

It’s a good time to be Oura, the world’s most prominent smart ring company. The company debuted the Oura Ring 4 in late 2024 with an updated design, slimmer sensors, and software updates. It was an unmitigated success—out of 5.5 million Oura rings sold since its inception in 2013, nearly half of them were sold in the past year.
Oura continues to add women’s health features and partners to its software offering. This fall, it announced plans to build a manufacturing facility in Fort Worth, Texas, to support its enterprise partner, the US Department of Defense. The US International Trade Commission also ruled in Oura’s favor in a patent infringement case, and the company’s main competitors, Ultrahuman and Ringconn, are facing a sales ban starting on October 21. (Ultrahuman is countersuing.)
Keeping momentum going, Oura announced a new ceramic smart ring lineup today, along with multi-ring support in the app, as well as a new milled-aluminum case that recharges via USB-C and can charge your ring up to five times. You can even request blood panels through the app.
New Colors and Carry Solutions
Courtesy of Oura
Oura rings are almost instantly recognizable today—I can spot that brushed silver or rose gold finish anywhere. I even know people who wear Oura rings as their wedding rings. (I’m not quite there yet.) If your Oura ring is not only a fitness tracker but a fashion accessory, the new Ceramic Collection will likely appeal.
The ceramic rings come in four colors: Midnight, Petal, Tide, and Cloud. While the sensors and the metrics they collect are the same as those of the Oura Ring 4, it’s made from high-performance zirconia ceramic. The material is durable, but it will show scuffs, which you can buff out with the included polishing pad. It’s a tad thicker than the original Ring 4, which touted slimness as one of its biggest upgrades—the metal Oura Ring 4 is 2.88-mm thick, while the ceramic is 3.51 mm.
For the first time, the app also supports multiple rings, meaning you can swap your ring depending on your mood or outfit. This feature is available for iPhone users today, but Android phone owners will have to wait until October 20.
I have mentioned in other smart ring reviews that I appreciate having a closed charging case. I’m far from the only person who has accidentally knocked an Oura ring off its charging dock while it’s sitting on a bedside table or desk. Now Oura has its own palm-sized charging case, which can charge the ring in 90 minutes and has enough battery to recharge the ring up to five times.