System Software 21.25 offers over 20 updates and bug fixes for Fenix, Enduro and Tactix watches ...

From circadian rhythm tracking to mixed workouts, the update brings meaningful upgrades across fitness and health ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Software update 16.28 ...