Oura ring, Gen 3, Heritage, Silver, Size 12

The Oura Ring Generation 3 (Gen 3) is a wearable ring that tracks sleep, activity, and biosignals. It has sensors that include heart rate, blood oxygen, and temperature. The ring works with an app that provides personalized insights and recommendations. Fully functional and works well.
Features
Tracks sleep, activity, and biosignals
Includes a size-specific charger and cable
Available in sizes 6–13 and two styles
Lightweight, metal band with tiny sensors on the inside
Tracks blood oxygen levels by shining a red light into your finger
Provides sleep, activity, and readiness scores
Provides resilience level, which measures stress and how quickly you recover from it
Provides in-depth sleep analysis
Provides temperature trend monitoring
How it works
For best results, align the ring so that the sensor bumps are against the palm side of your finger
The Oura app provides sleep, activity, and readiness scores each morning

Product Information