The Oura Ring that made 24 hour biometric tracking something people actually sustain. 30+ metrics measured continuously. Sleep stages, HRV, body temperature, resting heart rate, stress, activity, and cycle tracking. Up to 8 days of battery. Fully titanium, water resistant to 100 metres, and comfortable enough to wear through workouts, showers, saunas, ice baths, and every night of sleep without noticing it is there. Silver is the classic finish. Neutral, understated, and matches everything you already own.
Wrist trackers get removed. That is their fundamental problem. At dinner, in meetings, before bed, in the shower. Every hour a tracker sits on a bedside table is an hour of data you paid for and never got. And the hours most people remove their tracker for are precisely the hours that matter most. Overnight recovery. Sleep architecture. Nocturnal HRV. The signals that determine whether tomorrow is a strong day or a wasted one.
Oura solved this by putting the sensors somewhere you never take them off. It is a ring. No screen. No notifications. No vibrations. It measures continuously, silently, and the data appears in the app the next morning as three scores that turn 30+ raw metrics into decisions you can actually make: Sleep Score, Readiness Score, Activity Score.
The Ring 4 is the fourth generation of the platform, built around Smart Sensing technology that adapts to your specific finger and physiology for continuously accurate data. Fully titanium with recessed interior sensors, making it more comfortable than any previous version and gentle even on sensitive skin. Up to 8 days of battery on a single charge. Syncs with over 40 apps including Apple Health, Google Health Connect, Strava, Natural Cycles, and Flo.
The Ring 4 sits at a significantly lower price than the Ring 5 while running the same core platform, the same app, the same scoring system, and the same membership. If you want the Oura experience without the Ring 5 premium, this is the version to buy. Silver is the finish that goes with everything, sits well next to any watch, and never looks out of place.
Requires Oura membership for full data insights and app features. First month included with purchase for new members. Ships in the exact size identified through your Oura Ring 4 Sizing Kit. Note that Ring 4 sizing differs from Ring 5 and from standard jewellery sizing.
