Fitness trackers and smart watches are widely popular wearable devices that measure several types of health metrics, including step count, calories burned, sleep quality, Vo2 max and heart rate.

If you own a smartwatch or have been around people who own smartwatches, you may have encountered a metric called HRV, or heart rate variability. On the internet and social media, it certainly seems ...

The key benefit of wearing a health tracker is learning about your heart rate variability (HRV). This metric helps users to ...

As wearable technology has grown more popular, it’s not just researchers and cardiologists who are paying attention to heart rate. You might be monitoring your own all day long via a fitness tracker ...

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

Your heart beats around 100,000 times every day. Heart rate is a key marker of cardiovascular activity and an important vital sign. But your pulse is not as steady as a precision clock – nor would you ...

Earlier this year, however, Amazfit, known for its budget-friendly fitness trackers, debuted the helio strap, which costs just $99 with no subscription required. (You can upgrade to a $69.99 ...