First-generation product — no release history to base predictions on
Best for: Health-focused wearers who want continuous biometric tracking without a watch on their wrist. Ideal for sleep researchers, recovery-focused athletes, and anyone who finds watches uncomfortable at night. Works with both iPhone and Android. The subscription is optional but unlocks most of the app's value.
Full details →Reaching maturity, next model expected soon
Best for: iPhone users who want the most capable smartwatch health experience available. Ideal for anyone who values medical-grade monitoring (ECG, blood pressure, SpO2), a premium always-on display, and the best Apple Watch workout tracking. If health is your priority, this is the one to get.
Full details →| Oura Ring | Apple Watch | |
|---|---|---|
| Tier | Smart Ring | Smartwatch |
| Platform | iOS & Android | iOS only |
| Battery | 7 days | 1 days |
| Always-on display | ❌ | ✅ |
| GPS | ❌ | ✅ |
| Cellular | ❌ | ✅ |
| Released | Oct 15, 2024 | Sep 19, 2025 |
| Cycle length | — | 364 days |
| Cycle advice | neutral | neutral |
| Deals advice | neutral | neutral |
| Next model | — | Apple Watch Series 12 (Expected fall 2026) |
Oura has refined its ring sensors across four generations. The Ring 4's flattened LED array delivers more accurate SpO2 and heart rate data than previous generations, especially during sleep.
Up to 8 days of continuous 24/7 tracking between charges in a ring that weighs as little as 4 grams. No screen to drain — just sensors running around the clock.
The Oura app supports iPhone and Android equally. Core health data syncs to Apple Health, Google Health Connect, and 40+ third-party fitness apps.
The Series 11 is the first mainstream smartwatch to offer FDA-cleared hypertension (high blood pressure) detection — a feature that could flag silent health risks.
At 9.7mm, the Series 11 is significantly slimmer than previous models — noticeably lighter on the wrist for all-day and sleep tracking.
On-demand ECG, continuous blood oxygen monitoring, and sleep apnea detection (FDA-cleared) make this one of the most medically relevant consumer wearables available.