How accurate is your smartwatch? Learn how Apple and Samsung smartwatches use motion and HR to track sleep, and why you should take the data with a grain of salt ...

Edit sleep settings from Apple Watch Sleep app or in the Sleep section of the Health app on iPhone. Apple Watch sleep tracking works closely with the Health and Watch apps on your iPhone. Learn how to ...

Your Apple Watch may be able to do more for your health than you're aware of. Start using these features as you go on your ...

For a while now, I’ve worn two devices when I go to sleep—an Apple Watch Series 7 on my left wrist, and a WHOOP 5 MG on my right wrist. Every morning, I get three different scores purporting to tell ...

Over the years, Apple has developed a habit of observing what works in other smartwatches and fitness trackers, and then introducing similar features to the Apple Watch later. But, because it’s Apple, ...

Apple unveiled Sleep Scores on the Apple Watch. The feature is available with WatchOS 26 and on the new smartwatches. There's one health tracking feature I wish Apple had announced. Last year, Gallup ...

I don’t know how or when it happened, but I have become obsessed with tracking my health data. Formerly, I would toss and turn, wondering what had caused my sleepless nights, or donned a new pair of ...