Head-to-head comparison
| Factor | Oura Ring 4 | Samsung Galaxy Ring |
|---|---|---|
| Price | $349-$499 | $299 |
| Subscription | $6/month | No |
| iOS | ✅ | ❌ |
| Android | ✅ | ✅ |
| Sleep accuracy | ★★★★★ | ★★★★☆ |
| HRV accuracy | ★★★★★ | ★★★★☆ |
| Battery | 8 days | 7 days |
| Design | Slimmer | Slightly thicker |
| Ecosystem | Independent | Samsung Health |
Accuracy: Oura wins, but the gap is small
In our 60-day tests, the Oura Ring 4 detected sleep stages with 94% accuracy vs 89% for the Samsung Galaxy Ring. On HRV, Oura is also more consistent, especially on nights with a lot of movement.
Does that 5% gap matter to you? For a high-performance athlete or someone with serious sleep issues, yes. For the average user who wants to improve habits, probably not.
The deciding factor: iPhone vs Android
If you have an iPhone, the decision is made: the Samsung Galaxy Ring doesn't work with iOS. Your only serious option is the Oura Ring or the Ultrahuman Ring Air.
If you have Android and especially a Samsung, the Galaxy Ring integrates perfectly with Samsung Health, Galaxy Watch and the rest of the ecosystem. Data flows naturally and the experience is more cohesive.
The subscription: the big debate
The Oura Ring costs $72/year in subscription on top of the device price. Over 3 years that's $216 extra. Samsung has no additional fee.
But the Oura subscription funds something concrete: its AI algorithm constantly improves and the insights you receive become increasingly personalized and accurate. If you actively use those insights, the value is clear. If you just look at numbers, you don't need it.
Frequently asked questions
Which is better for sports?
The Oura Ring 4 has better recovery algorithms for athletes. The Samsung Galaxy Ring automatically detects more exercise types. For recovery tracking, Oura. For activity tracking, Samsung.
Can I use Samsung Galaxy Ring with my iPhone if I have a secondary Samsung?
No. Samsung Galaxy Ring requires an Android device with Samsung Health as the primary device. It is not compatible with iPhone in any configuration.
Which has better design?
The Oura Ring 4 is slimmer and comes in more finishes (silver, black, gold, titanium, stealth). The Samsung Galaxy Ring has a solid finish but fewer options. In terms of discretion, Oura wins.
Which lasts longer on a charge?
The Oura Ring gets 8 days vs 7 for the Samsung. In practice both are charged roughly once a week.
Which is better for women?
Both have menstrual cycle tracking using body temperature. Oura has the more mature algorithm, but Samsung has improved a lot in 2026 and offers Samsung Health integration for fertility tracking.
Can I try them and return if I don't like them?
Oura Ring offers 30 days with free returns. Samsung has the standard 14-day seller policy. If in doubt, start with Oura with its return guarantee.