Published July 7, 2011 12:00AM

Garmin Forerunner 610 watch
With a simple tap of the screen, the Garmin Forerunner 610 watch—its first touchscreen GPS model—switches between a mileage counter and a virtual racing partner (you can race friends or yourself). Also cool: the mile-marker alert vibrates instead of just beeping, as its predecessor did, so you won’t miss a benchmark even when you’re rocking out.