Oura Ring 4 [Size 13] (Stealth) NoLongerAvailable " Time Magazine placed it

" Time Magazine placed it as the 15th greatest album ever

Placebo announce their long-awaited 8th studio album

Rechargeable lithium battery that provides up to 12 hours of continuous playback

Leaves skin soft and smooth

Oura Ring 4 [Size 13] (Stealth) NoLongerAvailable " Time Magazine placed itIntroducing Oura Ring 4: the latest evolution of the revolutionary smart ring. Oura Ring 4 brings you closer to what matters most your health. The updated all titanium design is powered by Smart Sensing, a new sensing platform that doesnt just measure your biometrics, it adapts to you, providing insights into over 30 biometrics including sleep, readiness, activity, heart health, stress and womens health. Oura Ring quietly and comfortably monitors your