Display: 1.43" AMOLED 466*466 Full Touch, Narrow-BezelHigh S2B Ratio SoC: RTL8773EWE-VP, 128Mb, v5.3 Battery: 300mAh Standby Time: 30 days Working Time: 12 days Waterproof IP68 Activity Modes 25 Cloud Watch Faces: 200+ Charging Type: Wireless Charging Features & Functions: 2.5D UI, Contacts, Digital Crown, Al Faces, Bluetooth Call, Heart Rate, Pedometer, SPO2, Pressure, Sleep, Breath, Female Menstruation, One-Click Smart Health Check Android 8.0 or iOS 9.0 or above, support BLE Rear Case: Plastic, IML Middle Chassis: Zinc alloy Free three Straps: UV Improved Silicone/magnetic Silicone/Leather, Width=22mm