After all, there’s no screen on a smart ring. The Ultrahuman app has the upper hand in design, with a sleek, modern, almost ...

Perhaps most interesting is the mechanical design on show. A static internal ring is paired with a rotating outer band, presumably with the intention of directing input. There's also an electronic ...

Dubbed the ‘world’s thinnest smart ring’, the Circular Ring Slim lives up to these expectations with its lightweight and comfortable design. It uses a combination of sensors to measure and ...