Catering to pavement pounders, this watch tracks interval workouts based on every parameter you'd want (pace, altitude). Its heart-rate monitor is incredibly accurate, and testers loved its programmable nutrition alarms, which, when set, reminded them to eat and hydrate at the appropriate times. But it's tough to tweak midrun, and its GPS was spotty at best. [$275; timex.com]
The 2014 Adventure Issue
From Iceland's Highway 1 to Utah's Canyonlands, an epic itinerary for modern explorers.
Plus: Building a Bigger Action Hero
ON NEWSSTANDS NOW
Duke Lacrosse and the Fog of Scandal
How Thailand's Most Notorious Prison Became a Fight Club
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