Every extant fitness tracker collects a massive amount of biometric data in an effort to help active people improve their athletic performance. These sensor-laden wearables track not only how many ...

Ready to ditch the “just tracking steps” vibe? Modern running watches do much more than measure run distance and heart rate: They can help you dial in your training, map out epic runs, and even ...

WatchOS 9 is also packed with a ton of new daily usefulness, like sleep stages, new watch faces, and reminders to take your medicine. I won’t dive into all those details, but you can learn more here.