Using the activity sensor AS 80, users can record all their activities, day and night. The product has been designed as a wristband and impresses with its high quality, design and functionality. Two tracking functions are available: The activity tracking records the number of steps and the distance. It tracks the duration of the activity, the calorie consumption and the achievement of the daily activity goals. The sleep tracking records the sleep movements and the sleep duration. Via Bluetooth Smart technology, all data is transferred to the Beurer HealthManager App. The memory capacity of the AS 80 itself is 30 days and seven lights. The perfectly readable OLED XL display presents all information clearly and easy to understand and creates a clear contrast between the black backlight and the white illumination of the information. The manufacturing with black plastic and its own weight of only 16 grams make the AS 80 an elegant everyday companion. The activity sensor AS 80 works with a Lithium-Ion battery and is splash-proof.