Oura Oura Ring 4 vs Amazfit Helio Ring
Oura Oura Ring 4 ($349) vs Amazfit Helio Ring ($299) — side-by-side specs, weight, pros and cons to help you pick the right smart ring.
Spec-by-spec
| Spec | Oura Oura Ring 4 | Amazfit Helio Ring |
|---|
| Price | $349 | $299 |
| Weight | 6g | 3.8g |
| Form | Ring (sizes 4–15) | — |
| Battery | 8 days | 3–4 days |
| Sensors | HRV, Temp, SpO2, HR | PPG, Temp, Accel |
| Subscription | $5.99/mo | — |
| WR | 100m | 5ATM |
| Weight | 4–6g | — |
| Material | — | Titanium |
| Sub | — | None |
| App | — | Zepp |
Pros & Cons
Oura Oura Ring 4
- Most discreet health tracker
- 8-day battery
- Excellent HRV + sleep data
- No wrist bulk
- Works alongside any watch
- Subscription required $5.99/mo
- No display
- Ring sizing requires order kit
Amazfit Helio Ring
- Best readiness scoring in class
- Cross-device Amazfit integration
- No subscription
- Sleep coaching AI
- Trusted Zepp Health algorithms
- 3-4 day battery behind competitors
- Fewer sizes than Oura
- App less polished than Samsung
Amazfit Helio Ring is the better value at $299. Both are part of our curated smart ring index — tap through to check current pricing.