Product Type Smart BraceletSize 258mm 34 7mm 11 3mmWeight 36 5gDisplay Display size 1 33inchResolution 240 240Capacity 180mAHMaterial Top cover tempered glassBody zinc alloy bottom shell ABS PCStrap SiliconePackage Included 1 x D13 Smart Watch Dial USB direct plug no charger needed 1 x Original strap1 x User ManualHardware ParameterCPU type Hs6620DHeart rate EM7028RAM random access memory SRAM 128kb SFlash Read Only Memory Flash 1MAcceleration sensor G sensor 3 axisBluetooth BT antennaCharger interface contact typeAndroid version 4 4 or higherApple version 8 4 or higherDetails DescriptionSoftware features time display sports mode raised hand screen sleep monitoring running track call reminder message reminder sedentary reminder alarm reminder do not disturb mode shake a photo find bracelet dial switch dial Chinese and English hourly measurement WeChat campaign heart rate blood pressure blood oxygen apple health health weekly Bluetooth name languageCharging method USB chargingOTA upgrade supportWaterproof rating IP67