For the past few years, the Oura Ring has been the most recognizable smart ring on the market. After what I saw on the CES show floor, it’s about to get some real competition.
The smart ring is a promising form factor, but it’s tricky to get right. It’s more discreet and comfortable for sleep tracking than a smartwatch. The underside of your finger is also a better place to take heart rate and blood oxygen readings than your wrist. The downside is that it’s challenging to create a…
