Plus, everything you need to know about the brand-spanking-new ceramic rings.

I’m a personal trainer who's tested products for five years. I wore the Oura Rig 4 nonstop for six weeks to see if it's worth the investment. After wearing this ring all day, every day for over a ...

We may receive a commission on purchases made from links. Smart rings have grown in popularity as a way for users to get high-end fitness tracking in a subtle and sleek device. Oura, in particular, ...