Galaxy AI features track data and require compatible Samsung Galaxy phone, Samsung Health app and Samsung Account. Available for outdoor running and cycling only. Must follow the same starting point and path as a workout selected from up to 14 days prior. The heart rate software functions are not intended for medical use. Requires compatible smartphone. Must wear device for 7 nights during a 30 night period. The Sleep Apnea Feature is an over-the-counter (OTC) software-only, mobile medical application operating on a compatible Samsung Galaxy Watch and phone. This feature is intended to detect signs of moderate to severe obstructive sleep apnea in the form of significant breathing disruptions in adult users 22 years and older, over a two-night monitoring period. It is intended for on-demand use. This feature is not intended for users who have previously been diagnosed with sleep apnea. Users should not use this feature to replace traditional methods of diagnosis and treatment by a qualified clinician. The data provided by this device is also not intended to assist clinicians in diagnosing sleep disorders. Tracks data and requires compatible Samsung Galaxy phone, and Samsung Account. Select interchangeable watch bands sold separately. Requires compatible smartphone.