2ARO3-WWATCHSmartwacth

User Manual WOLKI Smartwatch WW1.57 Please read this manual carefully before using the product and keep it properly product description Packing list: Smartwatch (including strap) X 1, magnetic charging cable X 1, product manual X 1 Product overview Knob button Full touch display Buttons and touch Knob button Swipe right: Split screen function 1. Long press the switch; 2. Short press on the dial page to enter the menu, short press to return to the dial; 3. Double-click on the menu page to switch menus; 4. Rotate the button to zoom icons, turn pages, etc.; 5. Short press on the remaining pages to return to the dial page; Heart rate sensor Charging port Down: shortcut button Sliding left: Smart components Swipe up: message notification Connect the watch Open permissions Enable self-starting permission Background power consumption protection Clean up background protection Turn on message notification Scan code to download Weatfit PRO 1. Download the "Wearfit Pro" APP to your mobile phone and install it, you candirectly search for "Wearfit Pro" in the APP store to download, or scan the followingQR code to jump to the link to download (scan code in browsers, WeChat, etc.) 2. Connect the watch 1) Scan code connection: After the watch is turned on and enter the dial page, slide right to enter the split screen function, click the "scan code connection" shortcutbutton,the connection QR code will pop up, and you can directly scan the code connectioninWearfit Pro. 2) Manual connection: After the mobile phone turns on Bluetooth, enter theAPP to directly search for the device to manually connect. 3) Connect and call Bluetooth In the initial state of the watch, the Bluetooth for calls is turned off, and the call and music functions cannot be used at this time. Scroll down to open the shortcut menu, and click the call Bluetooth switch. After turning it on, you can find the call Bluetoothin the mobile phone system (when the mobile phone Bluetooth is turned on), find the corresponding Bluetooth name, and click connect. After successful connection, you can use the callfunction and music function. Watch operating instructions 1.Split screen function: Swipe right to appear on the dial page, slide leftto return. 2. Swipe left on the dial page to enter smart components. The system presets3 components. Click "Add component" at the right end to add components, up to5 components. Long press the component to enter the "Delete component" page. 3. Dial switching: Long press the screen on the dial page, the dial selection appears, select the corresponding dial and return to the main dial page. Note: The system presets five dial pages, and the last dial is named "Custom". This dial will change with the dial market on the APP side and the download settings of the custom dial. 4. Menu page: On the dial page, single press the side key to enter the menu page, after entering the menu page, double press the side key to switch between menus, and single press the side key to return to the main dial page. 5. Function page: In the menu page, click each application icon to enter the corresponding function, slide right to return, and press the side button toreturnto the main dial page. Features Contacts: Connect to the mobile phone to synchronize contacts on the mobile phone and set emergency contacts; phone Dial-up: connect to the mobile phone to dial out, and you can call on the watchside Call record: Connect the mobile phone to synchronize the call record of themobile phone; Exercise Record the exercise data of the day, including: calories, activity time, number record of activities, steps and distance. Sleep Check your sleep status every night Put the watch close to your wrist, and the best place to wear it is the wrist bone above your arm. The real-time heart rate Heart can be measured. The normal value of the average person is 60-90 beats/min.The watch records the last 7 measurement records, and records the highest and lowest values. rate blood Put the watch close to your wrist, and the best place to wear it is on the upperarm of the wrist bone. Blood pressure can be measured. The watch records the last 7 measurement records. pressure Blood Put the watch close to your wrist, and the best wearing position is on the wrist bone and above the arm. The blood oxygen value can be measured. The watch recordsthe oxygen last 7 measurement records and records the highest and lowest values. Indoor It includes 6 regular sports including indoor running, indoor cycling, pool activities swimming, sit-ups, push-ups, and free training. Includes 7 sports such as outdoor running, outdoor cycling, open water, sit-ups, Outdoor hiking, mountaineering, and other sports; 5 major sports data are recordedduring exercise: steps, calories, heart rate, cadence, pace, and can be set Sportsgoals,a sports comprehensive breakdown of your sports details. Breathing training can quickly relax oneself, relieve stress and quicklyreplenish Breath oxygen to the body. Three frequency options are provided: slow, normal, and slightly training faster; breathing time options: 1~5min. Music Connect APP to control music playback. control the Connect to the APP to synchronize the weather. weather Stopwatch The watch supports stopwatch timing. Timer The watch turns into a timer every second. The watch realizes the function of Mett, converts all daily exercise volume into Mett value and Mett displays it on the watch and APP, records the energy metabolism equivalentof one week of exercise, and forms a visual icon to let users clearly understand their exercise volume. The watch supports continuous pressure monitoring, monitors the user's 24 -hour pressure pressure changes, and uses scientific health algorithms to display the pressure as an icon, allowing users to adjust their status at any time. The pressure rangeshows: 1-29 relaxed; 30-59 normal; 60-79 medium; 80-99 high. Including brightness settings, constant on time, often off screen, phone settings, raise the Set up wris…

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Worldwidetelecomlimited 2FBlockCShenFangbuildingzhenhualufutiandist,Shenzhen,China --------------------------------------------------------------------------------------------------------------------- Date:2021-05-19 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 FCCID:2ARO3-WWATCH ConfidentialityRequest Towhomitmayconcern, PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestconfidential treatmentoftheinformationaccompanyingthisapplicationasoutlinedbelow: ☒BlockDiagram☐Tune-UpInformation ☒ OperationalDescription ☐ SecurityInformation ☒Schematics☐SoftwareDefinedRadio(SDR)Information ☒PartsList Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedto thepublic.Thepublicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovide unjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthis applicationandallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrantfor thisapplication. Sincerely, Worldwidetelecomlimited ------------------------------- (EdgarAguilarMendoza) (ProjectDirector)

Worldwidetelecomlimited 2FBlockCShenFangbuildingzhenhualufutiandist,Shenzhen,China. -------------------------------------------------------------------------------- (FCCID ： 2ARO3-WWATCH) POWEROFATTORNEY DATE:2021-05-19 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 ToWhomItMayConcern: We,theundersigned,herebyauthorizeWaltekTestingGroup(Shenzhen)Co.,Ltd. JandySoonourbehalf,toapplytotheFederalCommunicationsCommissiononour equipment.AnyandallactscarriedoutbyWaltekTestingGroup(Shenzhen)Co., Ltd.JandySoonourbehalfshallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct. We,Worldwidetelecomlimitedarenotsubjecttoadenialoffederalbenefits pursuanttoSection5301oftheAnti-DrugActof1988,21USC853a,andnoparty totheapplicationissubjecttoadenialoffederalbenefitspursuanttothat section. Sincerely, Worldwidetelecomlimited ------------------------- (EdgarAguilarMendoza) (ProjectDirector)

Reference No.: WTX21X05042528W-1 Page 2 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2 Reference No.: WTX21X05042528W-1 Page 3 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 3 EUT View 4 Reference No.: WTX21X05042528W-1 Page 4 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 5 EUT View 6 Reference No.: WTX21X05042528W-1 Page 5 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 7 EUT View 8 Reference No.: WTX21X05042528W-1 Page 6 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 9

Reference No.: WTX21X05042528W-1 Page 1 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT 1 - PRODUCT LABELING Proposed FCC ID Label Format FCC ID: 2ARO3-WWATCH Specifications: The label shall be securely affixed to a permanently attached part of the device, in a location where it is visible or easily accessible to the user, and shall not be readily detachable. The label shall be sufficiently durable to remain fully legible and intact on the device in all normal conditions of use throughout the device’s expected lifetime. Proposed Label Location on EUT FCC ID Label Location

Reference No.: WTX21X05042528W-1 Page 7 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 EUT Housing and Board View 2 Reference No.: WTX21X05042528W-1 Page 8 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 1 Solder Board-Component View 2 Reference No.: WTX21X05042528W-1 Page 9 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Antenna View

RF Exposure Requirements Product Description: Smartwacth Model No.: WW1.57 FCC ID: 2ARO3-WWATCH According to the KDB 447498 D01 v06 section 4.3.1, for 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 Calculation Result: Tx frequency range: 2402-2480MHz Min. test separation distance: 5mm Maximum Conducted Output Power: 1.098dBm Tune-Up output power: 2dBm RF channel transmit frequency: 2480MHz Result: 0.5 Limit: 3.0 The exclusion thresholds is 0.5 < 3, so the transmitter complies with the RF exposure requirements and the SAR is not required.

Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 55 TEST REPORT Reference No. .................... : WTX21X05042528W-1 FCC ID ................................ : 2ARO3-WWATCH Applicant ........................... : Worldwide telecom limited Address.............................. : 2F Block C; Shenfang Building, Zhen Hualu, Futian, Shenzhen. Product Name ................... : Smartwacth Test Model. ........................ : WW1.57 Standards .......................... : FCC Part 15.247 Date of Receipt sample .... : May.06, 2021 Date of Test........................ : May.06, 2021 to May.17, 2021 Date of Issue ..................... : May.17, 2021 Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Tested by: Reviewed By: Approved & Authorized By: Jason Su / Project Engineer Lion Cai / RF Manager Silin Chen / Manager Reference No.: WTX21X05042528W-1 Page 2 of 55 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ...............................................................................4 1.2 TEST STANDARDS ...................................................................................................................................................5 1.3 TEST METHODOLOGY .............................................................................................................................................5 1.4 TEST FACILITY .......................................................................................................................................................5 1.5 EUT SETUP AND TEST MODE .................................................................................................................................6 1.6 MEASUREMENT UNCERTAINTY ..............................................................................................................................7 1.7 TEST EQUIPMENT LIST AND DETAILS .....................................................................................................................8 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 10 3. ANTENNA REQUIREMENT ................................................................................................................................ 11 3.1 STANDARD APPLICABLE ....................................................................................................................................... 11 3.2 EVALUATION INFORMATION................................................................................................................................. 11 4. POWER SPECTRAL DENSITY ........................................................................................................................... 12 4.1 STANDARD APPLICABLE ....................................................................................................................................... 12 4.2 TEST SETUP BLOCK DIAGRAM ............................................................................................................................. 12 4.3 TEST PROCEDURE ................................................................................................................................................. 12 4.4 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 12 5. DTS BANDWIDTH ................................................................................................................................................. 13 5.1 STANDARD APPLICABLE ....................................................................................................................................... 13 5.2 TEST SETUP BLOCK DIAGRAM ............................................................................................................................. 13 5.3 TEST PROCEDURE ................................................................................................................................................. 13 5.4 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 13 6. RF OUTPUT POWER ............................................................................................................................................ 14 6.1 STANDARD APPLICABLE ....................................................................................................................................... 14 6.2 TEST SETUP BLOCK DIAGRAM ............................................................................................................................. 14 6.3 TEST PROCEDURE ................................................................................................................................................. 14 6.4 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 14 7. FIELD STRENGTH OF SPURIOUS EMISSIONS ............................................................................................. 15 7.1 STANDARD APPLICABLE ........................…

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Reference No.: WTX21X05042528W-1 Page 10 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 4 - TEST SETUP PHOTOGRAPHS Conducted Emission Test Setup Radiation Emission Test Setup (Below 30MHz) Reference No.: WTX21X05042528W-1 Page 11 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Radiation Emission Test Setup (30MHz to 1GHz) Radiation Emission Test Setup (1GHz to 18GHz) Reference No.: WTX21X05042528W-1 Page 12 of 12 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Radiation Emission Test Setup (Above 18GHz) ***** END OF REPORT *****