2AC8UA2559Smart Watch

AnhuiHuamiInformationTechnologyCo.,Ltd. Date:2026/01/19 To:FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Ref:AttestationStatementsPart2.911(d)(5)(i)andPart2.911(d)(5)(ii)FilingRe.KDB986446D01 FCCID:2AC8UA2559 DearSirorMadam, [ AnhuiHuamiInformationTechnologyCo.,Ltd.](“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Wealsocertifythat,[AnhuiHuamiInformationTechnologyCo.,Ltd.](“theapplicant”)certifiesthat, asofthedateofthefilingoftheapplication,theapplicant[isnot]identifiedontheCoveredList (asaspecificallynamedentityoranyofitssubsidiariesoraffiliates)asanentityproducing “covered”equipment. Ifyouhaveanyquestions,pleasecontactus. Sincerely, Contactname:LloydWong Companyname:AnhuiHuamiInformationTechnologyCo.,Ltd. Address:Room401-1,BuildingH8,HefeiInnovationIndustrialParkPhaseII,No.2800,ChuangxinRoad, High-techZone,HefeiCity,AnhuiPilotFreeTradeZone,China E-mail:[email protected] Tel:+86-15345601722

AnhuiHuamiInformationTechnologyCo.,Ltd. Date(2026/01/19) TUVSUDBABTUNLIMITEDTCB OctagonHouse, SegensworthNorth, Fareham,Hampshire, PO155RL,UnitedKingdom ConfidentialityRequest FCCID:2AC8UA2559 PursuanttoSections0.457(d)(1)(ii)and0.459oftheCommission’sRules,AnhuiHuamiInformation TechnologyCo.,Ltd.herebyrequestspermanentconfidentialtreatmentofinformation accompanyingthisapplicationasoutlinedbelow: Schematics BillofMaterials/PartsList BlockDiagrams TheoryofOperation AnhuiHuamiInformationTechnologyCo.,Ltd.alsoherebyrequestsshort-termconfidentialtreatment ofinformationaccompanyingthisapplicationasoutlinedbelowforaperiodof180days: InternalPhotos ExternalPhotos UserManual TestSet-upPhotographs Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedtothe public.ThepublicdisclosureofthesemattersmightbeharmfultotheApplicantandprovide unjustifiedbenefitstoitscompetitors. TheApplicantunderstandsthatpursuanttoRule0.457(d)(1)(ii),disclosureofthisApplicationandall accompanyingmaterialswillnotbemadebeforethedateoftheGrantforthisApplication. Yourssincerely, CompanyOfficer:AnhuiHuamiInformationTechnologyCo.,Ltd. TelephoneNumber:+86-15345601722 Email:[email protected]

AnhuiHuamiInformationTechnologyCo.,Ltd. Date:2026/01/19 To:FederalCommunicationsCommission 7435OaklandMillsRoad ColumbiaMD FCCID:2AC8UA2559 ToWhomItMayConcern: ThisletteristoascertainthatAnhuiHuamiInformationTechnologyCo.,Ltd. Productname:HybridActiveNoiseCancelingheadphones Model:A2559 hasbeentheunitsusedforconductingFCCcompliancetesting,theSDoCpartwillbetestedbyFCC recognizedtestlab. Ifyouhaveanyquestionorconcerns,pleasecontactus. Sincerely, Contactname:LloydWong Companyname:AnhuiHuamiInformationTechnologyCo.,Ltd. Address:Room401-1,BuildingH8,HefeiInnovationIndustrialParkPhaseII,No.2800,ChuangxinRoad, High-techZone,HefeiCity,AnhuiPilotFreeTradeZone,China E-mail:[email protected] Tel:+86-15345601722

HIDF19000259 ENERGY VERIFIED CSA C 381.2 B0039 PAP 21 Raccolta separata POF 7 PlasticaCarta *Please note that battery life may vary based on product model and usage. For details, refer to the product documentation. **Paid Subscription Service 217-252924 R-R-hM6-A2559 XXXXXXXXXX-V1.1 XX Model Name: A2559 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC ID: 2AC8UA2559 IC: 21806-A2559 Manufactured by: Anhui Huami Information Technology Co., Ltd. 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 Version Bluetooth : V5.3 Compatible avec : Android 7.0, iOS 15.0 ou versions ultérieures Inclus : Corps de montre, Bracelet de montre, Disque de chargement, Manuel d'instructions Cet appareil est conforme à la partie 15 des règles FCC. Son fonctionnement est soumis aux deux conditions suivantes : (1) Cet appareil ne doit pas provoquer d'interférences nuisibles (2) Cet appareil doit accepter toutes les interférences reçues, y compris les interférences susceptibles de provoquer un fonctionnement indésirable. FCC ID: 2AC8UA2559 IC: 21806-A2559 Fabriqué par : Anhui Huami Information Technology Co., Ltd. Adresse : 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 Versión de Bluetooth: V5.3 Compatible con: Android 7.0, iOS 15.0 o superior Incluye: Cuerpo del reloj, Correa del reloj, Base de carga, Manual de instrucciones Versione Bluetooth: V5.3 Compatibile con: Android 7.0, iOS 15.0 o versioni successive Incluso: Corpo del orologio, Cinturino dell'orologio, Disco di ricarica, Manuale d'uso Bluetooth-Version: V5.3 Kompatibel mit: Android 7.0, iOS 15.0 oder höher Inklusive: Uhrenkörper, Uhrarmband, Ladepad, Bedienungsanleitung Versão do Bluetooth: V5.3 Compatível com: Android 7.0, iOS 15.0 ou posterior Inclui: Corpo do relógio, Pulseira do relógio, Base de carregamento, Manual de instruções Версия Bluetooth: V5.3 Совместимость: Android 7.0, iOS 15.0 или более поздняя версия В комплекте: Тело часов, ремешок для часов, зарядная подставка, инструкция по эксплуатации Bluetooth バージョン: V�.� 互換性: Android �.�, iOS ��.� 以上 内容物：時計本体、時計バンド、充電用パッド、取扱説明書 블루투스�버전: V�.� 호환성: Android �.�, iOS ��.� 또는�이상 포함�사항: 시계�본체, 시계�밴드, 충전�패드, 사용�설명서 특정소출력�무선기기(무선데이터통신시스템용�무선기기) 撕拉线无需印刷 切刀线 除胶区 箭头图标印刷 50% PANTONE Black C 50% PANTONE Black C HIDF19000259 ENERGY VERIFIED CSA C 381.2 B0039 PAP 21 Raccolta separata POF 7 PlasticaCarta *Please note that battery life may vary based on product model and usage. For details, refer to the product documentation. **Paid Subscription Service 217-252686 R-R-hM6-A2557 XXXXXXXXXX-V1.2 XX Model Name: A2559 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC ID: 2AC8UA2559 IC: 21806-A2559 Manufactured by: Anhui Huami Information Technology Co., Ltd. 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 Version Bluetooth : V5.3 Compatible avec : Android 7.0, iOS 15.0 ou versions ultérieures Inclus : Corps de montre, Bracelet de montre, Disque de chargement, Manuel d'instructions Cet appareil est conforme à la partie 15 des règles FCC. Son fonctionnement est soumis aux deux conditions suivantes : (1) Cet appareil ne doit pas provoquer d'interférences nuisibles (2) Cet appareil doit accepter toutes les interférences reçues, y compris les interférences susceptibles de provoquer un fonctionnement indésirable. FCC ID: 2AC8UA2559 IC: 21806-A2559 Fabriqué par : Anhui Huami Information Technology Co., Ltd. Adresse : 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 Versión de Bluetooth: V5.3 Compatible con: Android 7.0, iOS 15.0 o superior Incluye: Cuerpo del reloj, Correa del reloj, Base de carga, Manual de instrucciones Versione Bluetooth: V5.3 Compatibile con: Android 7.0, iOS 15.0 o versioni successive Incluso: Corpo del orologio, Cinturino dell'orologio, Disco di ricarica, Manuale d'uso Bluetooth-Version: V5.3 Kompatibel mit: Android 7.0, iOS 15.0 oder höher Inklusive: Uhrenkörper, Uhrarmband, Ladepad, Bedienungsanleitung Versão do Bluetooth: V5.3 Compatível com: Android 7.0, iOS 15.0 ou posterior Inclui: Corpo do relógio, Pulseira do relógio, Base de carregamento, Manual de instruções Версия Bluetooth: V5.3 Совместимость: Android 7.0, iOS 15.0 или более поздняя версия В комплекте: Тело часов, ремешок для часов, зарядная подставка, инструкция по эксплуатации Bluetooth バージョン: V�.� 互換性: Android �.�, iOS ��.� 以上 内容物：時計本体、時計バンド、充電用パッド、取扱説明書 블루투스�버전: V�.� 호환성: Android �.�, iOS ��.� 또는�이상 포함�사항: 시계�본체, 시계�밴드, 충전�패드, 사용�설명서 특정소출력�무선기기(무선데이터통신시스템용�무선기기) UPC: 850071618761 6972596109624 AMAZFIT ACTIVE MAX Product Name: Smart Watch Production Date: 11/2025 Made in China Quality Certified Color: Black SN: AAAABCDDXXXXXX 选择正确的 方向图标拖 动到图纸里 纹理方向 色相正确、印迹牢固、 套印准确、各色套印不露杂色， 套印误差≤ 0.1mm 模切走位≤±0.5mm 图纸编号 名称 版本号 时间设计师 时间审核 时间审批 材质工艺要求 材质要求： 制作工序： 工艺要求： 颜色及专色： 纹理要求： 比例单位 mm1:1 安徽华米信息科技有限公司 50＃普莱曼斯，过亚油 1专色印刷：PANTONE Black C 可撕拉产品信息贴：88*117mm 粘贴示意图： 除胶区 R=3MM R=1 MM The Zepp App connects your training, recovery, and daily movement into one rhythm. Designed for deeper recovery and restorative rest.** Guidance that helps you move better, train with clarity, and recover well. A movement-centered system supporting your daily training rhythm.* Zepp Hea…

Text truncated - open the document above for the full version.

CALIBRATIONDATA PROBECALIBRATION DATA DIPOLECALIBRATIONDATA

Page1of38 SARTestReport ReportNo.:AGC01662251203FH01 FCCID: 2AC8UA2559 APPLICATIONPURPOSE: OriginalEquipment PRODUCTDESIGNATION: SmartWatch BRANDNAME: AMAZFIT MODELNAME: A2559 APPLICANT: AnhuiHuamiInformationTechnologyCo.,Ltd. DATEOFISSUE: Jan.15,2026 STANDARD(S): IEEEStd.1528:2013 FCC47CFRPart2§2.1093 IEEEStdC95.1™-2019 REPORTVERSION: V1.0 AttestationofGlobalCompliance(Shenzhen)Co.,Ltd. ReportNo.:AGC01662251203FH01 Page 2 of 38 ReportReviseRecord ReportVersionReviseTimeIssuedDateValidVersionNotes V1.0/Jan.15,2026ValidInitialRelease ReportNo.:AGC01662251203FH01 Page 3 of 38 TestReport ApplicantNameAnhuiHuamiInformationTechnologyCo.,Ltd. ApplicantAddress Room401-1,BuildingH8,HefeiInnovationIndustrialParkPhaseII,No.2800, ChuangxinRoad,High-techZone,PilotFreeTradeZone,Hefei,Anhui,China ManufacturerNameAnhuiHuamiInformationTechnologyCo.,Ltd. ManufacturerAddress Room401-1,BuildingH8,HefeiInnovationIndustrialParkPhaseII,No.2800, ChuangxinRoad,High-techZone,PilotFreeTradeZone,Hefei,Anhui,China FactoryName1#HuzhouLuxsharePrecisionIndustryCo.,Ltd FactoryAddress1# No.399,ShengxunRoad,ZhiliTown,WuxingDistrict,HuzhouCity,Zhejiang Province,China FactoryName2#LUXSHARE-ICT(NGHEAN)LIMITED FactoryAddress2# No.18,Street03,VSlPNgheAnIndustrialPark,HungTayCommune,Hung NguyenDistrict,NgheAnProvince,Vietnam ProductDesignationSmartWatch BrandNameAMAZFIT ModelNameA2559 SeriesmodelsN/A DifferentDescription N/A EUTVoltageDC3.91Vbybattery ApplicableStandard IEEEStd.1528:2013 FCC47CFRPart2§2.1093 IEEEStdC95.1™-2019 DateofreceiptoftestitemDec.24,2025 TestDateDec.29,2025 ReportTemplateAGCRT-US-2.4GHzBT/SAR(2021-04-20) Note:Theresultsoftestinginthisreportapplytotheproduct/systemwhichwastestedonly. PreparedBy CiciLi(ProjectEngineer)Jan.15,2026 ReviewedBy JackGui(Reviewer)Jan.15,2026 ApprovedBy AngelaLi(AuthorizedOfficer)Jan.15,2026 ReportNo.:AGC01662251203FH01 Page 4 of 38 TABLEOFCONTENTS 1.SUMMARYOFMAXIMUMSARVALUE...........................................................................................................5 2.GENERALINFORMATION................................................................................................................................6 2.1.EUTDESCRIPTION..........................................................................................................................................6 3.SARMEASUREMENTSYSTEM.........................................................................................................................7 3.1.THESATIMOSYSTEMUSEDFORPERFORMINGCOMPLIANCETESTSCONSISTSOFFOLLOWINGITEMS..................7 3.2.COMOSARE-FIELDPROBE...........................................................................................................................8 3.3.ROBOT...........................................................................................................................................................8 3.4.VIDEOPOSITIONINGSYSTEM...........................................................................................................................9 3.5.DEVICEHOLDER..............................................................................................................................................9 3.6.SAMTWINPHANTOM....................................................................................................................................10 4.SARMEASUREMENTPROCEDURE...............................................................................................................11 4.1.SPECIFICABSORPTIONRATE(SAR)...............................................................................................................11 4.2.SARMEASUREMENTPROCEDURE.................................................................................................................12 4.3.RFEXPOSURECONDITIONS..........................................................................................................................14 5.TISSUESIMULATINGLIQUID..........................................................................................................................16 5.1.THECOMPOSITIONOFTHETISSUESIMULATINGLIQUID.....................................................................................16 5.2.TISSUEDIELECTRICPARAMETERSFORHEADANDBODYPHANTOMS...............................................................16 5.3.TISSUECALIBRATIONRESULT.........................................................................................................................17 6.SARSYSTEMCHECKPROCEDURE.............................................................................................................18 6.1.SARSYSTEMCHECKPROCEDURES..............................................................................................................18 6.2.SARSYSTEMCHECK....................................................................................................................................19 7.EUTTESTPOSITION.......................................................................................................................................21 7.1.TESTPOSITION.............................................................................................................................................21 8.SAREXPOSURELIMITS.................................................................................................................................22 9.TESTFACILITY................................................................................................................................................23 10.TESTEQUIPMENTLIST................................................................................................................................24 11.MEASUREMENTUNCERTAINTY..................................................................................................................25 12.CONDUCTEDPOWERMEASUREMENT......................................................................................................28 13.TESTRESULTS........................…

Text truncated - open the document above for the full version.

ReportNo.:AGC01662251203FR02 Page41of62 Test_Graph_LE2M_ANT1_2402_2Mbps_LowerBandEmissions Test_Graph_LE2M_ANT1_2402_2Mbps_HigherBandEmissions ReportNo.:AGC01662251203FR02 Page42of62 Test_Graph_LE2M_ANT1_2440_2Mbps_ReferenceLevel Test_Graph_LE2M_ANT1_2440_2Mbps_LowerBandEmissions ReportNo.:AGC01662251203FR02 Page43of62 Test_Graph_LE2M_ANT1_2440_2Mbps_HigherBandEmissions Test_Graph_LE2M_ANT1_2480_2Mbps_ReferenceLevel ReportNo.:AGC01662251203FR02 Page44of62 Test_Graph_LE2M_ANT1_2480_2Mbps_LowerBandEmissions Test_Graph_LE2M_ANT1_2480_2Mbps_HigherBandEmissions ReportNo.:AGC01662251203FR02 Page45of62 TestGraphsofBandEdgeEmissionsinNon-RestrictedFrequencyBands Test_Graph_LE1M_ANT1_2402_1Mbps_LowerBandEdgeEmissions Test_Graph_LE1M_ANT1_2480_1Mbps_HigherBandEdgeEmissions ReportNo.:AGC01662251203FR02 Page46of62 Test_Graph_LE2M_ANT1_2402_2Mbps_LowerBandEdgeEmissions Test_Graph_LE2M_ANT1_2480_2Mbps_HigherBandEdgeEmissions ReportNo.:AGC01662251203FR02 Page47of62 11.RadiatedSpuriousEmission 11.1MeasurementLimit  FCCPart15.209Limitinthebelowtabletobefollowed Frequencies (MHz) FieldStrength (microvolts/meter) MeasurementDistance (meters) 0.009~0.4902400/F(kHz)300 0.490~1.70524000/F(kHz)30 1.705~30.03030 30~881003 88~2161503 216~9602003 Above9605003 Note:Allmodesweretestedforrestrictedbandradiatedemission,thetestrecordsreportedbelowaretheworst resultcomparedtoothermodes. 11.2MeasurementProcedure 1.TheEUTwasplacedonthetopoftheturntable0.8or1.5meteraboveground.Thephasecenterofthe receivingantennamountedonthetopofaheight-variableantennatowerwasplaced3metersfaraway fromtheturntable. 2.PowerontheEUTandallthesupportingunits.Theturntablewasrotatedby360degreestodeterminethe positionofthehighestradiation. 3.Theheightofthebroadbandreceivingantennawasvariedbetweenonemeterandfourmetersabove groundtofindthemaximumemissionsfieldstrengthofbothhorizontalandverticalpolarization. 4.Foreachsuspectedemission,theantennatowerwasscan(from1Mto4M)andthentheturntablewas rotated(from0degreeto360degrees)tofindthemaximumreading. 5.Setthetest-receiversystemtoPeakorCISPRquasi-peakDetectFunctionwithspecifiedbandwidthunder MaximumHoldMode. 6.Foremissionsabove1GHz,use1MHzRBWand3MHzVBWforpeakreading.Placethemeasurement antennaawayfromeachareaoftheEUTdeterminedtobeasourceofemissionsatthespecified measurementdistance,whilekeepingthemeasurementantennaaimedatthesourceofemissionsateach frequencyofsignificantemissions,withpolarizationorientedformaximumresponse.Themeasurement antennamayhavetobehigherorlowerthantheEUT,dependingontheradiationpatternoftheemission andstayingaimedattheemissionsourceforreceivingthemaximumsignal.Thefinalmeasurement antennaelevationshallbethatwhichmaximizestheemissions.Themeasurementantennaelevationfor maximumemissionsshallberestrictedtoarangeofheightsoffrom1mto4mabovethegroundor referencegroundplane. 7.Whentheradiatedemissionslimitsareexpressedintermsoftheaveragevalueoftheemissions,and pulsedoperationisemployed,themeasurementfieldstrengthshallbedeterminedbyaveragingoverone completepulsetrain,includingblankingintervals,aslongasthepulsetraindoesnotexceed0.1seconds. ReportNo.:AGC01662251203FR02 Page48of62 8.Asanalternative(providedthetransmitteroperatesforlongerthan0.1seconds)orincaseswherethe pulsetrainexceeds0.1seconds,themeasuredfieldstrengthshallbedeterminedfromtheaverage absolutevoltageduringa0.1secondintervalduringwhichthefieldstrengthisatitsmaximumvalues. 9.IftheemissionsleveloftheEUTinpeakmodewas3dBlowerthantheaveragelimitspecified,then testingwillbestoppedandpeakvaluesofEUTwillbereported,otherwise,theemissionswhichdonot have3dBmarginwillberepeatedonebyoneusingthequasi-peakmethodforbelow1GHz. 10.Fortestingabove1GHz,theemissionsleveloftheEUTinpeakmodewaslowerthanaveragelimit(that meanstheemissionslevelinpeakmodealsocomplieswiththelimitinaveragemode),thentestingwillbe stoppedandpeakvaluesofEUTwillbereported,otherwise,theemissionswillbemeasuredinaverage modeagainandreported. 11.Incasetheemissionislowerthan30MHz,loopantennahastobeusedformeasurementandtherecorded datashouldbeQPmeasuredbyreceiver.High-Lowscanisnotrequiredinthiscase. Thefollowingtableisthesettingofspectrumanalyzerandreceiver. SpectrumParameterSetting Start~StopFrequency9kHz~150kHz/RB200HzforQP Start~StopFrequency150kHz~30MHz/RB9kHzforQP Start~StopFrequency30MHz~1000MHz/RB120kHzforQP Start~StopFrequency 1GHz~26.5GHz 1MHz/3MHzforPeak,1MHz/3MHzforAverage ReceiverParameterSetting Start~StopFrequency9kHz~150kHz/RB200HzforQP Start~StopFrequency150kHz~30MHz/RB9kHzforQP Start~StopFrequency30MHz~1000MHz/RB120kHzforQP ReportNo.:AGC01662251203FR02 Page49of62 Quasi-PeakMeasurementsbelow1GHz 1.Analyzercenterfrequencywassettothefrequencyoftheradiatedspuriousemissionofinterest 2.Spanwassetgreaterthan1MHz 3.RBW=asshowninthetableabove 4.Detector=CISPRquasi-peak 5.Sweeptime=autocouple 6.Tracewasallowedtostabilize PeakMeasurementsabove1GHz 1.Analyzercenterfrequencywassettothefrequencyoftheradiatedspuriousemissionofinterest 2.RBW=1MHz 3.VBW=3MHz 4.Detector=peak 5.Sweeptime=autocouple 6.Tracemode=maxhold 7.Tracewasallowedtostabilize AverageMeasurementsabove1GHz 1.Analyzercenterfrequencywassettothefrequencyoftheradiatedspuriousemissionofinterest 2.RBW=1MHz 3.VBW≥[3×RBW] 4.Detector=Poweraveraging(rms) 5.Averagingtype=power(i.e.,rms) 6.Sweeptime=auto 7.Performatraceaverageofatleast100traces. 8.Theapplicablecorrectionfactoris[10*log(1/D)],whereDisthedutycycle.Thefactorhadbeeneditedin the“InputCorrection”oftheSpectrumAnalyzer. ReportNo.:AGC01662251203FR02 Page50of62 11.3MeasurementSetup(BlockDiagramofConfiguration) RadiatedEmissionTestSetup9kHz-30MHz RadiatedEmissionTestSetup30MHz-1000MHz RadiatedEmissionTestSetupAbove1000MHz ReportNo.:AGC01662251203FR02 Page51of62 11.4MeasurementResult RadiatedEmissionBelow30MHz Theamplitudeofspuriousemissionsfrom9kHzto30MHzwhichareattenuatedmorethan20dBbelowthe permissiblevalueneednotbereported. RadiatedEmissionTestResultsat30MHz-1GHz EUTNameSmartWatchModelNameA2559 Temperature17.5°CRelativeHumidity46.1% Pressure985MbarTestVoltageDC3.91Vby…

Text truncated - open the document above for the full version.

Antenna specifications Electrical Characteristics Description Model: Cologne BT antenna Antenna information: Antenna Name Model(s)/Type(s) RF Antenna Assembly Model/Part Number: Cologne BT Manufacturer: Anhui Huami Information Technology Co., Ltd. Address: Room 401-1, Building H8, Hefei Innovation Industrial Park Phase II, No.2800, Chuangxin Road, High-tech Zone, Hefei City, Anhui Pilot Free Trade Zone, China Frequency Range: 2400 MHz-2500 MHz Connector Type/ Maximum Gain -5.67dBi Antenna Type/ Pattern: metal antenna Antenna Size 表圈：C=137.87mm 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) Fig. 4 antenna radiation pattern diagram

Page 1 of 62 FCCTestReport ReportNo.:AGC01662251203FR02 FCCID: 2AC8UA2559 APPLICATIONPURPOSE: OriginalEquipment PRODUCTDESIGNATION:SmartWatch BRANDNAME:AMAZFIT MODELNAME:A2559 APPLICANT:AnhuiHuamiInformationTechnologyCo.,Ltd. DATEOFISSUE:Jan.15,2026 STANDARD(S):FCCPart15SubpartC§15.247 REPORTVERSION:V1.0 AttestationOfGlobalCompliance(Shenzhen)Co.,Ltd ReportNo.:AGC01662251203FR02 Page2of62 ReportReviseRecord ReportVersionReviseTimeIssuedDateValidVersionNotes V1.0/Jan.15,2026ValidInitialRelease ReportNo.:AGC01662251203FR02 Page3of62 TableofContents 1.GeneralInformation..........................................................................................................................................5 2.ProductInformation..........................................................................................................................................6 2.1ProductTechnicalDescription....................................................................................................................6 2.2TestFrequencyList.....................................................................................................................................6 2.3RelatedSubmittal(S)/Grant(S).................................................................................................................7 2.4TestMethodology........................................................................................................................................7 2.5SpecialAccessories....................................................................................................................................7 2.6EquipmentModifications.............................................................................................................................7 2.7AntennaRequirement.................................................................................................................................7 3.TestEnvironment..............................................................................................................................................8 3.1AddressoftheTestLaboratory...................................................................................................................8 3.2TestFacility..................................................................................................................................................8 3.3EnvironmentalConditions...........................................................................................................................9 3.4MeasurementUncertainty...........................................................................................................................9 3.5ListofEquipmentUse...............................................................................................................................10 4.SystemTestConfiguration.............................................................................................................................12 4.1EUTConfiguration....................................................................................................................................12 4.2EUTExercise............................................................................................................................................12 4.3ConfigurationofTestedSystem................................................................................................................12 4.4EquipmentUsedInTestedSystem..........................................................................................................13 4.5SummaryofTestResults..........................................................................................................................14 5.DescriptionofTestModes.............................................................................................................................15 6.DutyCycleMeasurement...............................................................................................................................16 7.RFOutputPowerMeasurement....................................................................................................................17 7.1ProvisionsApplicable................................................................................................................................17 7.2MeasurementProcedure..........................................................................................................................17 7.3MeasurementSetup(BlockDiagramofConfiguration)...........................................................................17 7.4MeasurementResult.................................................................................................................................18 8.6dBBandwidthMeasurement.......................................................................................................................22 8.1ProvisionsApplicable................................................................................................................................22 8.2MeasurementProcedure..........................................................................................................................22 8.3MeasurementSetup(BlockDiagramofConfiguration)...........................................................................22 8.4MeasurementResults...............................................................................................................................23 9.PowerSpectralDensityMeasurement.........................................................................................................30 9.1ProvisionsApplicable................................................................................................................................30 9.2MeasurementProcedure..........................................................................................................................30 9.3MeasurementSetup(BlockDiagramofConfiguration…

Text truncated - open the document above for the full version.