One smartwatch come with three wristband, silicone, leather belt and steel belt, meet the wearing needs of all occasions. Major function: All metal, ultra-thin and ultra-light body, 3D dynamic watch face, Bluetooth call, blood oxygen, heart rate, mood, stress, sleep (support sporadic naps), breathing training, step counting, 150 sports modes, calorie consumption, raise your hand to turn on the screen, alarm clock, call, text message, WeChat message, QQ, stopwatch, music control, remote control photography, flashlight, weather, world time, APP movement track, 30 languages, Bluetooth one-key connection, screen clock Model: H16 Screen: 1.75 inch AMOLED 466*466 Full screen touch Charging: Magnetic charging Battery: 280mAh Lithium Polymer Bluetooth: BT5.3 Support system: Android 5.0 and above, IOS 9.0 and above, supporting Bluetooth 5.0 FLASH memory: 256Mb Band size: Circular diameter 51.4mm, curved cover plate thickness 7.3mm Waterproof: IP68 Message reminder language: Text display