Why Should I Get a GPS Watch? A GPS watch, such as the Suunto 9 Fitness Watch , has the same navigational features as any GPS, as well as options for ascent/descent rates, a mileage logbook, a stopwatch, and a countdown timer. But... GPS Outdoor garmin garmin gps garmin gps. good gps watch what makes a good gps what makes a good gps watch Oct 14, 2020