5. Reebok inTouch Heart Rate Monitor
Strap on the Reebok inTouch Heart Rate Monitor to keep track of just how hard you’re working while you go the distance–no chest strap required. All you have to do is touch the screen to get an update on your heart rate and calories burned, while the Fit Zone Indicator feature keeps you on a perfect pace. And unlike many clunky fitness trackers, this version is sleek enough to wear as an everyday watch.