Modern aluminum design with robust sapphire glass Versatile functions for a conscious lifestyle Exact tracking & coaching functions (sleep coaching1, BIA analysis2 and women's calendar) Google Wear OS for access to a broad app ecosystem Very short charging time thanks to fast charging function Water-resistant up to 5 ATM3 The device dimensions do not include the BioActive Sensor. The specified weight refers only to the housing without taking into account the wristbands. The actual device dimensions or the actual weight are slightly higher. 1 The sleep analysis (recording of REM sleep phases, deep sleep phases and total sleep duration) can be used with your smartwatch without an additional device. A paired smartphone is required to access the sleep log and sleep recommendations or to use snoring detection. 2 The BIA analysis is for fitness and wellness purposes only. It is not intended to detect, diagnose or treat any disease or physical condition, nor is it intended to prevent, monitor, treat or mitigate any disease or compensate for any injury or disability or for any other medical purpose. If you are concerned about your health, consult a doctor. The feature is not intended for users under the age of 20 or over the age of 80, or if you are pregnant or have a pacemaker or other medical device. For best results, always take measurements at the same time of day on an empty stomach. 3 Provides water protection up to 5 ATM according to ISO standard 22810. Not suitable for activities such as jumping into the pool, scuba diving, water skiing or similar water activities at high speed and/or activities in deep water.