First-generation product — no release history to base predictions on
Best for: Budget-conscious health trackers who want the core benefits of a smart ring — sleep insights, HRV, SpO2, and continuous heart rate — without Oura's subscription or Samsung's Android-only limitation. A strong pick for first-time smart ring buyers who want to try the form factor without a large financial commitment.
Full details →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 →| RingConn Gen 2 | Oura Ring | |
|---|---|---|
| Tier | Smart Ring | Smart Ring |
| Platform | iOS & Android | iOS & Android |
| Battery | 10 days | 7 days |
| Always-on display | ❌ | ❌ |
| GPS | ❌ | ❌ |
| Cellular | ❌ | ❌ |
| Released | Sep 9, 2024 | Oct 15, 2024 |
| Cycle length | — | — |
| Cycle advice | neutral | neutral |
| Deals advice | neutral | neutral |
| Next model | — | — |
All health tracking features are included at no extra cost. No monthly membership required — all sleep staging, HRV trends, and health reports are free in the app.
The ring itself lasts 10–12 days on a charge. With the included charging case, total battery extends to 150+ days — the longest effective battery life in the smart ring category.
RingConn Gen 2 is one of the few smart rings under $400 to include sleep apnea risk monitoring, using SpO2 and respiratory rate sensors to flag potential breathing disruptions overnight.
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.