A few of the most important insights are heart rate variability (HRV), which describes the difference in time between the ...

We may receive a commission on purchases made from links. When smartwatches and other wearables first hit the market, some people were skeptical that they'd be anything more than a novelty. Once users ...

A heart rate monitor may be the key to unlocking your fitness goals. That’s because heart rate is a reliable indicator of your exercise input—it reflects the effort applied to every workout. Keeping ...

Using a chest strap heart rate monitor can give you accurate, actionable insights to help improve your running. What is the best chest strap heart-rate monitor overall? The best chest strap heart-rate ...

Your smartwatch heart rate is good, but these are better ...

When it comes to exercising, your heart rate is the gold-standard metric to uncover how hard you're pushing. It tells you whether you're working aerobically or anaerobically, how your body is reacting ...

These are independent reviews of the products mentioned, but TIME receives a commission when purchases are made through affiliate links at no additional cost to the purchaser. These are independent ...

The Garmin HRM-Fit is a heart rate monitor made for women, or at least anyone who would wear a sports bra while exercising. Where other heart rate monitor straps use an elastic band and a metal popper ...

When the first Apple Watch made its global debut, Apple said it was a product that would enrich people's lives and encourage them to adopt a healthier lifestyle, thanks in part to a heart rate sensor ...