2AUIU-WWTCH1Wyze Watch 44

S20100901702 Model: WWTCH1 ATTACHMENT PHOTOGRAPHS OF EUT Photo 1 Photo 2 S20100901702 Model: WWTCH1 Photo 3 Photo 4 S20100901702 Model: WWTCH1 Photo 5 Photo 6 S20100901702 Model: WWTCH1 Photo 7

E-label The product will use an E-label , and the product is small leaving no space for the permanent labeling directly on the device. The label is easily accessed on the Wyze Watch 44 as shown in the figures below: (1) If the device is not paired. swipe up the screen and tap into Regulatory page for FCC/IC information (2) If the device is already paired: tap into Settings page, select Regulatory, for FCC/IC information

S20100901702 Model: WWTCH1 Photo 1 Photo 2 S20100901702 Model: WWTCH1 Photo 3 Photo 4 S20100901702 Model: WWTCH1 Photo 5 Photo 6 BT ANT S20100901702 Model: WWTCH1 Photo 7 Photo 8

version01 Wyze Labs, Inc. Declaration concerning Antenna Specification It is hereby declared that the product Model No.: WWTCH1 FCC ID: 2AUIU-WWTCH1 fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for internal antenna type(s) described below: Model No. of antenna: N/A Type of antenna: PCB Antenna (1/4 wave antenna) built into the housing) WIFI: Gain of the antenna: 2 dBi Frequency range: 2402 to 2480 MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: Wyze Labs, Inc. Address: 3933 Lake Washington Blvd NE Suite 350 City: Kirkland Washington ZIP / Postal code: Country: United States Place: Kirkland Date: 16/11/2020 Name: Dongsheng Song Signature:

FCC ID: 2AUIU-WWTCH1 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 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 10-g extremity 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. BR+EDR: Antenna Type: PIFA Antenna Antenna Gain: 2dBi Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n 1g SAR Exclusion threshold SAR test exclusion 2.402-0.610.869 -1±12.01.585<50.491273.00YES 2.441-1.780.664 -1±12.01.585<50.495243.00YES 2.480-1.990.632 -1±12.01.585<50.499183.00YES GFSK Conclusion: For the max result : 0.49918≤ 3.0 for 1-g SAR, No SAR is required. Signature: Date: 2020-11-18 NAME AND TITLE (Please print or type): Alex /Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China

Report No.: S20100901702002 Version.1.3 Page 1 of 61 RADIO TEST REPORT FCC ID: 2AUIU-WWTCH1 Product: Wyze Watch 44 Trade Mark: N/A Model No.: WWTCH1 Family Model: N/A Report No.: S20100901702002 Issue Date: 18 Jan. 2021 Prepared for Wyze Labs, Inc. 3933 Lake Washington Blvd NE Suite 350, Kirkland, WA 98033 Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China Tel. 400-800-6106, 0755-3699 5508 Website: http://www.ntek.org.cn Report No.: S20100901702002 Version.1.3 Page 2 of 61 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 SUMMARY OF TEST RESULTS ......................................................................................................................... 4 3 FACILITIES AND ACCREDITATIONS ............................................................................................................. 5 3.1 FACILITIES..................................................................................................................................................... 5 3.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 5 3.3 MEASUREMENT UNCERTAINTY ............................................................................................................... 5 4 GENERAL DESCRIPTION OF EUT .................................................................................................................. 6 5 DESCRIPTION OF TEST MODES ..................................................................................................................... 8 6 SETUP OF EQUIPMENT UNDER TEST ........................................................................................................... 9 6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ....................................................................... 9 6.2 SUPPORT EQUIPMENT............................................................................................................................... 10 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS .............................................................................................. 11 7 TEST REQUIREMENTS .................................................................................................................................... 13 7.1 CONDUCTED EMISSIONS TEST ............................................................................................................... 13 7.2 RADIATED SPURIOUS EMISSION ............................................................................................................ 16 7.3 6DB BANDWIDTH ....................................................................................................................................... 25 7.4 DUTY CYCLE ............................................................................................................................................... 26 7.5 PEAK OUTPUT POWER .............................................................................................................................. 28 7.6 POWER SPECTRAL DENSITY ................................................................................................................... 29 7.7 CONDUCTED BAND EDGE MEASUREMENT......................................................................................... 31 7.8 SPURIOUS RF CONDUCTED EMISSIONS................................................................................................ 32 7.9 ANTENNA APPLICATION .......................................................................................................................... 33 8 TEST RESULTS ................................................................................................................................................... 34 1M .................................................................................................................................................................................. 34 2M .................................................................................................................................................................................. 48 Report No.: S20100901702002 Version.1.3 Page 3 of 61 1 TEST RESULT CERTIFICATION Applicant’s name ......................... : Wyze Labs, Inc. Address ....................................... : 3933 Lake Washington Blvd NE Suite 350, Kirkland, WA 98033 Manufacturer's Name .................. : Wyze Labs, Inc. Address ....................................... : 3933 Lake Washington Blvd NE Suite 350, Kirkland, WA 98033 Product description Product name .............................. : Wyze Watch 44 Model and/or type reference ..... : WWTCH1 Family Model ............................... : N/A Measurement Procedure Used: APPLICABLE STANDARDS APPLICABLE STANDARD/ TEST PROCEDURE TEST RESULT FCC 47 CFR Part 2, Subpart J FCC 47 CFR Part 15, Subpart C ANSI C63.10-2013 KDB 558074 D01 15.247 Meas Guidance v05r02 Complied This device described above has been tested by Shenzhen NTEK Testing Technology Co., Ltd., and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of Shenzhen NTEK Testing Technology Co., Ltd., this document may be altered or revised by Shenzhen NTEK Testing Technology Co., Ltd., personnel only, and shall be noted in the revision of the document. The test results of this report relate only to the tested sample identified in this report. Date of Test : 09 Oct. 2020 ~ 23 Oct, 2020 Testing Engineer : (Mary Hu) Technical Manager : (Jason Chen) Authorized Signatory : (Alex Li) Report No.: S20100901702002 Version.1.3 Page 4 of 61 2…

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FCC ID: 2AUIU-WWTCH1 Radiated Measurement Photos FCC ID: 2AUIU-WWTCH1 Conducted Measurement Photos