How the Oura Ring 5 Compares in Size to Other Smart Rings
The Oura Ring 5 is the thinnest smart ring available, noticeably smaller than previous Oura generations and competing rings like the RingConn Gen 3.
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Oura Ring 5, in gold, next to Oura Ring 4, in black. Credit: Beth Skwarecki
I’ve been wearing the Oura Ring 5 for a few days now. My full review is coming soon, but I have one major takeaway so far: The Oura Ring 5 is impressively thin, as was promised. It’s also the most comfortable smart ring I’ve ever worn.
The Oura Ring 5 Is Getting Closer to the Size of a Non-Smart Ring
Left to right: regular rings, Oura Ring 5 in gold, Oura Ring 4 in black. Credit: Beth Skwarecki
The photo above shows the size of the Oura Ring 5 (center, in gold) next to the previous generation, the Oura Ring 4 (right, in black). To the left are two regular jewelry rings for comparison. The latter rings are chunkier than a lot of people’s delicate little wedding rings (what can I say, I’ve always appreciated a sturdy titanium ring), but they’ve always looked tiny when placed next to a smart ring. Compared to the Oura Ring 5, though, the difference is a lot less dramatic than with any other smart ring I’ve worn.
The Oura Ring 5 Is the Smallest Smart Ring I’ve Ever Seen
Left stack, top to bottom: Samsung Galaxy Ring, Ultrahuman Ring Air, RingConn Gen 3. Right stack, top to bottom: Oura Ring 5, Oura Ring 4, Oura Ring 3. Credit: Beth Skwarecki
Based on specs, I knew this ring would be the smallest one I’ve tried, and here’s the proof: In the photo above, the three rings on the right-hand stack are various generations of Oura rings, with the Oura Ring 5 on top. On the left stack, the rings are (top to bottom) the Samsung Galaxy Ring, the Ultrahuman Ring Air, and the RingConn Gen 3.
RingConn Gen 3, left; Oura Ring 5, right. Credit: Beth Skwarecki
This photo offers a direct comparison between the Oura Ring 5 and the RingConn Gen 3, its closest competitor with regard to size. The Oura Ring 5 is in gold, the RingConn Gen 3 in silver.
How the Oura Ring 5 Compares to Previous Generations of Oura Rings
Left to right: Oura rings 3, 4, and 5. Note that the gen 3 ring is a larger finger size (size 9) than the other two (both size 8). Credit: Beth Skwarecki
In the photo above, you can see the last three generations of the Oura ring: the 3, 4, and 5, from left to right. The gen 3 had round sensor bumps on the inside, while the Oura Ring 4 flattened those out for a smoother fit — and the Oura Ring 5 takes that profile even further, resulting in a noticeably slimmer and more ring-like profile overall.