Smart Rings · Oura
Oura Ring 4
Gen 4 · 2024
Best-in-test sleep staging and HRV, the most polished app — held back only by the monthly fee.
9.0
FitHQ score / 10
The verdict in brief
Pros
- Best-in-test sleep staging and HRV
- Most polished app and insights
- Comfortable ~7-day wear
Cons
- Requires a monthly subscription
- No on-device display
Specs
- ~7-day battery
- Sleep staging
- Subscription
| Battery life | ~7 days |
|---|---|
| Form | Titanium ring |
| Sleep tracking | Best-in-test staging |
| Subscription | Required ($5.99/mo) |
| Water resistance | 100m |