The $349 Circular Ring 2 introduces a couple of new features to the smart ring category, but it fumbles too many basics to be a useful fitness tracker. From your finger, this stylish titanium band can ...

Great hardware, messy software ...

Nearly two months after revealing its second-generation smart ring, Circular has finally started taking pre-orders for the Ring 2 and will start shipping in June. This one is a massive upgrade, and ...