Oura Ring 4 review: This smart ring is a great sleep tracker, but not a great activity tracker

Oura is the most "ring-like" of the bunch, compared to a traditional jewelry ring. The current model just as a small indent ...
PureWow

The QALO QRNT Slim Smart Ring, Reviewed: It's the Nudge I Needed to *Finally* Get Off the Couch

The QALO QRNT slim ring is a smart wearable device that provides a wide range of biometrics insights, from heart rate to ...