Smart rings are having a moment. While most of the talk is about Oura rings, there are several alternative options out there ...

Heart rate tracking in earbuds has been attempted for over a decade, but the Powerbeats Pro 2 may have finally gotten it right with a better fit and sensors.

The FoodMarble Aire 2 claims to be able to use breath-testing to track gut issues -- but does it really help track down gut ...