Choosing between the Oura Ring 5 and Oura Ring 4? In this initial comparison, we analyze all the key difference between the smart rings.

Google's new Fitbit Air is generally available this week and if it was something you had your eye on, it can be purchased and slapped on a wrist within a few days. We've been testing a review unit for ...

I tested both of these screen-free fitness trackers to determine whether the affordable Fitbit Air wristband or the stylish Oura smart ring is the better pick.