System requirements android5.0+/ios10.0+Main control chip Hs6621Hand ring memory 128MCall Bluetooth AB5376A2Bluetooth version 5.2Heart rate chip SC7R30Screen display 1.92inch-ID frameless full screen 420 * 480 resolutionBattery capacity 360mAHStandby time 75 daysUse time is about 10 daysKey mode full-screen touchMotor cake motorCharging interface wireless chargingWaterproof grade IP68Sensor G-sensor 3-axisLocal dial 10+Dial market 50+Menu Style 3APP WearFit proIntelligent split screen display of dial marketOff screen time setting 3D dynamic dialScan code connection bracelet language switchCustom component password lock screenVoice call social cardAlipay Pay MetOffline collection voice assistantHealth positioning short video controlStep music playbackExercise mode breathing trainingRaise your hand and light the screen to measure the whole pointSleep monitoring heart rateCall to remind blood pressureMessage reminding blood oxygenSedentary reminder calculatorAlarm clock reminder custom dialStopwatch Health WeeklyFind the brightness adjustment of the braceletDial switch weather