Azumio's Instant Heart Rate app has passed the 10 million download mark, the company announced this week, making it one of the most popular health apps on the market. The app claims to measure a ...

There are plenty of apps that take advantage of your phone’s hardware to do obvious things. You can turn your phone into a GPS unit or even a compass by using the accelerometer and GPS receiver. You ...

When it comes to tracking your heart rate, nothing beats using equipment designed for such a purpose, such as chest strap heart rate monitors or electrocardiograms. However, if you're looking for an ...

As part of the extensive Health eHeart Study, University of California, San Francisco researchers found smartphone camera-based heart rate measurements often employed by apps to strongly correlate ...

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 ...

Runners, cyclists and gym-goers with wearable fitness trackers are no doubt familiar with the five "heart rate" zones.

If you’ve ever glanced at your smartwatch mid-workout and wondered whether your heart rate is impressively low for how hard ...

To live is to have a heartbeat, which is why it makes sense for us living things to have a good understanding of our ticker. It’s well-known science that our hearts beat faster when we exercise and ...