Oura Ring 4 vs. Samsung Galaxy Ring
The numbers.
WELLNESS
Marketed as a general wellness device. Not FDA cleared, approved, or evaluated for any medical claim.
- Price
- $349–$499
- Trustpilot
- 4.0 / 5
- Founded
- 2013
- HQ
- Oulu, Finland
WELLNESS
Marketed as a general wellness device. Not FDA cleared, approved, or evaluated for any medical claim.
- Price
- $299.99–$399.99
- Founded
- 2024 (product), Samsung 1969
- HQ
- Suwon, South Korea
Which route is yours?
Choose Oura Ring 4 if you prioritise the trade-offs in column A — see the bench above and the long-form below.
Choose Samsung Galaxy Ring if column B's trade-offs fit your stack better.
Side-by-side, in detail.
The Matchup
This is the most-searched smart ring comparison in 2026 — the category creator vs the tech giant. Both are titanium, both track sleep/HRV/SpO2/temperature, and neither requires you to worry about Oura patent lawsuits (Samsung’s patent portfolio gives it immunity). The difference comes down to ecosystem, subscription, and algorithm maturity.
Head-to-Head Comparison
| Feature | Oura Ring 4 | Samsung Galaxy Ring |
|---|---|---|
| Price | From $349 | $399 |
| Subscription | $5.99/mo (required) | None |
| 3-Year TCO | $565 | $399 |
| Phone compatibility | iOS + Android | Samsung Galaxy only |
| Sleep tracking | Best-in-class (validated) | Good (improving via OTA) |
| HRV accuracy | ±5ms vs Polar H10 | TBD (limited published data) |
| Readiness score | Yes (deep, 10-year algorithm) | Yes (Energy Score, newer) |
| SpO2 | Yes (nighttime) | Yes (nighttime) |
| Temperature | Yes (Natural Cycles integration) | Yes |
| Cycle tracking | Yes (FDA-cleared via Natural Cycles) | Yes (Samsung Health) |
| Battery life | ~6 days | ~7 days |
| Size range | 4–15 | 5–13 |
| Weight | 4–6g | 2.9–3.0g |
| FDA status | General wellness | General wellness |
| Data portability | Export via app (limited) | Samsung Health (ecosystem-locked) |
| US availability | ✓ | ✓ |
Where Oura Wins
- Sleep algorithm maturity. 10 years of iteration, multiple peer-reviewed validation studies. Oura’s sleep staging has ~79% agreement with PSG — the published gold standard for consumer rings.
- iOS support. If you use an iPhone, Samsung Galaxy Ring is not an option.
- Natural Cycles integration. The only smart ring with an FDA-cleared contraceptive pathway (via the app, not the hardware).
- Wider size range. Sizes 4 and 14–15 are Oura-only.
Where Samsung Wins
- No subscription. $0/month, forever. All features included. Your data isn’t held hostage.
- 3-year TCO. $399 vs $565. Samsung is 29% cheaper over 3 years.
- Ecosystem integration. If you have a Galaxy Watch + Galaxy phone, the health data ecosystem is seamless.
- Lighter weight. 2.9g vs 4–6g. Barely noticeable.
- Patent immunity. Samsung’s patent portfolio means Oura can’t litigate against it. Your purchase isn’t at risk of future market disruption.
The Verdict
No clear winner — it depends on your phone.
- iPhone user? Oura Ring 4 is your only option (among these two). The subscription tax is the cost of iOS compatibility.
- Samsung Galaxy user who values no subscription? Galaxy Ring. You save $166 over 3 years and get improving AI features via OTA.
- Samsung Galaxy user who wants the deepest sleep data? Oura Ring 4 still has the more mature algorithm. Whether that’s worth $5.99/mo to you is the question.
We’ll update this comparison with independent HRV accuracy data (Polar H10 + Kubios) for both rings when hands-on testing is complete.
Changelog
- 2026-04-11: Initial comparison published.