GPS running watches represent a step up from fitness trackers: In addition to step counts and distance measurements, GPS watches offer a slew of advanced training metrics.Since 2014, we’ve put 39 watches through the paces by taking hundreds of heart-rate readings and wearing the watches for long and short runs on trails and on tracks (as well as in races).We’ve found that the reliable Coros Pace 3—with its speedy GPS acquisition and excellent battery life—is the best choice for most runners.If you want more smartwatch-like features than the Pace 3 provides, we’ve found that the Garmin Forerunner 165 and Garmin Forerunner 165 Music offer the best overall value in the Garmin lineup. The Forerunner 45 is a solid, pared-down option for beginners.