The subscription-free Oura alternative for Android — comfortable and competent, if locked to the Samsung ecosystem.
Best for Android users who want Oura-style ring tracking without a subscription.
The Samsung Galaxy Ring is the closest thing to an Oura Ring 4 without the subscription. It is a comfortable ring with competent overnight HRV and sleep tracking — but it is tied to Samsung Health and Android, and its accuracy trails Oura.
How we tested: Evidence-based assessment — scored from manufacturer specifications, independent 2026 reviews and published validation literature. Not hands-on tested by ONDA.
Overnight optical HRV from the ring — competent, though independent validation still favours the Oura Ring 4.
Sensor and signal quality
7.5
Optical PPG in a ring form factor; a clean overnight signal.
Sleep tracking accuracy
7.5
Good sleep tracking, a small step behind the category-leading Oura.
Data access and export
6.0
Built around Samsung Health with no open API and limited export — data largely stays inside the app.
Wearability and battery
8.0
A comfortable ring for around-the-clock wear, with a multi-day battery.
App and software experience
7.0
Samsung Health is clear enough, but tied to the Samsung and Android ecosystem.
Value
8.0
399 USD with no subscription — the standing cost advantage over the Oura Ring 4.
Pros
+No subscription — every feature unlocked at purchase
+Comfortable ring with a multi-day battery
+Clean integration for Samsung and Android users
+Competent overnight HRV and sleep tracking
Cons
−Android and Samsung Health only — no iPhone support
−Closed data: no open API, limited export
−Accuracy trails the Oura Ring 4
−Best value only realised inside the Samsung ecosystem
Price: $399 one-time; no subscription (as of 2026-05-15)
Where it leads
The Samsung Galaxy Ring is the most direct alternative to the Oura Ring 4, and its headline advantage is simple: no subscription. The purchase unlocks every feature for good, where Oura keeps charging monthly. As hardware it is a comfortable, well-made ring with a multi-day battery and competent overnight HRV and sleep tracking — for a Samsung phone owner already inside Samsung Health, it is a natural, friction-free choice.
Where it falls short
The ring is tied to its ecosystem. It is built around Samsung Health and Android — there is no iPhone support — and data access is comparatively closed: no open developer API, limited export, your numbers largely staying inside Samsung's app. On raw accuracy it trails the Oura Ring 4, which still holds the strongest independent sleep-stage validation in the ring category.
Who it is for
Choose the Samsung Galaxy Ring if you are an Android — ideally Samsung — user who wants Oura-style ring tracking without a perpetual subscription, and you are content to keep your data inside Samsung Health. iPhone users, or anyone who wants the most accurate ring or open data, should look at the Oura Ring 4.