Oura Ring Gen 3 Review
Oura Ring Gen 3 Review
The World's Most Advanced Health Tracking Ring
Sleep tracking, HRV, body temperature, menstrual cycle prediction — all from a ring you never need to take off.
Why the Oura Ring is America's Favourite Health Tracker
The Oura Ring Gen 3 is worn by everyone from NBA players and Navy SEALs to Silicon Valley executives and sleep researchers. It provides continuous health monitoring from the most accurate location on the body for biometric readings — the finger — where blood vessels sit close to the surface. After wearing it for six months alongside an Apple Watch, my Oura Ring consistently gave more accurate sleep staging and resting heart rate data.
Sleep Tracking — The Best Available
The Oura Ring's sleep tracking is in a different league from wrist-based wearables. It accurately identifies Light, Deep, and REM sleep stages with clinical-grade accuracy. The Sleep Score (0-100) gives you a simple daily number, but the detailed breakdown shows exactly when you transitioned between stages, your HRV during sleep, your lowest resting heart rate, and your respiratory rate. This data changed how I approached sleep hygiene completely.
Readiness Score — The Feature That Changes Everything
The Readiness Score tells you on a scale of 1-100 how prepared your body is for physical stress that day. On days I pushed through training with a low Readiness Score, I consistently performed worse and felt worse the next day. After three months of taking it seriously, I reduced my injury risk dramatically. This is genuinely useful for anyone who exercises seriously.
| Specification | Detail |
|---|---|
| Sensors | PPG, NTC temperature, 3D accelerometer |
| Battery Life | 4–7 days |
| Water Resistance | 100m waterproof |
| Charging | Wireless magnetic, ~20–80 minutes |
| Material | Titanium shell, no nickel |
| Weight | 4–6g depending on size |
| Subscription | $5.99/month for full app features |
✅ Pros
- Most accurate sleep tracking available
- HRV, body temperature, SpO2
- Menstrual cycle prediction
- 100m waterproof
- 4-7 day battery
- Lightweight and discreet
❌ Cons
- Monthly subscription required
- No display (phone required)
- Sizing kit needed before ordering
