Oura Ring 4
Advanced health tracking smart ring with sleep analysis, heart rate monitoring, and blood oxygen sensing.
Where to buy
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Our take
The Oura Ring 4 scores 77/100 and remains the gold standard for sleep tracking — though the mandatory subscription leaves a bad taste that drags the score down.
Sleep stage accuracy is best-in-class. Heart rate variability, body temperature trends, readiness scores, automatic workout detection — wrapped in a comfortable 4-6g ring that lasts 7 days and is waterproof to 100 meters. Performance: 90/100. It tracks 24/7 without you thinking about it, which is the entire point of a smart ring.
The value score of 60/100 reflects the $5.99/month ($59.99/year) subscription that gates the most useful features. Without it, you get basic sleep and heart rate data — missing readiness scores, detailed insights, and workout analysis. RingConn Gen 2 (79/100) offers comparable tracking with zero subscription at the same $299 price.
At $299 (Best Buy), the lowest recorded, with "On sale" green momentum — this is a good buying window. Amazon lists it at $399 and Oura's site at $349, so Best Buy is the clear winner right now.
Bottom line: Buy at $299 from Best Buy if you want the best sleep tracking available — but seriously consider the RingConn Gen 2 if the subscription rubs you the wrong way.
Pros & cons
What we like
- Exceptional sleep tracking accuracy and detailed insights
- Comfortable lightweight design for 24/7 wear
- 7-day battery life with fast charging
- Comprehensive recovery and readiness scores
- Improved sensors and accuracy over previous generations
What could be better
- Requires expensive monthly subscription for most features
- Limited smart features compared to smartwatches
- No display or notifications
- Sizing must be precise for accurate readings
Key features
Who is this for?
Best for
Health-conscious individuals who want 24/7 passive tracking with a focus on sleep quality and recovery, without wearing a bulky watch.
Not ideal for
People who want real-time workout metrics on their wrist, or those who don't want any subscription fees for full features.
How it scores
Review scores
Total cost of ownership
| Device Price | $299.00 |
| Subscription (Required) | $5.99/mo |
| Annual Plan | $59.99/yr |
| 1-Year Total Cost | $358.99 |
| 2-Year Total Cost | $418.98 |
| Free tier includes: Basic sleep tracking, Heart rate monitoring | |
Specifications
| Battery Life | Up to 7 days |
|---|---|
| Sensors | Heart rate, SpO2, temperature |
| Water Resistance | 100m |
| Connectivity | Bluetooth 5.3 |
| Weight | 4-6g depending on size |
Compatibility
Works exclusively through Oura mobile app
Featured in our guides
Compare Oura Ring 4 with
See how it stacks up against other smart rings — specs, price, and our verdict side by side.
