I'm testing the Garmin Venu 4 and the Apple Watch Ultra 3 against the most accurate heart rate monitor on my lunchtime run.

The beat is intensifying. Every new electronic device these days – from your phone to your watch to your ring – seems to want ...

Heart rate variability is one of the main things your smartwatch or fitness tracker measures. Here's what it means.

In TODAY.com's Expert Tip of the Day, a cardiologist explains why a lower resting heart rate can be a good sign of heart ...

A new study has found a connection between a person’s heart rate patterns at rest and their likelihood of passing an ...

If you prefer to keep one ear completely unobstructed for whatever reason, you might be happy to know you only need to wear one of your AirPods Pro 3 during a workout to track your heart rate. Both ...

Smart watches offer real-time heart rate tracking, but not every alert needs panic. Cardiologist explains the difference ...

Your resting heart rate is the number of times your heart beats per minute while your body is at rest – when you're sitting or lying down, having not engaged in much physical ac ...

The researchers said the findings dispel the myth that exercise uses up your heartbeats, which they claimed was “popularized” ...

If the numbers your watch sets for zone 2 don’t track with what you’ve found your heart rate to typically be during truly ...

In TODAY.com's Expert Tip of the Day, a cardiologist explains how to slow down a racing heart in times of stress.

Targeted radiation therapy might be a safer way to treat a potentially dangerous heart rate problem called ventricular ...