The Oura Ring 4 is one of the sleekest fitness trackers I've reviewed. It's a top pick for all but the most serious athletes.

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 ...

We tested today's top smart rings for accuracy, comfort, and design. Here are the models worth your money in 2026.

Why these startup founders and business leaders all swear by a $3,000 temperature-controlled bed cover—and why one chucked ...

A restful night's sleep is something many people wish they could achieve but never do. With the demands of work, family and everything in-between, many people find themselves tossing and turning in ...

Sleep is one of the core metrics all smart rings track. They typically offer a daily sleep score out of 100, which takes into ...

Oulu, Finland-based Ouraring has raised $5.3 million (5 million euro) to support the development of its first product, a smart ring called Oura that uses heart rate, motion, and temperature sensors to ...

(CNN) — One of the Apple Watch’s biggest threats has no screen, weighs about a fifth of an ounce and charges a monthly subscription for most of its features. Yet Oura is on pace for $1 billion in ...

On paper, at least, Aivela is giving the smart ring category a different spin, shifting it from passive health tracking toward more active control.

CNET's sleep team tests and reviews much more than just mattresses. We aim to sort through the overwhelming amount of sleep-related information available online to find what works -- and help you ...