Smart Ring Showdown: The Two Market Leaders
Oura and Ultrahuman dominate the smart ring category, but they take fundamentally different approaches.
Design and Comfort
The Oura Ring 4 uses titanium at 4-6g. The Ultrahuman Air uses titanium alloy at 3-5g.
Sleep Tracking Accuracy
- Sleep stage accuracy: Oura 78%, Ultrahuman 74%
- Sleep onset detection: Oura 6 min, Ultrahuman 9 min
- REM detection: Oura 72%, Ultrahuman 68%
- Deep sleep detection: Oura 81%, Ultrahuman 79%
HRV and Recovery
Both rings measure HRV during sleep. Oura provides more contextual guidance while Ultrahuman is more raw-data focused.
Subscription and Pricing
Oura charges $5.99/month. Ultrahuman has no subscription fee. Over two years, Oura costs $543 while Ultrahuman costs $399.
