The SAS 75 activity sensor is with you every step of the way. It couldnt be easier to record the distance covered and number of steps, as well as calculate the calorie consumption and activity duration. The recorded data can be transmitted to the free HealthCoach app. During sleep, the device also records the sleep motion activity and sleep duration. Activity evaluation every step counts Sleep tracking sleep analysis Bluetooth® Smart for transmitting data to your smartphone available from January Records activity and sleep and transmits the data to your smartphone Activity tracking: number of steps, distance, calorie consumption, activity duration and achievement of daily activity goals Sleep tracking: tracks sleep movements and sleep duration on the time display Synchronises the data with the free HealthCoach app Extremely comfortable to wear Alarm function: vibration alarm OLED XL display Li-ion batteries splash-proof (splashes/perspiration) Included in delivery: activity sensor wrist band and USB charging cable