Those days Reading your heart rate only when you go to the doctor is really a thing of the past. You don’t even have to spend a fortune or leave the house to know your heart rate during exercise or at rest.
The proliferation of optical and EKG (electrocardiogram) sensors can now reliably deliver that information from your wrist, chest or arm, meaning you can clearly understand than you achieved in that training class and have a chance to enter the most stressful periods of your day.
For more sports and fitness guides, see Best Fitbits, The best fitness trackers and watches, Best running deviceand The best wireless headphones for workouts.
Gear Readers Special Offer: Get One 1 year subscription to WIRED for $5 ($25 off). This includes unlimited access to WIRED.com and our print magazine (if you wish). Sign up to help fund the work we do every day.
