Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness ...

The best fitness trackers you can buy today range in price ... wearing them as we exercise, sleep, work, recreate, and everywhere in between. With hundreds of hours of testing under our belts ...

The WHOOP 4.0 is water-resistant for up to approximately 32 feet for two hours. Or, in simpler terms—you can shower in it, ...

“Fitness trackers offer a ton of benefits—they can monitor your heart rate, track your workouts, count your steps, analyze ...

In 2025, fitness trackers have become more sophisticated, offering advanced health insights, seamless connectivity, and ...

The Atari 2600 My Play Watch will track your daily steps and lets you play Centipede, Pong, Missile Command and Super ...

I ditched cardio for HIIT workouts for 30 days. The shocking results transformed my fitness, energy, and body. Discover all ...

28, 2025 — If you’re like many Americans, you probably have a fitness tracker or a smartwatch on ... resting heart rate, exercise heart rate, calorie expenditure, time spent standing, step ...