•[Fine Workmanship] Made of stainless steel, with a modern matte and glossy surface treatment process, it is not only stylish in appearance but also wear-resistant and corrosion-resistant•[Motion Sensing Game] Built-in motion gaming features accessible through the app, please wear the ring and move your fingers. The game follows the action•[Rate Rate Monitoring] Monitor your heart rate anywhere and anytime; open the app to view the heart rate data on the ring at any given time•[Sleep Monitoring] The ring automatically monitors your sleep quality when you fall asleep and generates a sleep report to help you develop good sleep habits•[Exercise Data] Accurately recording steps, calorie expenditure, distance, etc. Supporting your multiple exercise modesSpecifications:HardwareCPUPixart 2860MaterialStainless steelBluetooth VersionBLE 5.1Battery capacityPolymer lithium battery 18 mAh with battery protection IC, charging case 280 mAhWorking TimeAbout 5-7daysCharing time0.5HG SensorQMA6100PHeart Rate SensorHX3605Charging methodCharging caseWaterproof LevelIP68Charging RequirementCharging 1A or lessSoftwareAPPECTRIFunctionHeart rate detectionBlood oxygen testblood pressure detectionRemote photographyMultiple sport modesGesture control (Tiktok photograph e-book music)Somatosensory gamesSleep detection (Sleep time, Sleep quality)Step countSynchronous data to APK/APPAPP DownloadDownload "ECTRI" from Android market or for Apple storeScan the following QR code and download "ECTRI"SpecificationSystem RequirementAndroid: 6.0 or aboveiOS: 11.0 or higherEnvironmental requirementsOperating temperature: 0~45℃Storage temperature: -10~55℃Working humidity: 5%~95% (non-condensing)Size(mm)8 circumference 56.9, diameter 18.19 circumference 59.5, diameter 18.910 circumference 62.1, diameter 19.811 circumference 64.6, diameter 20.6Package included:•1 x Smart Ring•1 x Charging Cable•1 x Charging Case•1 x English User Manual