Casio's new Ring Watch has a few smart features
Priced at 1990 yuan (~$294) in China, the CRW-H001 tracks heart rate, blood oxygen, sleep and more in three ring sizes.
Casio's CRW-H001 is a tiny retro-style watch for your ring finger, and the newest model has a few smart features to make it an alternative to models from Oura and Samsung.
Added to the tiny gadget is monitoring of the wearer's heart rate, blood oxygen levels and body temperature. It tracks sleep, steps and menstrual cycles, and estimates calo…
