Let's talk about one of the most confusing terms you’ll see on your fitness tracker—specifically your Apple Watch. Next to ...

From tracking your workouts to performing as a walkie talkie, there isn’t much your Apple Watch can’t do nowadays — and one of its many functions is sleep tracking. Even if you didn’t buy your Apple ...

Apple Watch includes a built-in sleep tracking feature. Just wear your Apple Watch to bed, and it works automatically.

Apple Watch is arguably one of the best smartwatches around and hands-down the best companion to an iPhone. It excels in so many ways, tracking activities and vitals, offering access to apps, and more ...

Unveiled at the "Awe Dropping" event, Sleep Score isn't an Apple Watch Series 11 exclusive. Here's a look at how it works and how to try it yourself. Apple has been taking sleep tracking more ...

The Apple Watch has offered sleep tracking since 2020, and since then, it has been updated with new visuals and features. Each update has provided more insight into your sleep patterns and overall ...

We all have days where we wake up after clocking the usual sleep hours, but still feel fatigued and wonder if there was something wrong during the rest hours. For such situations, the sleep tracking ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Did you know you can ...

The Apple Watch 11 is supposed to be able to alert users about “possible hypertension” by using data from an optical heart rate sensor “to analyze how a user’s blood vessels respond to the beats of ...