- Model: I8 Pro Max Smart Watch Case: AlloyStrap: SiliconeCharging Mode: Magnetic Suction ChargingMain Screen: 1.75 High-Definition ScreenBluetooth: Support Bluetooth call MusicBT:4.2+5.0 Dual-ModeBattery: 300mAh Lithium Ion Battery, Longer Battery Life StandbyTime: About 30 DaysUse Time: About 7-10 DaysVibration Motor: SupportSide key: Knob buttonwaterproof Grade: IP68