Pros

FSA and HSA eligible

Offers lots of data and insights that fitness watches don't

Waterproof

Come in two styles and multiple colors

Cons

A little bit pricey

Comes with a monthly $5.99 membership

In the words of Cosmo 's former shopping editor, Hannah Oh, who reviewed the Oura Ring 3 at length, this bad boy is "completely comfortable, charges super quickly, and provides extensive, easy-to-interpret data for anyone looking to dive deeper into understanding their sleep, exercise, stress, breathing, heart rate, and menstrual cycle." Moral of the story?…