2AC8UA2671Smart sensor

FCCCOVEREDLISTDECLARATIONLETTER Page1of1Revision1.0 SGSNorthAmericaInc. 620OldPeachtreeRoad SUITE100 Suwanee,Georgia30024 UnitedStates ApplicantLegalBusinessNameAnhuiHuamiInformationTechnologyCo.,Ltd. Address Room401-1,BuildingH8,HefeiInnovationIndustrialParkPhaseII,No.2800,ChuangxinRoad,High-techZone, HefeiCity,China(Anhui)PilotFreeTradeZone FRN0029752243 GranteeCode2AC8UFCCID:2AC8UA2671 AuthorizedContactNameLloydWong [email protected] AnhuiHuamiInformationTechnologyCo.,Ltd.(“theapplicant”)certifies: -theequipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuantto section2.903oftheFCCrules. -asofthedateofthefilingoftheapplication,theapplicant[isnot]identifiedontheCoveredlist,establishedpursuantto§1.50002,asanentity producing“covered”equipment. -thesoftwaretobeloadedpriortomarketingoftheequipmentidentifiedaboveisnot“covered”softwaremanufacturedbyanyentityincluding predecessors,successors,parents,subsidiaries,affiliatesoranyentitywhichhasrebrandedorrelabeledthesoftwareproducedbytheentity(ies) identifiedonthe“CoveredList”. -thedeviceisnotcapableofstoringorrunningsoftwarelistedonthecoveredlistandthereforeisinherentlycompliant. NOTE:Justification/evidenceexplaininghowcomplianceismetmustaccompanythisletter LinktotheCoveredList:CoveredList ApplicantSignature:Date:2026-05-12 PrintName:LloydWong Title:Director *NOTE:ThisdeclarationcannotbesignedbyanAgent,itshallbesignedbyanauthorizedpersonlistedintheFCCdatabase

ApplicantDeclaration QSF27-14-04Rev1.4April25,2025Page1of1OriginalIssue:Jan.4,2021 SGSNorthAmericaInc. 620OldPeachtreeRoad SUITE100 Suwanee,Georgia30024 UnitedStates ApplicantLegalBusinessName AnhuiHuamiInformationTechnologyCo.,Ltd. Address Room401-1,BuildingH8,HefeiInnovationIndustrialParkPhaseII,No.2800,ChuangxinRoad, High-techZone,HefeiCity,China(Anhui)PilotFreeTradeZone FRN 0029752243 GranteeCode 2AC8U FCCID: 2AC8UA2671 AuthorizedContactName LloydWong ContactPhone +86-15345601722 ContactEmail [email protected] I,theundersigned,certifythatIamanauthorizedsignatoryfortheApplicantandthereforedeclare; a)inaccordancewith47CFR2.911(d),allofthestatementshereinandtheexhibitsattachedheretoaretrueandcorrecttothebestofmy knowledgeandbelief. b)inacceptingaGrantofEquipmentAuthorizationissuedbyaTCB,undertheauthorityoftheFCC,asaresultoftherepresentationsmadein thisapplication,theApplicantisresponsiblefor: (1)labelingtheequipmentwiththeexactFCCIDasspecifiedinthisapplication, (2)compliancestatementlabelingpursuanttotheapplicablerules, (3)complianceoftheequipmentwiththeapplicabletechnicalrules, c)iftheApplicantisnottheactualmanufactureroftheequipment,appropriatearrangementshavebeenmadewiththemanufacturertoensure thatproductionunitsofthisequipmentwillcontinuetocomplywiththeFCC’stechnicalrequirements. d)inaccordancewith47CFR2.909andKDB394321,theApplicanthasread,understoodandagreestoacceptthattheyaretheresponsible partyandagreetoabidebytheirresponsibilitiesasspecifiedunder47CFR2.909andKDB394321. e)inaccordancewithISO17065,FCCKDB641163,FCCKDB610077,KDB394321andRSP-100,theApplicanthasread,understood,accepts andagreestoabidebythepostmarketsurveillancerequirements. (1)theApplicantunderstands,acceptsandagreesthatasamplemayberequestedforsurveillancetesting. (2)theApplicantshallmakeprovisionstoalwayshaveaproductionsampleavailableuponrequestbySGS,FCCand/orISED. (3)theApplicantshall,uponrequestbySGS,attheApplicant’sexpense,provideaproductionsampleoftherequestedproducttoSGS, FCCand/orISEDasinstructed.Thesampleshallincludeallsupportdevices,cables,software,accessoriesorotherhardwareor softwarerequiredforevaluation,review,certificationandauditsurveillanceofproductscertifiedbySGS. f)neithertheApplicantnoranypartytotheapplicationissubjecttoadenialofFederalbenefits,thatincludesFCCbenefits,pursuanttoSection 5301oftheAnti-DrugAbuseActof1988,21U.S.C.§862becauseofaconvictionforpossessionordistributionofacontrolledsubstance.See 47CFR1.2002(b)forthedefinitionofa“party”forthesepurposes. g)theApplicanthasread,understood,acceptsandagreestoabidebytheSGSNorthAmerica,Inc.termsandconditionsasspecifiedintheTCB ApplicationForm731(QSF27-14-01). LinktoCFRs:https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 LinktoKDBs:https://apps.fcc.gov/oetcf/kdb/index.cfm LinktoRSP-100:https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html LinktotheCoveredList:CoveredList ApplicantSignature:Date:2026-05-12 PrintName:LloydWong Title:Director *NOTE:ThisdeclarationcannotbesignedbyanAgent,itshallbesignedbyanauthorizedpersonlistedintheFCCdatabase

Anhui Huami Information Technology Co.,Ltd. Current Date 2026-05-15 To: SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. No. 588 West Jindu Road, Songjiang District, Shanghai, China. 201612 Dear Sir/Madam, Subject: Declaration Letter about Identity of Products *WE Anhui Huami Information Technology Co.,Ltd., HEREBY DECLARED THAT Product Description: Smart sensor Model No.: A2671 Manufacturer’s Name: Anhui Huami Information Technology Co.,Ltd. Manufacturer’s Address: Room 401-1, Building H8, Hefei Innovation Industrial Park Phase II, No.2800, Chuangxin Road, High-tech Zone, Hefei City, China (Anhui) Pilot Free Trade Zone *Except that the differences were the model name and A2671 (without heart rate monitoring), model A2672 (with heart rate monitoring) deviation, are identical with the original product as follows: Note: The definition of identical should be “electrically identical”. A device will be considered to be electrically identical if no changes are made to the devices’ schematics, board layouts, component layouts, chip sets, resistors and all other electrical aspects of the device are identical with the model which has been tested by SGS. Model No.: A2672 Manufacturer’s Name: Anhui Huami Information Technology Co.,Ltd. Manufacturer’s Address: Room 401-1, Building H8, Hefei Innovation Industrial Park Phase II, No.2800, Chuangxin Road, High-tech Zone, Hefei City, China (Anhui) Pilot Free Trade Zone Sincerely, Signature: Printed Name : Lloyd Wong Position/Title : Senior Certification Manager Contact Number: +86-15345601722

AnhuiHuamiInformationTechnologyCo.,Ltd. Date:2026/05/12 TO:FederalCommunicationCommission EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MID21046 Regarding:FCCID:2AC8UA2671 Towhomitmayconcern: We,theundersigned,herebyauthorizeParlamZhantoactonourbehalfinallmannersrelatingto applicationforequipmentauthorizationwithrespecttotheFCCIDabove,includingsigningofall documentsrelatingtothesematters.Anyandallactscarriedoutbytheagentonourbehalfshallhave thesameeffectasactsofourown. We,theundersigned,herebycertifythatwearenotsubjecttoadenialoffederalbenefits,thatincludes FCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21U.S.C.853(a). Whereouragentsignstheapplicationforcertificationonourbehalf,Iacknowledgethatallresponsibility forcomplyingwiththetermsandconditionsforCertification,asspecifiedbySGSNorthAmerica,Inc.,still resideswithAnhuiHuamiInformationTechnologyCo.,Ltd. Thisauthorizationisvaliduntilfurtherwrittennoticefromtheapplicant. Name(Printed):LloydWongTitle:Director Signature: OnbehalfofCompany:AnhuiHuamiInformationTechnologyCo.,Ltd. Telephone:+86-15345601722

An hui Huami Inform atio n Technolo gy Co.,Ltd. 2026-0 5-1 2 To: SGS Nort h Am eric a Inc. 620 Old Pe achtre e Road SU ITE 100 Su wanee, Ge org ia Unit ed St ates Fro m: An hui Huami Inform atio n Technolo gy Co.,Ltd. Room 401-1 , Bu ild ing H8, Hefei Innovatio n Industria l Pa rk Ph ase II, No.2800, Chuangxin Road, Hig h-t ech Zone, Hefei Cit y, Chin a (An hui) Pilo t Fre e Tra de Zone Regard in g: Confid entia lit y Request re gard in g applicatio n forFCC ID: 2AC8UA2671 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. SHORT TERM CONFIDENTIALITY Additionally, the applicant requests the following documents be held confidential until the device is marketed or 180 days from the grant date, whichever is less. If the device is marketed within 180 days of the Grant Date, the applicant will notify the TCB per FCC KDB 726920 D01 Confidentiality Request Procedures. External Photos Internal Photos Test Setup Photos User manual(s) Sin cere ly, Sig nature : Prin ted Name: Llo yd Wong Title: Dire ctor Company Name: An hui Huami Inform atio n Technolo gy Co.,Ltd.

Report No.: SUCR260400033302 Page: 1 of 9 This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 30 days only. Attention: To check the authenticity of testing / inspection report & certificate, please contact us at telephone:(86-755) 8307 1443, or email: [email protected] 1 Cover Page RF Exposure Evaluation Report Application No.: SUCR2604000333AT FCC ID: 2AC8UA2671 Applicant: Anhui Huami Information Technology Co., Ltd. Address of Applicant: Room 401-1, Building H8, Hefei Innovation Industrial Park Phase II, No.2800, Chuangxin Road, High-tech Zone, Hefei City, China (Anhui) Pilot Free Trade Zone Manufacturer: Anhui Huami Information Technology Co., Ltd. Address of Manufacturer: Room 401-1, Building H8, Hefei Innovation Industrial Park Phase II, No.2800, Chuangxin Road, High-tech Zone, Hefei City, China (Anhui) Pilot Free Trade Zone Equipment Under Test (EUT): EUT Name: Smart sensor Model No.: A2671,A2672 Trade Mark AMAZFIT Standard(s) : FCC Rules 47 CFR §2.1093 KDB 447498 D04 interim General RF Exposure Guidance v01 Date of Receipt: 2026-04-09 Date of Test: 2026-04-30 to 2026-05-06 Date of Issue: 2026-05-06 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. Report No.: SUCR260400033302 Page: 2 of 9 Revision Record Version Description Date Remark 00 Original 2026-05-06 / Authorized for issue by: Tested By Nature Shen/Project Engineer Approved By Cedar Cheng/Reviewer Report No.: SUCR260400033302 Page: 3 of 9 2 Contents Page 1 Cover Page ........................................................................................................................................ 1 2 Contents ............................................................................................................................................ 3 3 General Information .......................................................................................................................... 4 3.1 General Description of E.U.T. .................................................................................................... 4 3.2 Details of E.U.T. ......................................................................................................................... 4 3.3 Test Location ............................................................................................................................ 5 3.4 Test Facility ............................................................................................................................... 5 4 FCC Radiofrequency radiation exposure limits ............................................................................ 6 4.1 Blanket 1 mW Blanket Exemption .............................................................................................. 6 4.2 MPE-based Exemption .............................................................................................................. 6 4.3 SAR-based Exemption ............................................................................................................... 7 5 Measurement and Calculation ......................................................................................................... 9 5.1 Maximum transmit power ........................................................................................................... 9 5.1 RF Exposure Calculation ........................................................................................................... 9 Report No.: SUCR260400033302 Page: 4 of 9 3 General Information 3.1 General Description of E.U.T. Power supply: Rechargeable Li-ion Battery Battery model: PL431924 Rated Capacity: 230mAh/0.90Wh Nominal Voltage: 3.87V Limited Charge Voltage: 4.45V Product Type: Portable device Mobile device Fixed device 3.2 Details of E.U.T. Operation Frequency: 2402MHz to 2480MHz Modulation Type: GFSK Number of Channels: 40 Channel Spacing: 2MHz Antenna Type: FPC Antenna Antenna Gain: -7.55dBi (Provided by the manufacturer) Report No.: SUCR260400033302 Page: 5 of 9 3.3 Test Location All tests were performed at: SGS-CSTC Standards Technical Services (Suzhou) Co., Ltd. South of No. 6 Plant, No. 1, Runsheng Road, Suzhou Industrial Park, Suzhou Area, China (Jiangsu) Pilot Free Trade Zone No tests were sub-contracted. Note: 1.SGS is not responsible for wrong test results due to incorrect information (e.g., max. internal working frequency, antenna gain, cable loss, etc) is provided by the applicant. (If applicable). 2.SGS is not responsible for the authenticity, integrity and the validity of the conclusion based on results of the data provided by applicant. (If applicable). 3. Sample source: sent by customer. 3.4 Test Facility The test facility is recognized, certified, or accredited by the following organizations: • A2LA (Certi…

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Report No.: SUCR260400033301 Page: 1 of 88 This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 30 days only. Attention: To check the authenticity of testing / inspection report & certificate, please contact us at telephone:(86-755) 8307 1443, or email: [email protected] TEST REPORT Application No.: SUCR2604000333AT FCC ID: 2AC8UA2671 Applicant: Anhui Huami Information Technology Co., Ltd. Address of Applicant: Room 401-1, Building H8, Hefei Innovation Industrial Park Phase II, No.2800, Chuangxin Road, High-tech Zone, Hefei City, China (Anhui) Pilot Free Trade Zone Manufacturer: Anhui Huami Information Technology Co., Ltd. Address of Manufacturer: Room 401-1, Building H8, Hefei Innovation Industrial Park Phase II, No.2800, Chuangxin Road, High-tech Zone, Hefei City, China (Anhui) Pilot Free Trade Zone Equipment Under Test (EUT): EUT Name: Smart sensor Model No.: A2671,A2672   Please refer to section 2 of this report which indicates which model was actually tested and which were electrically identical. Trade Mark: AMAZFIT Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2026-04-09 Date of Test: 2026-04-30 to 2026-05-06 Date of Issue: 2026-05-06 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. Report No.: SUCR260400033301 Page: 2 of 88 Revision Record Version Description Date Remark 00 Original 2026-05-06 / Authorized for issue by: Tested By Nature Shen/Project Engineer Approved By Cedar Cheng/Reviewer Report No.: SUCR260400033301 Page: 3 of 88 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Emissions at AC Power Line (150kHz-30MHz) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2020) Section 6.2 47 CFR Part 15, Subpart C 15.207 Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2020) Section 6.10.5 & 11.12 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2020) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Above 1GHz ANSI C63.10 (2020) Section 6.6 & 11.12 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Maximum Conducted Output Power ANSI C63.10 (2020) Section 11.9.1 47 CFR Part 15, Subpart C 15.247(b)(3) Pass Minimum 6dB Bandwidth ANSI C63.10 (2020) Section 11.8.1 47 CFR Part 15, Subpart C 15.247a(2) Pass Power Spectral Density ANSI C63.10 (2020) Section 11.10.2 47 CFR Part 15, Subpart C 15.247(e) Pass Conducted Band Edges Measurement ANSI C63.10 (2020) Section 6.10.4 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2020) Section 11.11 47 CFR Part 15, Subpart C 15.247(d) Pass Declaration of EUT Family Grouping: Note: There are series models mentioned in this report, and they are identical in electrical and electronic characters. Only the model A2672 was tested since their differences were the model name and A2671 (without heart rate monitoring), model A2672 (with heart rate monitoring). Report No.: SUCR260400033301 Page: 4 of 88 3 Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2 Test Summary ......................................................................................................................................... 3 3 Contents ................................................................................................................................................... 4 4 General Information ................................................................................................................................ 5 4.1 Details of E.U.T. ............................................................................................................................... 5 4.2 Power level setting using in test ....................................................................................................... 5 4.3 Description of Support Units ............................................................................................................ 5 4.4 Measurement Uncertainty & Decision Rule ..................................................................................... 6 4.5 Test Location .................................................................................................................................... 7 4.6 Test Facility ...................................................................................................................................... 7 4.7 Deviation from Standards .......................…

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Antenna specifications Electrical Characteristics Description Model: Slutigart BLE antenna Transmitter Frequency: 2400MHz-2483.5MHz Receiver Frequency: 2400MHz-2483.5MHz Antenna information: Antenna Name Model(s)/Type(s) RF Antenna Assembly Model/Part Number: Toulouse BLE Manufacturer: Anhui Huami Information Technology Co., Ltd. Frequency Range: 2400MHz-2483.5MHz Type/Connector Maximum Gain -7.55dBi Type/Antenna Pattern: FPC antenna Antenna Size 19.0*4.30mm Measurement: See below Dimensions Dimensions See Fig.1 . Fig. 1 Antenna Dimensions（示例） Electrical Performance S11 parameter test result as Fig.2. Table 1 shows the emission efficiency and the maximum gain of the antenna at different frequencies changes. The antenna radiation pattern diagram show in Fig.3. Table 1Max. Gain and Efficiency Vs. Frequency(Free space) 2 Fig. 4 antenna radiation pattern diagram 2