I108 smartwatch, high-definition screen, Bluetooth call, smart sports wristband, true blood oxygen, IP68 waterproof

Parameter List:Main chip: RTL8763EWE (Android 5.0 and above, iOS 8.0)FLASH： 128MBluetooth: BLE5.2/BT5.2Acceleration sensor: STK8321Display screen: 1.57TFT, resolution 240 * 286Touch: Full touch COF, Hai Li Chuang 816D chipSpeaker: Impedance of 8 ohms, maximum 1W MAXMIC (microphone): Supports (sensitivity 42DB+/-3DB)Motor: voltage range 1.3V-2.8V, starting voltage 1.3V MAX, rated voltage: 1.8V)Heart rate chip: Tianyi Hexin 3602Battery: Rated voltage 3.7V, charging cut-off voltage 4.35V, 230mAhCharging management: Typical charging current of 120mACharger specification: DC 5V (current ≥ 0.5A is sufficient) Maximum input withstand voltage 6.5V