those days Getting a heart rate reading only when you visit your doctor is a thing of the past. You don’t even have to spend big bucks or leave your house to know your heart rate during exercise or while you’re at rest.
The advent of optical sensors and EKGs that can now reliably deliver this information from your wrist, chest, or arm means you can understand how hard you’re hitting it in bootcamp class and get a window into your most stressful period. your day.
For more sports and fitness guides, check out the best Fitbits, the best fitness trackers and watches, the best running gear, and the best wireless earbuds for a workout.
Special Offer for Gear Readers: Get One year subscription to Wired for $5 ($25 off). This includes unlimited access to WIRED.com and our print magazine (if you wish). Subscriptions help fund the work we do every day.