Circular has an app to make sure its new smart ring fits perfectly on your finger
Circular is rolling out a new tool along with its next smart ring that will take the guesswork out of figuring out your ring size.
Circular Ring 2 unveiled at CES – and it's the end of plastic sizing kits for smart rings
Circular's new smart ring, the Ring 2, has an FDA-cleared AFib detection algorithm It can be sized using your smartphone, with no need for a plastic sizing kit Battery life runs for up to eight days, ...