Not got a tool and urgently need your ring size? You can try a printable ring size chart, like this one from Oliver Bonas – Greener advises that these methods can be tricky to do accurately, so a ring ...

Designed as a fitness tracker worn on the finger, it measures 2.6mm thick and weighs between 2.3g and 3.3g depending on ring size. Despite its discreet appearance, the AI-powered Galaxy Ring is ...

Oura is available in twelve different ring sizes, and Ultrahuman has ten. As a good fit is necessary for accurate scores, both Oura and Ultrahuman will send you a size testing kit beforehand.