As a certified personal trainer, I tested 14 wearables over eight months while training, running and swimming. Here are the ...

Millions of people rely on wearable devices to monitor how well they're sleeping. Sleep trackers don’t necessarily measure ...

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Sleep trackers promise to turn the mystery of the night into clean numbers and colorful charts. Yet as the devices have ...

How does a sleep tracker on your finger compare to one in a bed? I tested Sleep Number and Oura for a month to find out. Plus, expert sleep-tracking tips. Aly Lopez Former Writer I Aly Lopez was a ...

Better sleep isn't just about going to bed earlier. These smart gadgets target tracking, routines, and common sleep ...

The Amazfit Helio smart ring is comfortable to wear, relatively durable and reasonably priced. More importantly, it provides accurate heart rate measurements and offers plenty of clear, actionable ...

Could Luna beat Oura at the smart ring game?

Over one-third of Americans use some sort of device to track their sleep, according to the American Academy of Sleep Medicine. CREDIT: whitebalaance.space via Getty Images. Get the Popular Science ...

Sleep – the final frontier, or so it seems in digital health. While everybody needs sleep and plenty want to know more about how to do it the best they can, tools to improve sleep and, in turn, ...