Track workouts, heart rate, distance, calories burned, floors climbed, active minutes and steps.Automatically track your sleep quality and wake up peacefully with a silent alarm.See call notifications, daily stats and time of Day on the OLED display.Sync stats wirelessly and automatically to your computer and over 150 leading Smartphones.Charge normally lasts about 5 days and will take 1-2 hours to charge.Charge HR is sweat, rain and splash proof. However, the device is not swim proof or showerproof.