They say size doesn't matter, but when it comes to smart rings, too small or too large can lead to discomfort and/or unreliable health data. The best way to ensure perfect sizing for your smart ring ...

Discover how smart rings 2026 track sleep, HRV, and fitness metrics. Compare Oura Ring 4, accuracy rates, battery life, and ...

I review wearables for a living, and I have a confession. I hate wearing a smartwatch to bed. However, I love the sleep-tracking insights the best smartwatches offer. What's a fellow to do?

The Oura Ring fourth generation smart ring has received a fresh look with the introduction of the Ceramic Collection. Made of durable zirconia ceramic, the Oura Ring 4 comes in four additional colors, ...

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including ...

More discreet than a fitness tracker or smartwatch, the best smart rings we've tested can track your activity and sleep from an unobtrusive spot on your finger. I’m PCMag’s senior writer covering ...

Oura has arguably done more than anyone else to push the category forward and its rings are category-leading. The Ring 4 is one of the strongest on the market and the company makes a big deal about ...