FCC RF Exposure

FCC ID: QISLEO-BX9

RF Exposure Info

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FCCID_3388147

FCC SAR Compliance Test Report Product Name: Smart Watch Model: LEO-BX9 Report No.: SYBH(Z-SAR)031032017-2 FCC ID: QISLEO-BX9 APPROVED PREPARED (Lab Manager) (Test Engineer) BY DATE 2017-03-29 2017-03-29 Reliability Laboratory of Huawei Technologies Co., Ltd. (Global Compliance and Testing Center of Huawei Technologies Co., Ltd) Administration Building, Headquarters of Huawei Technologies Co., Ltd., Bantian, Longgang District, Shenzhen, 518129, P.R.C Tel: +86 755 28780808 Fax: +86 755 89652518

K K Notice K K 1. The laboratory has passed the accreditation by China National Accreditation Service for Conformity Assessment (CNAS). The accreditation number is LO810. 2. The laboratory has passed the accreditation by The American Association for Laboratory Accreditation {A2LA). The accreditation number is 2174.01 & 2: 74.02 & 2174.03 3. The laboratory (Reliabilty Lab of Huawel Technologies Co., Ld) is also named "Global Compliance and Testing Center of Huawel Technologies Co., Ltd", the both names have coexisted since 2009. 4. The test report is invalid if not marked with the signatures of the persons responsible for preparing and approving the test report. 5. The test report is invalid if there is any evidence of erasure and/or falsification. 6. The test report is only valld for the test samples. 7. Content of the test report, in part or in full, cannot be used for publicity and/or promotional purposes without prior written approval from the laboratory. Report No.: SYBH(Z—SAR)O31032017—2 Huawel Propretary and Gontidential Page 2 o 34 Copyright © Huawei Technologies Co., Ltd

Table of Contents 1 General Information ............................................................................................................................................... 5 1.1 Statement of Compliance ...................................................................................................................... 5 1.2 RF exposure limits ................................................................................................................................. 6 1.3 EUT Description ..................................................................................................................................... 7 1.3.1 General Description ............................................................................................................................... 8 1.4 Test specification(s) .............................................................................................................................. 9 1.5 Testing laboratory .................................................................................................................................. 9 1.6 Applicant and Manufacturer ................................................................................................................... 9 1.7 Application details .................................................................................................................................. 9 1.8 Ambient Condition................................................................................................................................. 9 2 SAR Measurement System ................................................................................................................................. 10 2.1 SAR Measurement Set-up ................................................................................................................... 10 2.2 Test environment ................................................................................................................................. 11 2.3 Data Acquisition Electronics description ............................................................................................. 11 2.4 Probe description ................................................................................................................................. 12 2.5 Phantom description ............................................................................................................................ 13 2.6 Device holder description .................................................................................................................... 14 2.7 Test Equipment List ............................................................................................................................. 15 3 SAR Measurement Procedure ............................................................................................................................ 16 3.1 Scanning procedure ............................................................................................................................. 16 3.2 Spatial Peak SAR Evaluation .............................................................................................................. 17 3.3 Data Storage and Evaluation ............................................................................................................... 18 4 System Verification Procedure ............................................................................................................................ 20 4.1 Tissue Verification................................................................................................................................ 20 4.2 System Check ...................................................................................................................................... 22 4.3 System check Procedure ..................................................................................................................... 22 5 SAR measurement variability and uncertainty .................................................................................................... 23 5.1 SAR measurement variability .............................................................................................................. 23 5.2 SAR measurement uncertainty ............................................................................................................ 23 6 SAR Test Configuration ....................................................................................................................................... 24 6.1 Test Positions Configuration ................................................................................................................ 24 6.1.1 10-g Extremity Exposure Condition ..................................................................................................... 24 6.1.2 Next-to-Mouth Exposure Condition ...................................................................................................... 24 6.2 WiFi Test Configuration ....................................................................................................................... 25 6.2.1 Initial Test Position Procedure ............................................................................................................. 25 6.2.2 Initial Test Configuration Procedure .................................................................................................... 25 6.2.3 Sub Test Configuration Procedure ...................................................................................................... 25 6.2.4 WiFi 2.4G SAR Test Procedures ......................................................................................................... 26 6.2.5 BT Test Configuration .......................................................................................................................... 26 7 SAR Measurement Results ................................................................................................................................. 27 7.1 Conducted power measurements ........................................................................................................ 27 7.1.1 Conducted power measurements of WiFi 2.4G ................................................................................... 27 7.1.2 Conducted power measurements of BT .............................................................................................. 27 7.2 SAR measurement Results ................................................................................................................. 28 7.2.1 SAR measurement Result of WiFi 2.4G .............................................................................................. 29 7.2.2 SAR measurement Result of BT .......................................................................................................... 31 7.3 Multiple Transmitter Evaluation ........................................................................................................... 32 7.3.1 Stand-alone SAR test exclusion .......................................................................................................... 33 7.3.2 Simultaneous Transmission Possibilities ............................................................................................. 33 Appendix A. System Check Plots ........................................................................................................................ 34 Appendix B. SAR Measurement Plots................................................................................................................. 34 Appendix C. Calibration Certificate ..................................................................................................................... 34 Appendix D. Photo documentation ...................................................................................................................... 34 Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 3 of 34 Copyright © Huawei Technologies Co., Ltd

ue Modified History X X ISSUED REV. DESCRIPTION DaATE REMARK Infal Test Report Release. This test report shares the same test data of LEO—BX9 (Report No: cna. a ¥"0 |gvBH(Z—SAR}O12012017—2) and adds anew 2017—03—29 Sun Shanbin optional battery test data. Report No.: SVBH(Z—SAR)O31032017—2 Huawel Propretary and Gontidential Page 4 of 34 Copyright © Huawei Technologies Co., Ltd

1 General Information 1.1 Statement of Compliance The maximum results of Specific Absorption Rate (SAR) found during testing is as below Table 1. Max Reported SAR(W/kg) Band 1-g Next-to-Mouth(10mm) 10-g Extremity (0mm) WiFi 2.4G 0.30 0.12 BT NA 0.07 Table 1:Summary of test result Note: The device is in compliance with Specific Absorption Rate(SAR) for general population/uncontraolled exposure limits according to the FCC rule §2.1093, the ANSI C95.1:1992/IEEE C95.1:1991, the NCRP Report Number 86 for uncontrolled environment, according to the Industry Canada Radio Standards Specification RSS-102 for General Population/Uncontrolled exposure, and had been tested in accordance with the measurement methods and procedures specified in IEEE Std 1528-2013. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 5 of 34 Copyright © Huawei Technologies Co., Ltd

1.2 RF exposure limits Uncontrolled Environment Controlled Environment Human Exposure General Population Occupational Spatial Peak SAR* (Brain/Body/Arms/Legs) 1.60 W/kg 8.00 W/kg Spatial Average SAR** (Whole Body) 0.08 W/kg 0.40 W/kg Spatial Peak SAR*** (Hands/Feet/Ankle/Wrist) 4.00 W/kg 20.00 W/kg Table 2: RF exposure limits The limit applied in this test report is shown in bold letters Notes: * The Spatial Peak value of the SAR averaged over any 1 gram of tissue (defined as a tissue volume in the shape of a cube) and over the appropriate averaging time. ** The Spatial Average value of the SAR averaged over the whole body. *** The Spatial Peak value of the SAR averaged over any 10 grams of tissue (defined as a tissue volume in the shape of a cube) and over the appropriate averaging time. Uncontrolled Environments are defined as locations where there is the exposure of individuals who have no knowledge or control of their exposure. Controlled Environments are defined as locations where there is exposure that may be incurred by persons who are aware of the potential for exposure, (i.e. as a result of employment or occupation. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 6 of 34 Copyright © Huawei Technologies Co., Ltd

1.3 EUT Description Device Information: Product Name: Smart Watch Model: LEO-BX9 FCC ID : QISLEO-BX9 TKQ0116B19000124(1#) SN.: YGV0116B15000114(2#) Device Type : Portable device Device Phase: Identical Prototype Exposure Category: Uncontrolled environment / general population Hardware Version : EA1LEOUM Software Version : sawshark-userdebug7.1.1NFF47 Antenna Type : Internal antenna Device Operating Configurations: Supporting Mode(s) WiFi 2.4G, BT,NFC Test Modulation WiFi(DSSS/OFDM),BT(GFSK) Band Tx (MHz) Rx (MHz) Operating Frequency BT 2400-2483.5 2400-2483.5 Range(s) WiFi 2.4G 2400-2483.5 2400-2483.5 NFC / 13.56 802.11b/g/n 20M:1-6-11 Test Channels (low-mid-high): BT:0-19-39-78 Table 3:Device information and operating configuration Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 7 of 34 Copyright © Huawei Technologies Co., Ltd

1.3.1 General Description LEO-BX9 is a smart watch based on Android wear OS; it can be communicated with mobile phone via Bluetooth. Watch also support MP3 player function, voice communication, alarm clock, gyro sensor, intelligent user can judge the state of motion, with PPG measurement of heart rate and supports IP68 dustproof and waterproof level. The WiFi/BT frequency is 2.4GHz. Battery information: Name Manufacture Serials number Description Desay Battery Co.,Ltd Battery Model: HB512627ECW Rechargeable Rated capacity: 410mAh NA Li-ion Harbin Coslight Power Co., Ltd. Nominal Voltage: +3.82V The differences between LEO-BX9 old and LEO-BX9 new as beow: Model LEO-BX9 old LEO-BX9 new Trade mark HUAWEI HUAWEI PCB layout The same The same Frequency The same The same NFC/GPS The same The same Hardware Version The same The same Software Version The same The same Dimensions The same The same Appearance The same The same BT/Wi-Fi antenna The same The same Type: Li-Polymer Battery Type: Li-Polymer Battery Manufacture: Manufacture: Harbin Coslight Power Co., Desay Battery Co.,Ltd Ltd. Battery Description: Desay Battery Co.,Ltd Battery Model: HB512627ECW Battery Model: HB512627ECW Rated capacity: 410mAh Rated capacity: 410mAh Nominal Voltage:3.82 V Nominal Voltage:3.82 V Others the same the same According to the difference description above,This test report shares the same test data of LEO-BX9, LEO-BX9 Classic (Report No: SYBH(Z-SAR)012012017-2) and adds the new optional battery test data at the SAR worst case of each frequency band. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 8 of 34 Copyright © Huawei Technologies Co., Ltd

1.4 Test specification(s) Safety Levels with Respect to Human Exposure to Radio Frequency ANSI C95.1:1992 Electromagnetic Fields, 3 kHz – 300 GHz.( IEEE Std C95.1-1991) Recommended Practice for Determining the Peak Spatial-Average Specific IEEE Std 1528-2013 Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques Radio Frequency Exposure Compliance of Radiocommunication Apparatus RSS-102 (All Frequency Bands (Issue 5 of March 2015) KDB447498 D01 General RF Exposure Guidance v06 KDB248227 D01 SAR Guidance for IEEE 802 11 Wi-Fi SAR v02r02 KDB865664 D01 SAR measurement 100 MHz to 6 GHz v01r04 KDB865664 D02 SAR Reporting v01r02 KDB690783 D01 SAR Listings on Grants v01r03 1.5 Testing laboratory Test Site The Reliability Laboratory of Huawei Technologies Co., Ltd. Section G1,Huawei Base Bantian, Longgang District, Shenzhen 518129, P.R. Test Location China Telephone +86 755 28780808 Fax +86 755 89652518 The Test laboratory (area of testing) is accredited according to ISO/IEC 17025. State of accreditation CNAS Registration number: L0310 A2LA TESTING CERT #2174.01 & 2174.02 & 2174.03 1.6 Applicant and Manufacturer Company Name HUAWEI TECHNOLOGIES CO., LTD Administration Building, Headquarters of Huawei Technologies Co., Ltd., Address Bantian, Longgang District, Shenzhen, 518129, P.R.C 1.7 Application details Start Date of test 2017-03-24 End Date of test 2017-03-24 1.8 Ambient Condition Ambient temperature 20°C – 24°C Relative Humidity 30% – 70% Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 9 of 34 Copyright © Huawei Technologies Co., Ltd

2 SAR Measurement System 2.1 SAR Measurement Set-up The DASY system for performing compliance tests consists of the following items:  A standard high precision 6-axis robot (Stäubli RX family) with controller and software. An arm extension for accommodating the data acquisition electronics (DAE).  A dosimetric probe, i.e. an isotropic E-field probe optimized and calibrated for usage in tissue simulating liquid. The probe is equipped with an optical surface detector system.  A data acquisition electronic (DAE) which performs the signal amplification, signal multiplexing, AD- conversion, offset measurements, mechanical surface detection, collision detection, etc. The unit is battery powered with standard or rechargeable batteries. The signal is optically transmitted to the EOC.  A unit to operate the optical surface detector which is connected to the EOC.  The Electro-Optical Coupler (EOC) performs the conversion from the optical into a digital electric signal of the DAE. The EOC is connected to the DASY measurement server.  The DASY measurement server, which performs all real-time data evaluation for field measurements and surface detection, controls robot movements and handles safety operation. A computer operating Windows 7.  DASY software and SEMCAD data evaluation software.  Remote control with teach panel and additional circuitry for robot safety such as warning lamps, etc.  The generic twin phantom enabling the testing of left-hand and right-hand usage.  The device holder for handheld mobile phones.  Tissue simulating liquid mixed according to the given recipes.  System check dipoles allowing to validate the proper functioning of the system. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 10 of 34 Copyright © Huawei Technologies Co., Ltd

2.2 Test environment The DASY measurement system is placed at the head end of a room with dimensions: 5 x 2.5 x 3 m³, the SAM phantom is placed in a distance of 75 cm from the side walls and 1.1m from the rear wall. Above the test system a 1.5 x 1.5 m² array of pyramid absorbers is installed to reduce reflections from the ceiling. Picture 1 of the photo documentation shows a complete view of the test environment. The system allows the measurement of SAR values larger than 0.005 mW/g. 2.3 Data Acquisition Electronics description The data acquisition electronics (DAE) consist of a highly sensitive electrometer-grade preamplifier with auto-zeroing, a channel and gain-switching multiplexer, a fast 16 bit AD-converte and a command decoder with a control logic unit. Transmission to the measurement server is accomplished through an optical downlink for data and status information, as well as an optical uplink for commands and the clock. The mechanical probe mounting device includes two different sensor systems for frontal and sideways probe contacts. They are used for mechanical surface detection and probe collision detection. DAE4 Input Impedance 200MOhm The Inputs symmetrical and floating Common mode rejection above 80 dB Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 11 of 34 Copyright © Huawei Technologies Co., Ltd

2.4 Probe description These probes are specially designed and calibrated for use in liquids with high permittivities. They should not be used in air, since the spherical isotropy in air is poor (±2 dB). The dosimetric probes have special calibrations in various liquids at different frequencies. Isotropic E-Field Probe ES3DV3 for Dosimetric Measurements Symmetrical design with triangular core Interleaved sensors Construction Built-in shielding against static charges PEEK enclosure material (resistant to organic solvents, e.g., DGBE) Calibration ISO/IEC 17025 calibration service available. 10 MHz to 4 GHz; Linearity: ± 0.2 dB (30 MHz to 4 Frequency GHz) ± 0.2 dB in HSL (rotation around probe axis) Directivity ± 0.3 dB in tissue material (rotation normal to probe axis) Dynamic range 5 µW/g to > 100 mW/g; Linearity: ± 0.2 dB Overall length: 337 mm (Tip: 20 mm) Dimensions Tip diameter: 3.9 mm (Body: 12 mm) Distance from probe tip to dipole centers: 2.0 mm General dosimetry up to 4 GHz Application Dosimetry in strong gradient fields Compliance tests of mobile phones Isotropic E-Field Probe EX3DV4 for Dosimetric Measurements Symmetrical design with triangular core Built-in shielding against static charges Construction PEEK enclosure material (resistant to organic solvents, e.g., DGBE) Calibration ISO/IEC 17025 calibration service available. 10 MHz to >6 GHz; Linearity: ± 0.2 dB (30 MHz to Frequency 6 GHz) ± 0.3 dB in HSL (rotation around probe axis) Directivity ± 0.5 dB in tissue material (rotation normal to probe axis) 10 µW/g to > 100 mW/g; Dynamic range Linearity: ± 0.2 dB(noise:typically<1µW/g) Overall length: 337 mm (Tip:20 mm) Tip diameter:2.5 mm (Body:12 mm) Dimensions Typical distance from probe tip to dipole centers: 1mm High precision dosimetric measurements in any exposure scenario(e.g.,very strong gradient fields). Application Only probe which enables compliance testing for frequencies up to 6 GHz with precision of better 30% Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 12 of 34 Copyright © Huawei Technologies Co., Ltd

dz HUAWE! 2.5 Phantom description SAM Twin Phantom Shell Thickness 2mm0.2mm;The ear region:6.0+0.2mm Filling Volume Approximately 25 liters Length:1000mm; Width:500mm; bimsnsichs Height: adjustable feet Left hand Measurement Areas Right hand Flat phantom The bottom plate contains three pairs of bolts for locking the device holder. The device holder positions are adjusted to the standard measurement positions in the three sections. A white cover is provided to cover the phantom during off—periods to prevent water evaporation and changes in the liquid parameters. Free space scans of devices on top of this phantom cover are possible. Three reference marks are provided on the phantom counter. These reference marks are used to teach the absolute phantom position relative to the robot. The following figure shows the definition of reference point: ear reference point right hand side ear reference point left hand side reference point flat position EL4 Phantom Shell Thickness 2mm+0.2mm Filling Volume Approximately 30 liters Dimensions Major axis:600mm; Minor axis:400mm; Measurement Areas Flat phantom The EL4 phantom is intended for compliance testing of handheld and body—mounted wireless devices in the frequency range of 30MHz to 6GHz. EL4 is fully compatible with the latest draft of the standard IEC 62209—2 and all known tissue simulating liquids. The phantom shell material is resistant to all ingredients used in the tissue—equivalent liquid recipes. The shell of the phantom including ear spacers is constructed from low permittivity and low loss material, with a relative permittivity 25ers5 at =3 GHz,3s ers4 at >3 GHz and and a loss tangent <0.05. Report No.: SYBH(Z—SAR)031032017—2 Huawei Proprietary and Confidential Page 13 of 34 Copyright © Huawei Technologies Co., Ltd

2.6 Device holder description The DASY device holder has two scales for device rotation (with respect to the body axis) and the device inclination (with respect to the line between the ear openings). The plane between the ear openings and the mouth tip has a rotation angle of 65°. The bottom plate contains three pair of bolts for locking the device holder. The device holder positions are adjusted to the standard measurement positions in the three sections. This device holder is used for standard mobile phones or PDA‟s only. If necessary an additional support of polystyrene material is used. The DASY device holder is constructed of low-loss POM material having the following dielectric parameters: relative permittivity ε =3 and loss tangent σ =0.02. The amount of dielectric material has been reduced in the closest vicinity of the device, since measurements have suggested that the influence of the clamp on the test results could thus be lowered. The device holder permits the device to be positioned with a tolerance of ±1° in the tilt angle. Larger DUT‟s (e.g. notebooks) cannot be tested using this device holder. Instead a support of bigger polystyrene cubes and thin polystyrene plates is used to position the DUT in all relevant positions to find and measure spots with maximum SAR values. Therefore those devices are normally only tested at the flat part of the SAM. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 14 of 34 Copyright © Huawei Technologies Co., Ltd

2.7 Test Equipment List This table gives a complete overview of the SAR measurement equipment. Devices used during the test described are marked Manufacture Date of last Device Type Serial number Valid period r calibration )* SPEAG Dosimetric E-Field Probe EX3DV4 7381 2016-09-29 One year SPEAG 835 MHz Dipole D835V2 4d126 2015-07-23 Three years SPEAG 900 MHz Dipole D900V2 1d192 2016-02-02 Three years SPEAG 1750 MHz Dipole D1750V2 1145 2016-02-02 Three years SPEAG 1900 MHz Dipole D1900V2 5d143 2014-09-23 Three years SPEAG 2000 MHz Dipole D2000V2 1036 2015-11-25 Three years SPEAG 2300 MHz Dipole D2300V2 1020 2015-09-21 Three years SPEAG 2450 MHz Dipole D2450V2 978 2016-02-08 Three years SPEAG 2600 MHz Dipole D2600V2 1119 2016-02-03 Three years SPEAG 5GHz Dipole D5GHzV2 1155 2015-04-27 Three years SPEAG Data acquisition electronics DAE4 1492 2016-09-28 One year SPEAG Software DASY N/A NCR NCR SPEAG Twin Phantom SAM1 TP-1475 NCR NCR SPEAG Twin Phantom SAM2 TP-1474 NCR NCR SPEAG Twin Phantom SAM3 TP-1597 NCR NCR SPEAG Twin Phantom SAM4 TP-1620 NCR NCR SPEAG Twin Phantom SAM5 TP-1894 NCR NCR SPEAG Twin Phantom SAM6 TP-1892 NCR NCR SPEAG Flat Phantom ELI 5.0 TP-1111 NCR NCR Universal Radio R&S CMU 200 113989 2016-05-12 One year Communication Tester WideBand Radio R&S CMW 500 126855 2016-07-07 One year Communication Tester Agilent Wireless Connectivity Test Set N4010A MY49081592 2016-08-05 One year Agilent Network Analyser E5071B MY42404956 2016-05-24 One year Agilent Dielectric Probe Kit 85070E 2484 NCR NCR Agilent Signal Generator N5181A MY50145341 2016-11-14 One year MINI- Amplifier ZHL-42W QA1402001 NCR NCR CIRCUITS AR Directional Coupler DC7144M1 31190 2016-05-13 One year Agilent Power Meter E4417A MY54100027 2016-03-31 One year Agilent Power Meter Sensor E9321A MY54130007 2016-03-31 One year Agilent Power Meter Sensor E9321A MY54130001 2016-03-31 One year Note: 1) Per KDB865664D01 requirements for dipole calibration, the test laboratory has adopted three-year extended calibration interval. Each measured dipole is expected to evaluate with the following criteria at least on annual interval in Appendix C. a) There is no physical damage on the dipole; b) System check with specific dipole is within 10% of calibrated value; c) The most recent return-loss result, measured at least annually, deviates by no more than 20% from the previous measurement. d) The most recent measurement of the real or imaginary parts of the impedance, measured at least annually is within 5Ω from the previous measurement. 2) Network analyzer probe calibration against air, distilled water and a shorting block performed before measuring liquid parameters. 3) *All the equipments are within the valid period when the tests are performed. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 15 of 34 Copyright © Huawei Technologies Co., Ltd

3 SAR Measurement Procedure 3.1 Scanning procedure The DASY installation includes predefined files with recommended procedures for measurements and system check. They are read—only document files and destined as fully detined but unmeasured masks. All test positions (head or body—worn) are tested with the same configuration of test steps differing only in the grid detinition for the different test positions. * The ‘reference" and "drift" measurements are located at the beginning and end of the batch process. They measure the field rift at one single point in the liquid over the complete procedure. The indicated driis mainly the variation of the DUT‘s output power and should vary max. +/> 5 %. * The "surface check" measurement tests the optical surface detection system of the DASY system by repeatedly detecting the surface with the optical and mechanical surface detector and comparing the results. The output gives the detecting heights of both systems, the difference between the two systems and the standard deviation of the detection repeatabilty. Air bubbles or refraction in the liquid due to separation of the sugar—water mixture gives poor repeatabiltty (above + 0.imm). To prevent wrong results tests are only executed when the liquid is free of air bubbles. The difference between the optical surface detection and the actual surface depends on the probe and is specified with each probe. (It does not depend on the surface reflectivity or the probe angle to the surface within + 30°.) * The "area scan" measures the SAR above the DUT or verfication dipole on a parallel plane to the surface. It is used to locate the approximate location of the peak SAR with 2D spline interpolation. The robot performs a stepped movement along one grid axis while the local electrical field strength is measured by the probe. The probe is toushing the surface of the SAM during acquisition of measurementvalues. The standard scan uses large grid spacing for faster measurement. Standard grid spacing for head measurements is 15 mm in x— and y« dimension(<2GHz), 12 mm in xand y— dimension(2—4 GHz) and 10mm in x— and y— dimension(4—6GHz). If a finer resolution is needed, the grid spacing can bereduced. Grid spacing and orientation haveno influence on the SAR result. For special applications where the standard scan method does not find the peak SAR within the grid, e.g. mobile phones with flip cover, the grid can be aclapted in orientation. Results of this coarse scan are shownin Appendlx B. * A ‘zoom scan" measures the field in a volume around the 2D peak SAR value acquired in the previous "coarse" scan. This is a fine grid with maximum scan spatial resolution; A Xtcom & Yrom 2GHz — <@mm, 2—4GHz — <5 mm and 4—6 GHz—<4mm; A Zxcon <3GHz — <5 mm, 3—4 GHz— <4mm and 4—6GHz—<2mm where the robot addtionally moves the probe along the z—axis away from the bottom of the Phantom, DASY is also able to perform repeated zoom scans if more than 1 peak is found during area scan. In this document, the evaluated peak 19 and 10g averaged SAR values are shownin the 20—graphics in Appendx B. Test results relevant for the specified standard (see chapter 1.4.are shown in table form form in chapter 7.2. * A Zads scan measures the total SAR value at the xand y—position of the maximum SAR value found during the cube scan. The probe is moved away in z—direction from the bottom of the SAM phantom in 2 mm steps. This measurementshows the continuity of the liquid and can — depending in the field strength — also show the liquid depth. A z—axis scan of the measurement with maximum SAR value is shown in Appendx B. Report No.: SYBH(Z—SAR)O31032017—2 Huawel Propretary and Gontidential Page 16 of 34 Copyright © Huawei Technologies Co., Ltd

The following table summarizes the area scan and zoom scan resolutions per FCC KDB 865664D01: Maximun Maximun Zoom Maximun Zoom Scan spatial resolution Minimum Area Scan Scan spatial Uniform Grid Graded Grad zoom scan Frequency resolution resolution volume ΔzZoom(n) ΔzZoom(1)* ΔzZoom(n>1)* (Δxarea, Δyarea ) (ΔxZoom, ΔyZoom ) (x,y,z) ≤2GHz ≤15mm ≤8mm ≤5mm ≤4mm ≤1.5*ΔzZoom(n-1) ≥30mm 2-3GHz ≤12mm ≤5mm ≤5mm ≤4mm ≤1.5*ΔzZoom(n-1) ≥30mm 3-4GHz ≤12mm ≤5mm ≤4mm ≤3mm ≤1.5*ΔzZoom(n-1) ≥28mm 4-5GHz ≤10mm ≤4mm ≤3mm ≤2.5mm ≤1.5*ΔzZoom(n-1) ≥25mm 5-6GHz ≤10mm ≤4mm ≤2mm ≤2mm ≤1.5*ΔzZoom(n-1) ≥22mm 3.2 Spatial Peak SAR Evaluation The spatial peak SAR - value for 1 and 10 g is evaluated after the Cube measurements have been done. The basis of the evaluation are the SAR values measured at the points of the fine cube grid consisting of 5 x 5 x 7 points( with 8mm horizontal resolution) or 7 x 7 x 7 points( with 5mm horizontal resolution) or 8 x 8 x 7 points( with 4mm horizontal resolution). The algorithm that finds the maximal averaged volume is separated into three different stages.  The data between the dipole center of the probe and the surface of the phantom are extrapolated. This data cannot be measured since the center of the dipole is 2.7 mm away from the tip of the probe and the distance between the surface and the lowest measuring point is about 1 mm (see probe calibration sheet). The extrapolated data from a cube measurement can be visualized by selecting „Graph Evaluated‟.  The maximum interpolated value is searched with a straight-forward algorithm. Around this maximum the SAR - values averaged over the spatial volumes (1g or 10 g) are computed using the 3d-spline interpolation algorithm. If the volume cannot be evaluated (i.e., if a part of the grid was cut off by the boundary of the measurement area) the evaluation will be started on the corners of the bottom plane of the cube.  All neighboring volumes are evaluated until no neighboring volume with a higher average value is found. Extrapolation The extrapolation is based on a least square algorithm [W. Gander, Computermathematik, p.168-180]. Through the points in the first 3 cm along the z-axis, polynomials of order four are calculated. These polynomials are then used to evaluate the points between the surface and the probe tip. The points, calculated from the surface, have a distance of 1 mm from each other. Interpolation The interpolation of the points is done with a 3d-Spline. The 3d-Spline is composed of three one- dimensional splines with the "Not a knot"-condition [W. Gander, Computermathematik, p.141-150] (x, y and z -direction) [Numerical Recipes in C, Second Edition, p.123ff ]. Volume Averaging At First the size of the cube is calculated. Then the volume is integrated with the trapezoidal algorithm. 8000 points (20x20x20) are interpolated to calculate the average. Advanced Extrapolation DASY uses the advanced extrapolation option which is able to compansate boundary effects on E-field probes. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 17 of 34 Copyright © Huawei Technologies Co., Ltd

3.3 Data Storage and Evaluation Data Storage The DASY software stores the acquired data from the data acquisition electronics as raw data (in microvolt readings from the probe sensors), together with all necessary software parameters for the data evaluation (probe calibration data, liquid parameters and device frequency and modulation data) in measurement files with the extension "DAE4". The software evaluates the desired unit and format for output each time the data is visualized or exported. This allows verification of the complete software setup even after the measurement and allows correction of incorrect parameter settings. For example, if a measurement has been performed with a wrong crest factor parameter in the device setup, the parameter can be corrected afterwards and the data can be re-evaluated. The measured data can be visualized or exported in different units or formats, depending on the selected probe type ([V/m], [A/m], [°C], [mW/g], [mW/cm²], [dBrel], etc.). Some of these units are not available in certain situations or show meaningless results, e.g., a SAR output in a lossless media will always be zero. Raw data can also be exported to perform the evaluation with other software packages. Data Evaluation by SEMCAD The SEMCAD software automatically executes the following procedures to calculate the field units from the microvolt readings at the probe connector. The parameters used in the evaluation are stored in the configuration modules of the software: Probe parameters: - Sensitivity Normi, ai0, ai1, ai2 - Conversion factor ConvFi - Diode compression point Dcpi Device parameters: - Frequency f - Crest factor cf Media parameters: - Conductivity  - Density  These parameters must be set correctly in the software. They can be found in the component documents or they can be imported into the software from the configuration files issued for the DASY components. In the direct measuring mode of the multimeter option, the parameters of the actual system setup are used. In the scan visualization and export modes, the parameters stored in the corresponding document files are used. The first step of the evaluation is a linearization of the filtered input signal to account for the compression characteristics of the detector diode. The compensation depends on the input signal, the diode type and the DC-transmission factor from the diode to the evaluation electronics. If the exciting field is pulsed, the crest factor of the signal must be known to correctly compensate for peak power. The formula for each channel can be given as: Vi = Ui + Ui2  cf/dcpi with Vi = compensated signal of channel i (i = x, y, z) Ui = input signal of channel i (i = x, y, z) cf = crest factor of exciting field (DASY parameter) dcpi = diode compression point (DASY parameter) From the compensated input signals the primary field data for each channel can be Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 18 of 34 Copyright © Huawei Technologies Co., Ltd

evaluated: E-field probes: Ei = (Vi / Normi  ConvF)1/2 H-field probes: Hi = (Vi)1/2  (ai0 + ai1f + ai2f2)/f with Vi = compensated signal of channel i (i = x, y, z) Normi = sensor sensitivity of channel i (i = x, y, z) [mV/(V/m)2] for E-field Probes ConvF = sensitivity enhancement in solution aij = sensor sensitivity factors for H-field probes f = carrier frequency [GHz] Ei = electric field strength of channel i in V/m Hi = magnetic field strength of channel i in A/m The RSS value of the field components gives the total field strength (Hermitian magnitude): Etot = (Ex2 + EY2 + Ez2)1/2 The primary field data are used to calculate the derived field units. SAR = (Etot2  ) / (  1000) with SAR = local specific absorption rate in mW/g Etot = total field strength in V/m  = conductivity in [mho/m] or [Siemens/m]  = equivalent tissue density in g/cm3 Note that the density is normally set to 1 (or 1.06), to account for actual brain density rather than the density of the simulation liquid.The power flow density is calculated assuming the excitation field to be a free space field.  Ppwe = Etot2 / 3770 or Ppwe = Htot2 37.7 with Ppwe = equivalent power density of a plane wave in mW/cm2 Etot = total electric field strength in V/m Htot = total magnetic field strength in A/m Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 19 of 34 Copyright © Huawei Technologies Co., Ltd

4 System Verification Procedure 4.1 Tissue Verification The simulating liquids should be checked at the beginning of a series of SAR measurements to determine of the dielectic parameter are within the tolerances of the specified target values. The measured conductivity and relative permittivity should be within ± 5% of the target values. The following materials are used for producing the tissue-equivalent materials. Ingredients (% of weight) Head Tissue Frequency Band (MHz) 750 835 1750 1900 2300 2450 2600 Water 39.2 41.45 52.64 55.242 62.82 62.7 55.242 Salt (NaCl) 2.7 1.45 0.36 0.306 0.51 0.5 0.306 Sugar 57.0 56.0 0.0 0.0 0.0 0.0 0.0 HEC 0.0 1.0 0.0 0.0 0.0 0.0 0.0 Bactericide 0.0 0.1 0.0 0.0 0.0 0.0 0.0 Triton X-100 0.0 0.0 0.0 0.0 0.0 0.0 0.0 DGBE 0.0 0.0 47.0 44.542 36.67 36.8 44.452 Ingredients (% of weight) Body Tissue Frequency Band (MHz) 750 835 1750 1900 2300 2450 2600 Water 50.3 52.4 69.91 69.91 73.32 73.2 64.493 Salt (NaCl) 1.60 1.40 0.13 0.13 0.06 0.04 0.024 Sugar 47.0 45.0 0.0 0.0 0.0 0.0 0.0 HEC 0.0 1.0 0.0 0.0 0.0 0.0 0.0 Bactericide 0.0 0.1 0.0 0.0 0.0 0.0 0.0 Triton X-100 0.0 0.0 0.0 0.0 0.0 0.0 0.0 DGBE 0.0 0.0 29.96 29.96 26.62 26.7 32.252 Table 4: Tissue Dielectric Properties Salt: 99+% Pure Sodium Chloride; Sugar: 98+% Pure Sucrose; Water: De-ionized, 16M+ resistivity HEC: Hydroxyethyl Cellulose; DGBE: 99+% Di(ethylene glycol) butyl ether, [2-(2-butoxyethoxy)ethanol] Triton X-100(ultra pure): Polyethylene glycol mono [4-(1,1,3,3-tetramethylbutyl)phenyl]ether Simulating Head Liquid (HBBL600-6000V6), Manufactured by SPEAG: Ingredients (% by weight) Water 50-65% Mineral oil 10-30% Emulsifiers 8-25% Sodium salt 0-1.5% Simulating Body Liquid (MBBL600-6000V6),Manufactured by SPEAG: Ingredients (% by weight) Water 60-80% Esters,Emulsifiers,Inhibitors 20-40% Sodium salt 0-1.5% Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 20 of 34 Copyright © Huawei Technologies Co., Ltd

Measured Deviation Measured Target Tissue Tissue Tissue (Within +/-5% ) Liquid Frequency Test Date Type σ Temp. (MHz) εr σ (S/m) εr Δεr Δσ (S/m) 2410 39.30 1.76 40.06 1.787 1.93% 1.53% 2450MHz 2435 39.20 1.79 39.97 1.811 1.96% 1.17% 21.3°C 2017/3/24 Head 2450 39.20 1.80 39.91 1.826 1.81% 1.44% 2460 39.20 1.81 39.87 1.836 1.71% 1.44% 2410 52.80 1.91 54.04 1.954 2.35% 2.30% 2450MHz 2435 52.70 1.94 54.00 1.971 2.47% 1.60% 21.5°C 2017/3/24 Body 2450 52.70 1.95 53.97 1.984 2.41% 1.74% 2460 52.70 1.96 53.97 1.993 2.41% 1.68% Table 5:Measured Tissue Parameter Note: 1)The dielectric parameters of the tissue-equivalent liquid should be measured under similar ambient conditions and within 2°C of the conditions expected during the SAR evaluation to satisfy protocol requirements. 2) KDB 865664 was ensured to be applied for probe calibration frequencies greater than or equal to 50MHz of the EUT frequencies. 3) The above measured tissue parameters were used in the DASY software to perform interpolation via the DASY software to determine actual dielectric parameters at the test frequencies. The SAR test plots may slightly differ from the table above since the DASY rounds to three significant digits. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 21 of 34 Copyright © Huawei Technologies Co., Ltd

4.2 System Check The system check is performed for verifying the accuracy of the complete measurement system and performance of the software. The system check is performed with tissue equivalent material according to IEEE P1528 (described above). The following table shows system check results for all frequency bands and tissue liquids used during the tests(Graphic Plot(s) see Appendix A). Measured SAR Deviation Target SAR (1W) (Normalized to 1W) (Within +/-10% ) Liquid System Check Test Date 1-g 10-g 1-g 10-g Temp. Δ1-g Δ10-g (W/kg) (W/kg) (W/kg) (W/kg) 2450MHz Head 53.30 24.90 52.00 24.16 -2.44% -2.97% 21.3°C 2017/3/24 2450MHz Body 52.10 24.70 48.40 23.16 -7.10% -6.23% 21.5°C 2017/3/24 Table 6:System Check Results 4.3 System check Procedure The system check is performed by using a system check dipole which is positioned parallel to the planar part of the SAM phantom at the reference point. The distance of the dipole to the SAM phantom is determined by a plexiglass spacer. The dipole is connected to the signal source consisting of signal generator and amplifier via a directional coupler, N-connector cable and adaption to SMA. It is fed with a power of 250 mW(below 5GHz) or 100mW(above 5GHz). To adjust this power a power meter is used. The power sensor is connected to the cable before the system check to measure the power at this point and do adjustments at the signal generator. At the outputs of the directional coupler both return loss as well as forward power are controlled during the system check to make sure that emitted power at the dipole is kept constant. This can also be checked by the power drift measurement after the test (result on plot). System check results have to be equal or near the values determined during dipole calibration (target SAR in table above) with the relevant liquids and test system. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 22 of 34 Copyright © Huawei Technologies Co., Ltd

5 SAR measurement variability and uncertainty 5.1 SAR measurement variability Per KDB8G5664 D01 SAR measurement 100 MHz to 6 GHz v01r04, SAR measurement variablity must be assessed for each frequency band, which is determined by the SAR probe callbration point and tissue—equivalent medium used for the device measurements. The additional measurements are repeated after the completion of all measurements requiring the same head or body tissue—equivalent medium in a frequency band. The test device should be returned to ambient conditions {normal room temperature) with the battery fully charged before it is re—mounted on the device holder for the repeated measurement(s) to minimize any unexpected variations in the repeated results. 1) Repeated measurement is not required when the original highest measured SAR is < 0.80 Wikg: steps 2) through 4) do not apply. 2) When the original highest measured SAR is > 0.80 W/kg, repeat that measurement once. 3) Perform a second repeated measurement only if the ratio of largest to smallest SAR for the original and first repeated measurements is > 1.20 or when the original or repeated measurement is 2 1.45 Wikg (~ 10%from the 1—g SAR lim#). 4) Perform a third repeated measurement only if the original, first or second repeated measurement is > 1.5 Wikg and the ratio of largest to smallest SAR for the original, first and second repeated measurements is > 1.20. The same procedures should be adapted for measurements according to extremity and occupational exposure limits by applying a factor of 2.5 for extremity exposure and a factor of 5 for occupational exposure to the corresponding SAR thresholds. The detailed repeated measurement results are shown in Section 7.2. 5.2 SAR measurement uncertainty Per KDB8G5GG4 D01 SAR Measurement 100 MHz to 6 GHz vO1r04.when the highest measured 1—g SAR within a frequency band is < 1.5 Wikg, the extensive SAR measurement uncertainty analysis described in IEEE Std 1528—2013 is not required in SAR reports submitted for equipment approval. The equivalent ratio (1.5/1.6) is applied to extremity and occupational exposure conditions. Report No.: SYBH(Z—SAR)O31032017—2 Huawel Propretary and Gontidential Page 25 of 34 Copyright © Huawei Technologies Co., Ltd

6 SAR Test Configuration 6.1 Test Positions Configuration Per FCC KDB 447498 D01, transmitters that are built-in within a wrist watch or similar wrist-worn devices typically operate in speaker mode for voice communication, with the device worn on the wrist and positioned next to the mouth. Next to the mouth exposure requires 1-g SAR, and the wrist-worn condition requires 10-g extremity SAR. The 10-g extremity and 1-g SAR test exclusions may be applied to the wrist and face exposure conditions. When SAR evaluation is required, next to the mouth use is evaluated with the front of the device positioned at 10 mm from a flat phantom filled with head tissue- equivalent medium. The wrist bands should be strapped together to represent normal use conditions. SAR for wrist exposure is evaluated with the back of the devices positioned in direct contact against a flat phantom fill with body tissue-equivalent medium. The wrist bands should be unstrapped and touching the phantom. The space introduced by the watch or wrist bands and the phantom must be representative of actual use conditions. 6.1.1 10-g Extremity Exposure Condition KDB447498 D01,the wrist watch requires extremity 10 gram SAR testing for the wrist (4.0 W/kg limit) with the back of the device in direct contact with the flat phantom. The strap shall be opened so that it isdivided into two parts as shown in Figure below. The device shall be positioned directly against the phantom surface with the strap straightened as much as possible and the back of the device towards the phantom.If the strap cannot normally be opened to allow placing in direct contact with the phantom surface, it may be necessary to break the strap of the device but ensuring to not damage the antenna. Figure – Test position for Limb-worn device For this device, the rigid wrist band is non-metallic. The wrist bands don't contain any electronic circuitry and antenna inside. So for Limbs Exposure Condition, the watch is tested with bands taken off using the flat phantom. The back side of the watch can be positioned in direct contact against a flat phantom after wrist band taken off. It can be ensured that it will not damage the antenna. 6.1.2 Next-to-Mouth Exposure Condition The device also has a speaker mode, so head SAR testing (1.6 W/kg limit) of the front face of the device at a distance of 10mm from the flat phantom is appropriate per section 6.2 of FCC KDB Publication 447498 D01. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 24 of 34 Copyright © Huawei Technologies Co., Ltd

6.2— WiFi Test Configuration For WiFi SAR testing, a communication link is set up with the testing software for WiFi mode test. During the test,at the each test frequency channel, the EUT is operated at the RF continuous emission mode. The test procedures in KDB 248227001 are applied. 6.2.1 Initial Test Position Procedure For exposure condition with multiple test position, such as handsets operating next to the ear, devices with hotspot mode or UMPC mini—tablet , procedures for Infflal test position can be applied. Using the transmission mode determined by the USS$S procedure or initlal test contiquration, area scans are measured for all position in an exposure condition. The test position with the highest extrapolated{peak) SAR is used as the inftlal test position. When reported SAR for the Inftial test postion is 5 0.4W/kg, no additional testing for the remaining test position is required. Oftherwise, SAR is evaluated at the subsequent highest peak SAR position untll the reported SAR result is s 0.8W/kg or all test position are measured. For all positions/configurations tested using the Initial test position and subsequent test positions, when the reported‘ SAR is > 0.8 Wikg, SAR is measured for these test positions/configurations on the subsequent next highest measured output power channel(s) until the reported SAR is 5 1.2 Wikg or all required channels are tested. 6.2.2 Initial Test Configuration Procedure An_Initlal test confiquration is determined for OFDM transmission modes according to the channel bandiwidth, modulation and data rate combination(s) with the highest maximum output power specified for production units in each standalone and aggregated frequency band. SAR is measured using the highest measured maximum output power channel. For configurations with the same specified or measured maximum output power, additional transmission mode and test channel selection procedures are required (see section 5.3.2 of KDB 248227001). SAR test reduction of subsequent highest output test channels is based on the reported SAR of the inflal test configuration. For next to the ear, hotspot mode and UMC min—tablet exposure configurations where multiple test positions are required, the Initlal test position procedure is applied to minimize the number of test positions required for SAR measurementusing the_inflal test confiquration transmission mode. For fixed exposure conditions that do not have muftiple SAR test positions, SAR is measured in the transmission mode determined by the inftial test confiquration. When the reported SAR of the Initlal test confiquration is > 0.8 W/kg, SAR measurement is required for the subsequent next highest measured output power channel(s) in the initial test confiquration until the reported SAR is 5 1.2 Wikg or all required channels are tested. 6.2.3 Sub Test Configuration Procedure SAR measurementrequirements for the remaining 802.11 transmission mode configurations that have not been tested in the_inal test confiquration are determined separately for each standalone and aggregated frequency band, in each exposure condition, according to the maximum output power specified for production units. When the highest reported SAR for the Inflal test confiquration, according to the_initlal test position or fixed exposure position requirements, is adjusted by the ratio of the subsequent test configuration to initial test confiquration specified maximum output power and the acjusted SAR is < 1.2 Wikg, SAR is not required for that subsequent test confiquration. Report No.: SYBH(Z—SAR)031032017—2 Huawel Propretary and GontiGential Page 25 of 34 Copyright © Huawei Technologies Co., Ltd

6.2.4 WiFi 2.4G SAR Test Procedures Separate SAR procedures are applied to DSSS and OFDM configurations in the 2.4 GHz band to simplify DSSS test requirements. For 802.11b DSSS SAR measurements, DSSS SAR procedure applies to fixed exposure test position and initial test position procedure applies to multiple exposure test positions. A) 802.11b DSSS SAR Test Requirements SAR is measured for 2.4 GHz 802.11b DSSS using either a fixed test position or, when applicable, the initial test position procedure. SAR test reduction is determined according to the following: 1) When the reported SAR of the highest measured maximum output power channel (section 3.1 of of KDB 248227D01) for the exposure configuration is ≤ 0.8 W/kg, no further SAR testing is required for 802.11b DSSS in that exposure configuration. 2) When the reported SAR is > 0.8 W/kg, SAR is required for that exposure configuration using the next highest measured output power channel. When any reported SAR is > 1.2 W/kg, SAR is required for the third channel; i.e., all channels require testing. B) 2.4GHz 802.11g/n OFDM SAR Test Exclusion Requirements When SAR measurement is required for 2.4 GHz 802.11g/n OFDM configurations, the measurement and test reduction procedures for OFDM are applied (section 5.3 of of KDB 248227D01). SAR is not required for the following 2.4 GHz OFDM conditions. 1) When KDB Publication 447498 SAR test exclusion applies to the OFDM configuration. 2) When the highest reported SAR for DSSS is adjusted by the ratio of OFDM to DSSS specified maximum output power and the adjusted SAR is ≤ 1.2 W/kg. C) SAR Test Requirements for OFDM configurations When SAR measurement is required for 802.11 g/n OFDM configurations, each standalone and frequency aggregated band is considered separately for SAR test reduction. In applying the initial test configuration and subsequent test configuration procedures, the 802.11 transmission configuration with the highest specified maximum output power and the channel within a test configuration with the highest measured maximum output power should be clearly distinguished to apply the procedures. 6.2.5 BT Test Configuration For BT SAR testing, the EUT‟s BT test mode is open and the EUT is connected with CMW500 which provides continuous transmitting RF signal with maximum output power.The CMW500 controls the EUT operating at 2480MHz(78CH) with hopping off, and data rata is set for DH5. This RF signal utilized in SAR measurement has almost 100% duty cycle and crest factor is 1. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 26 of 34 Copyright © Huawei Technologies Co., Ltd

7 SAR Measurement Results 7.1 Conducted power measurements For the measurements a CMW500 were used.The output power was measured using an integrated RF connector and attached RF cable. The CMW500 Wide Band Radio Communication Tester was used for BT output power measurements and SAR testing. Closed loop power control was used so the UE transmits with maximum output power during SAR testing. 7.1.1 Conducted power measurements of WiFi 2.4G Data Frequency Average Power SAR Test Mode Channel Rate Tune-up (MHz) (dBm) (Yes/No) (Mbps) 1 2412 17.00 15.35 Yes 802.11b 6 2437 1 17.00 15.42 Yes 11 2462 17.00 15.20 Yes 1 2412 13.00 / No 802.11g 6 2437 6 13.00 / No 11 2462 13.00 / No 1 2412 12.00 / No 802.11n 6 2437 6.5 12.00 / No 20M 11 2462 12.00 / No Table 7: Conducted power measurement results of WiFi 2.4G. Note: The Average conducted power of WiFi is measured with RMS detector. 7.1.2 Conducted power measurements of BT Average Conducted Power (dBm) BT 2450 Tune-up 0CH 39CH 78CH DH5 17.00 15.05 15.22 15.75 2DH5 14.00 13.31 13.52 13.79 3DH5 14.00 13.42 13.53 13.65 Average Conducted Power (dBm) BT 2450 Tune-up 0CH 19CH 39CH BLE 9.00 7.20 7.80 7.40 Table 8: Conducted power measurement results of BT Note: The conducted power of BT is measured with RMS detector. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 27 of 34 Copyright © Huawei Technologies Co., Ltd

7.2 SAR measurement Results General Notes: 1) Per KDB447498 DO1, all SAR measurement results are scaled to the maximum tune—up tolerance limit to demonstrate SAR compliance. 2) Per KDB447498 DO1, testing of other required channels within the operating mode of a frequency band is not required when the reported 1—g or 10—g SAR for the mid—band or highest output power channel is: * 5 0.8WW/g for 1—g or 2.0W/kg for 10—g respectively, when the transmission band is 5 100MHz. 5 0.6 Whkg or 1.5 Wikg, for 1—g or 10—g respectively, when the transmission band is between 100 MHz and 200 MHz. * 50.4 Wikg or 1.0 Wikg, for 1—g or 10—g respectively, when the fransmission band is 2 200 MHz. When the maximum output power variation across the required test channels is > !% dB, instead of the middle channel, the highest output power channel must be used. 3) Per KDBSG5G64 DO1,for each frequency band, repeated SAR measurement is required only when the measured SAR is 20.8W/kg; if the deviation among the repeated measurement is 520%, and the measured SAR <1.45W/kg, only one repeated measurement is required. 4) Per KDB865664 DO2, SAR plot is only required for the highest measured SAR in each exposure configuration, wireless mode and frequency band combination; Plots are also required when the measured SAR is > 1.5 Wikg, or > 7.0 Wikg for occupational exposure. The published RF exposure KDB procedures may require additional plots; for example, to support SAR to peak location separation ratlo test exclusion and/or volume scan post—processing(Refer to appendlx B for detailed SAR plots}. WiFi Notes: Per KDB248227001: 1) When reported SAR for the Inftlal test postion is s 0.4WW/kg, no additional testing for the remaining test position is required. Otherwise, SAR is evaluated at the subsequent highest peak SAR position until the reported SAR result is s 0.8W/kg or all test position are measured. For all positions/configurations tested using the initial test position and subsequenttest posttions, when the reported SAR is > 0.8 Wikg, SAR is measured for these test positions/configurations on the subsequent next highest measured output power channel(s) until the reported SAR is < 1.2 WAkg or all required channels are tested. 2) The highest SAR measured for the Inflal test postion or Inflal test confiquration should be used to determine SAR test exclusion according to the sum of 1—4 SAR and SAR peak to location ratio provisions in KDB 447498. In addftion, a test lab may also choose to perform standalone SAR measurements for test positions and 802.11 configurations that are not required by the I test position or inftial test confiquration procedures and apply the results to determine: simultaneous transmission SAR test exclusion, according to sum of 1—g and SAR peak to location ratio requirements to reduce the number of simultaneous transmission SAR measurements. 3) For WiFi 2.4G , SAR is measured for 2.4 GHz 802.11b DSSS using the Inftlal test position procedure. SAR is not required for the 2.4 GHz 802.11g/n OFOM condtions when KDB Publication 447498 SAR test exclusion applies to the OFOM configuration or when the highest reported SAR for DSSS is adjusted by the ratio of OFDM to DSSS specffied maximum output power and the adjusted SAR is < 1.2 W/g. BT Notes: 1) Speaker mode for voice communication is not applicable for BT. So Nextto—Mouth Exposure SAR test for BT is not required. Report No.: SYBH(Z—SAR)031032017—2 Huawel Propretary and GontiGential Page 28 of 34 Copyright © Huawei Technologies Co., Ltd

7.2.1 SAR measurement Result of WiFi 2.4G SAR Value Test Test Pow Cond Tune- Scaled (W/kg) Position Wrist- channel Test er u-cted up 1-g SAR Area Zoom and band /Freq. Mode Drift Power Power SAR Plot. Scan Scan Dist. (MHz) (dB) (dBm) (dBm) (W/kg) 1-g 1-g Original LEO-BX9 test data Non- 6/2437 802.11 b 0.197 0.165 0.03 15.42 17.00 0.237 / Metallic Non- Front 1/2412 802.11 b 0.213 0.196 -0.12 15.35 17.00 0.287 / Metallic side Non- 10mm 11/2462 802.11 b 0.149 0.146 0.07 15.20 17.00 0.221 / Metallic New test data of LEO-BX9 at worst position with battery2 Non- 1/2412 802.11 b 0.201 0.151 -0.08 15.35 17.00 0.294 Yes Metallic Table 9: Next to Mouth Exposure SAR test results of WiFi 2.4G (1.6W/kg Limit) SAR Value Test Test Condu- Tune- Scaled (W/kg) Powe Position Wrist- channel Test cted up 10-g SAR Area Zoom r Drift and band /Freq. Mode Power Power SAR Plot. Scan Scan (dB) Dist. (MHz) (dBm) (dBm) (W/kg) 10-g 10-g Original LEO-BX9 test data Non- Back 6/2437 802.11 b 0.067 0.078 0.03 15.42 17.00 0.112 / Metallic side 0mm New test data of LEO-BX9 at worst position with battery2 Non- 6/2437 802.11 b 0.067 0.075 0.17 15.42 17.00 0.108 Yes Metallic Table 10: 10-g Extremity Exposure SAR test results of WiFi 2.4G (4.0W/kg Limit) Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 29 of 34 Copyright © Huawei Technologies Co., Ltd

lA a «s z$ & According to KDB248227 DO1,The reported SAR must be sealed to 100%transmission duty factor to determine compliance at maximum tune—up tolerance limit.The scaled reported SAR is presented as below. Test pesioe Wiist chaoml Tet Stane C| pomum Cns Test . Scaled Actual . Reported (MHz). (Wikg) factor (Wikg) Original LEO—BX9 test data Non— Metallic 672437 802.11 b 0.237 97.49% 100% 0.244 Non— Front side Metallic 12412 802.11 b 0.287 97.49% 100% 0.294 10mm Non— Metallic 1172462 802.11 b 0.221 97.49% 100% 0.227 New test data of LEO—BX9 at worst position with battery2 NO"‘. 12412 802.11 b 0.204 97.49% 100% 0.301 Metallic Test Te_s_t Wrist channel Test Scaled Actual Maximum Reported Position band IFreq Mode SAR1Og duty duty factor SARrs 1 (Wikg) factor (Wikg) (MHz) Original LEO—BX9 test data Non— o o Back side Metalic 6/2437 80211 b 0.412 97.49% 100% 0.115 Omm New test data of LEO—BX9 at worst position with battery2 Non— Metalic 6/2437 80211 b 0.108 97.49% 100% 0411 Hightest — Mode T(I:;;'T:j)p Tl(j:fiv';p Reported Ad";s\;fi? )SAH SAR test SAR(Whkg) 9 802.11b 17.00 50.12 0.301 / Yes 802.119 13.00 19.95 / 0.120 No 802.1 in 20M 12.00 15.85 / 0.095 No Note: Per KDB248227001, for SAR test of WiFI 2.4G, 1} SAR is measured for 2.4 GHz 802.11b DSSS using the initlal test position procedure. 2) As the highest reported SAR for DSSS is adjusted by the ratio of OFDM 802.11g/n to DSSS specified maximum output power and the adjusted SAR is < 1.2 W/kg, so SAR for 802.11g/n is not required. Report No.: SYBH(Z—8AR)031032017—2 Huawel Propretary and GontiGential Page 30 of 34 Copyright © Huawei Technologies Co., Ltd

7.2.2 SAR measurement Result of BT Test Test SAR Value Pow Cond Tune- Report- SAR Position Wrist- channel Test (W/kg) er u-cted up ed 10-g Plot and band /Freq. Mode Drift Power Power SAR 1-g 10-g . Dist. (MHz) (dB) (dBm) (dBm) (W/kg) Original LEO-BX9 test data Non- Back 78/2480 DH5 0.119 0.050 0.13 15.75 17.00 0.066 / Metallic side 0mm New test data of LEO-BX9 at worst position with battery2 Non- 78/2480 DH5 0.111 0.049 -0.18 15.75 17.00 0.066 Yes Metallic Table 11: 10-g Extremity Exposure SAR test results of BT (4.0W/kg Limit) Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 31 of 34 Copyright © Huawei Technologies Co., Ltd

7.3 Multiple Transmitter Evaluation The following tables list information which is relevant for the decision if a simultaneous transmit evaluation is necessary according to FCC KDB 447498D01 General RF Exposure Guidance v06. The location of the antennas inside the device is shown as below picture: Note: 1) The NFC antenna does not have the transmitter function 2) WiFi and BT share the same antenna. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 32 of 34 Copyright © Huawei Technologies Co., Ltd

7.3.1 Stand-alone SAR test exclusion Per FCC KDB 447498D01v06: the 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for product specific 10-g SAR, where:  f(GHz) is the RF channel transmit frequency in GHz  Power and distance are rounded to the nearest mW and mm before calculation  The result is rounded to one decimal place for comparison When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. SAR Pmax Pmax Distance f Calculation SAR test Mode Position Exclusion (dBm)* (mW) (mm) (GHz) Result exclusion threshold WiFi Next to 17.00 50.12 10 2.480 7.89 3.00 No 2.4G mouth WiFi 10g 17.00 50.12 5 2.480 15.79 7.50 No 2.4G Extremity 10g BT 17.00 50.12 5 2.480 15.79 7.50 No Extremity Table 12: Standalone SAR test exclusion for WiFi 2.4G/BT Note: 1)* - maximum possible output power declared by manufacturer 7.3.2 Simultaneous Transmission Possibilities The device only has one Tx antenna. The device does not support simultaneous WiFi and BT, because they share the same antenna. So simultaneous Transmission SAR is not required. Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 33 of 34 Copyright © Huawei Technologies Co., Ltd

Appendix A. System Check Plots (Pls See Appendix No.: SYBH(Z-SAR)031032017-2A, total: 5 pages) Appendix B. SAR Measurement Plots (Pls See Appendix No.: SYBH(Z-SAR)031032017-2B, total: 4 pages) Appendix C. Calibration Certificate (Pls See Appendix No.: SYBH(Z-SAR)031032017-2C, total: 54 pages) Appendix D. Photo documentation (Pls See Appendix No.: SYBH(Z-SAR)031032017-2D, total: 3 pages) End Report No.: SYBH(Z-SAR)031032017-2 Huawei Proprietary and Confidential Page 34 of 34 Copyright © Huawei Technologies Co., Ltd


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Document Modified: 2017-10-25 00:57:29
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