"Samsung introduces rugged watch band and key reassignment for Galaxy Watch models"
Samsung Galaxy Watch users running Wear OS can reassign the physical side home and back buttons to fit a variety of functions. The home key has two functions, "double-pressing" and "pressing and holding," which can be reassigned individually. The back key's "short press" command can also be reassigned. Users can customize the commands to launch apps, go to recent apps, or access Bixby or Google Assistant.