Track your light/deep sleep, your workouts, and your daily steps See your calories burned, steps taken, distance, and your average pace/speed Quartz Movement Case Diameter: 17.9mm Water Resistant To 10m (33ft): in General, Withstands Splashes and Rain, but not Immersion 3d accelerometer, distance, average pace/speed, step counter, calories burned, sleep pattern tracking, fitness goal tracking Vibration alerts, wake up alert, move time, time/date LED display, popper plate closure, rechargeable battery Quartz Movement Case Diameter: 15.2mm Not Water Resistant