New Oura Ring 4, size 7 – latest generation smart ring with Smart Sensing technology for more accurate sleep, readiness, and activity insights.

Tracks detailed sleep stages, heart rate, HRV, blood oxygen, temperature trends, stress, and daily activity.

Fully titanium with a smoother inner surface and flush sensors for a lighter, more comfortable fit and up to 5–8 days of battery life per charge.

Factory fresh and ready to activate with your Oura account.