Independent testing shows AirPods Pro 3 can track workout heart rate with low average error, but limits remain for intervals, clinical use, and all-day monitoring.

Wearables measure several aspects of health, and heart rate variability might be one of those. It may be surprising when your device informs you that your heart rate variability is high or low, but ...

What is heart rate variability (HRV)? As popular as the metaphor may be, a healthy heart doesn’t beat as regularly as a metronome. In fact, it changes its rhythm with each beat. Heart rate variability ...

Researchers at multiple institutions have found that consumer wearable devices, including smartwatches and smart rings, can ...

The rhythmic beating of your heart tells a more complex story than most realize. While standard health assessments typically focus on heart rate, the subtle variations between individual heartbeats ...

If you want the most accurate device for monitoring your heart rate, opt for a chest strap heart-rate monitor. Unlike ...

Heart rate variability typically decreases during stressful situations, although the heart rate increases. Managing stress levels can mean a more variable heart rate. Exercise and relaxation ...

Millions of people around the world wear smart rings and fitness trackers to keep tabs on their sleep, workouts, heart rate ...