Oura Ring 5 vs Oura Ring 4: What's changed for the 'world's smallest smart ring'?

(Image credit: Future)

The time has come: the Oura Ring 4 has officially been upstaged by the hotly anticipated Oura Ring 5, and there are plenty of changes to the ring you should know about if you're deciding whether or not to invest.I have been wearing my Oura Ring since its 2021 release, graduating from the Oura Ring Gen 3 to the latest 5 model, and I'm convinced it's still the best smart ring on the market, despite stiff competition emerging.Launched on May 28 2026, the Ring 5 is now the "world's smallest smart ring," but what else can you expect? Oura announced new features that will roll out to the Oura Ring Gen3, Oura Ring 4, and Oura Ring 4 Ceramic. These include live workout tracking, more women’s health features and a brand new way to find your ring or charging case if you lose it.Read on to find out more about the Oura Ring 5 vs Oura Ring 4, whether we think it's worth upgrading and a sneak peek at the new design.

Oura

Ring 5

The Oura Ring 5 is available for preorder (it will ship June 4), and comes in six finishes. It's thinner and lighter, and lasts up to nine days on a charge.