Your watch’s VO2 max isn’t perfect, but you can improve its accuracy with better data and heart-rate tracking.

With the rise in popularity of the Oura Ring, I've seen lots of ZDNET readers express interest in finding a more affordable alternative. I don't blame them; while the Oura Ring is a leading smart ring ...

Health trackers like Apple Watches and Oura Rings already do a fine job at providing insights into health patterns and trends. But sometimes, software comes along that offers a little something else ...