Here's what happened when we tested the Garmin Cirqa against a chest strap for accuracy.

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 ...

Breathing does become more efficient as runners get more aerobically fit (you’ll have a lower breathing rate for the same ...

If you want the most accurate heart rate readings, you'll need to strap on a chest strap.

Apple, Garmin, Samsung, Google or Amazfit? I put these watches through the paces to see where they land on step, distance and heart rate accuracy. I wasn’t aiming to run a marathon when I started this ...

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Bryan Johnson recently said his resting heart rate ...

AirPods Pro 3 heart-rate testing looks promising against Apple Watch and chest-strap benchmarks, but the results apply best to healthy users in controlled workouts. AirPods Pro 3 may be closing the ...