When the sizing kit shows up, tear the bad boy open and grab a ring. Oura recommends wearing the device on either your index finger, middle finger, or ring finger for optimal tracking performance.

The charging case is specific to the Oura ring 4. If you have a gen 3 ring, there are a few third-party charging cases ...

Aside from the paper ring size chart, one of the most accurate at-home sizing methods is a ring sizer. Ring sizers can be found online for as cheap as $4. The process is quite simple: "you feed one ...

Are you in the market for your first ring? Or maybe an upgrade on the thrift store one you’re currently sporting? You’ve come to the right place. No, this obviously isn’t a jewelry store — we do have ...

Amazon shoppers call these affordable ring adjusters a "lifesaver" for loose rings (Photo via Getty) Unless you (and your partner) know your ring size by heart, sizing mistakes are bound to happen ...

Is a sparkly ring calling your name in a ring catalog? Do you feel compelled to order it now, but don’t want to visit your nearby jeweler to get your finger sized? Maybe you don’t have time. Maybe you ...

Forbes contributors publish independent expert analyses and insights. Prakhar Khanna covers the consumer tech beat for Forbes. Buying a smart ring isn’t as seamless as purchasing a smartwatch. Ideally ...