Published: June 4, 2026 ⢠5:30 PM IST ¡ Updated: June 4, 2026 ⢠6:15 PM ISTBy TheBriefWire Editorial Team
Key points
When I first opened the box the Oura Ring 5 comes in, my first thought was, âWow, thatâs tiny.â My second thought was that this is a smart ring a lot of people have been waiting for.
As someone who got quite used to wearing the Oura Ring 4 Ceramic, I was surprised how noticeably smaller and lighter the new Ring 5 is.
The Ring 5, which Oura describes as the worldâs smallest smart ring, is 40% smaller than its predecessor, measuring 6.09 mm wide compared to the Ring 4âs 7.90 mm, and 2.28 mm thick compared to the Ring 4âs 2.88 mm.
Although the exact weight depends on your ring size, the Ring 5 weighs between 2 grams and 2.69 grams, while the Ring 4 weighs between 3.3 grams and 5.2 grams.
I found that these changes dramatically improve the ringâs comfort, and also make it more aesthetically pleasing...