Specification: Product Name: X7 Smart WatchMaster Chip: HS6620+FRScreen Display: 1.44 InchProduct Size: 44*38*10.8mmBody Material: Alloy body + IML bottom shellStrap Material: SiliconeCharging Type: Wireless ChargingBattery Capacity: 200mAhWaterproof Level: IP67APP: FitProFunctions:Heart rate monitoring,Blood pressure monitoring.Pedometer, sport mode data collection. Sleep monitoring.Bluetooth 4.0 sedentary reminder. Alarm clock, Stopwatch.Bluetooth call function ,bluetooth smartphone APP connection information push.Two-tone strap free match. APP support above Android 4.4 and IOS8. Support Multi languages.