Chipset: RTL8762C, Bluetooth Version: BT 5.0, Compatible OS: Android 6.0 or above; iOS 11.0 or above, Operating Mode: Full Touch Screen, APP Name: Haylou Fun, Watch Language: Chinese, English, Korean, German, Italian, Japanese, Portuguese, Spanish (follow the phone language), Waterproof: IP68, Sensor: Motion Sensor, Heart Rate Sensor, Blood Oxygen Sensor. Screen Size: 1.69 inch, Screen Type: TFT, Screen Resolution: 240*280, Battery Capacity: 220mAh.