From watches to chest straps, a heart rate monitor can optimize your workouts. Polar, Garmin, and Fitbit top our list. See what else we’re wearing to run, swim, cycle, and more. Heart rate monitors ...
Most fitness trackers offer a wealth of heart-rate data. Here’s how to make sense of it. By Talya Minsberg If you wear a smartwatch or fitness tracker, you likely already have access to a steady ...