However, some, like the black ring, may have a hidden meaning. Hidden Meaning of the Black Ring Americans have traditionally conveyed their commitment to their spouse by sporting a metal band on ...

Similar to some of our favorite smartwatches, but hidden away in a sleek, normal-looking ring. SEE ALSO: Save 30% on the Fitbit Google Ace LTE kids smartwatch this Black Friday The Oura Ring 3 is ...