Activity tracker, wireless multifunctional watch BT 5.3, 1.83"" TFT touchscreen, 180 mAh battery, wireless rechargeable, cable included, functions: heart rate monitor, blood pressure monitor, blood oxygen monitor, calories counter, BT, music player, sleep monitor, weather, vibration, phone book, APP notify, calls and messages notify, stopwatch, time and date, alarm, anti-lost function, camera remote, torch