Oura
Oura Ring Gen 4
Specs not independently verified
Starting at$299
Design & Build9.5
Battery7 days
SensorsHRV, Temp, SpO2
Verdict
The market leader in invisible health tech, tracking sleep and recovery with extreme precision.
Where it wins, where it doesn't
Pros
- Unobtrusive
- Excellent sleep data
Cons
- Subscription required
Ideal forBiohackersFitness Enthusiasts
Specifications
| Battery | 7 days |
|---|---|
| Sensors | HRV, Temp, SpO2 |
In-Depth Review
Wearables in 2026 shifted toward 'invisible' tech. The Oura Ring Gen 4 is less obtrusive than a smartwatch but offers superior health telemetry and AI-driven metabolic baselines.
Frequently Asked Questions
Who is Oura Ring Gen 4 for?↓
Oura Ring Gen 4 is a fit for biohackers and Fitness Enthusiasts.
What are the drawbacks of Oura Ring Gen 4?↓
The trade-offs we record are: Subscription required.
What does Oura Ring Gen 4 do well?↓
Unobtrusive and Excellent sleep data.
How much does Oura Ring Gen 4 cost?↓
$299, as recorded in this index. Prices move; check the retailer for the current figure.
What is the Fathom Layer design score for Oura Ring Gen 4?↓
Oura Ring Gen 4 scores 9.5 out of 10. The score is assigned by a human against published criteria and placement is never sold — see the methodology page for how it is built.
Alternatives to consider
See all alternatives →Further reading
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