A few of the most important insights are heart rate variability (HRV), which describes the difference in time between the beats of your heart, and resting heart rate (RHR), which is the number of ...

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 ...

Paying attention to your heart rate when training can be an excellent way to monitor your intensity and performance. Not only can this help ensure you stay within the threshold to burn calories ...

Taylor worked with AP from 2018 to 2025, most recently as Google Editor. Fitness functionality is front and center in most of the best smartwatches; they all track steps and activity in hopes of ...

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 ...

Keeping track of your heart rate while working out is now easier than ever, thanks to wearables like smartwatches and fitness trackers. However, the gold standard for heart rate data is a chest strap ...