Oura on Thursday unveiled the fifth generation of its popular smart ring, starting at $399. The Ring 5, which Oura describes as the world’s smallest smart ring, arrives just a year and a half after the company launched the Ring 4 and seven months after the Ring 4 Ceramic. The Ring 5 is 40% smaller than its predecessor and comes with more accurate sensing and enhanced battery life.
The Ring 5 is launching alongside new software updates that include blood pressure signals, live activity tracking, on-demand care, and other features that will also roll out to the Oura Ring Gen3 and later.
The new smart ring is available for pre-order starting today and will start shipping on June 4. It’s available in sizes 6 to 13 and comes in six finishes, including a redesigned Gold with a truer gold tone, an updated Deep Rose with a copper-like look, plus Silver, Brushed Silver, Black, and Stealth. The Black and Silver retail for $399, while the rest cost $499. For comparison, the Ring 4 started at $349.
Maz Brumand, VP of Product at Oura, told TechCrunch that the company reduced the ring’s width by about two millimeters and its thickness by roughly 30%. Brumand noted that Oura members had been asking the company to make a ring that was smaller and thinner, prompting the shift toward a slimmer design. Oura achieved the new size by redesigning the mechanical, electrical, optical, battery, and sensing architectures, Brumand explained.










