Samsung Galaxy Ring vs Oura Ring 4
 Samsung Galaxy Ring |  Oura Ring 4 | |
| The short answer | About the same A titanium smart ring that tracks sleep, heart rate and workouts without a screen, with up to 7 days per charge. It needs a compatible Galaxy phone. | About the same Oura's store page promotes a newer ring that is 40% smaller than Ring 4. Compare it before buying the Ring 4. |
| China price | No price yet | Not sold in China |
| US price (pre-tax) | $299.99samsung.com · Checked 11-05 21:07 | $249Best Buy · Checked 11-05 21:07 |
| Gap (US pre-tax) | — | — |
| What differs between versions | ||
| China vs US version | CN No official China sale US US store page | — |
| Key specs | ||
| Subscription | No subscription fee; all health data in Samsung Health is free | Oura Membership, billed monthly or annually |
| Health features | Sleep tracking (with snore detection), heart-rate tracking, Energy Score, cycle tracking, automatic workout detection | Sleep Score, Sleep Stages, blood oxygen sensing, nighttime breathing, heart rate and HRV, stress, women's health |
| Battery life | Up to 7 days per charge; up to 14 days with a full charging case charge | 5–8 days; typically charges in 20–80 minutes, depending on battery level |
| Phone compatibility | Requires a Samsung Galaxy smartphone with a registered Samsung account | iOS and Android |
| Sizes | Sizes 5 to 15 (per Samsung US support) | US sizes 4-15; use the Oura Ring 4 sizing kit to confirm fit (sizing differs by generation) |
| Water resistance | 10ATM (~100 m, ISO22810) + IP68 (1.5 m freshwater for 30 min in lab conditions); not suitable for high-pressure water activities or diving | Up to 100 m / 328 ft |