Modern smartwatches can do far more than track your health. Here are the best options with calling, payments, navigation and ...

VO2 max measures the maximum amount of oxygen your body can use during exercise. It’s become one of the buzziest fitness metrics on social media, with influencers and wearable devices touting it as a ...

We tested Fitbit trackers during workouts, sleep, and daily life. The Charge 6 is best for most needs, while the $100 Inspire ...

From the budget-level Bip to the rugged T Rex line, let's take a look at Amazfit's strengths and weaknesses across its ...

The Fitbit Air wristband and the Oura smart ring are both excellent screen-free fitness trackers. I compare specs, features, ...

Maximum Operating Altitude-GPS, GLONASS, optical heart rate monitor, 3-axis accelerometer, red and infrared sensors for oxygen saturation (SpO2) monitor, device temperature sensor, multipurpose ...