All 8 major smart rings compared on every spec that matters. Updated April 2026.
| Ring | Score | Price | Subscription | Battery Life | Weight | Water Rating | Heart Rate | SpO2 | HRV | Sleep Tracking | Temp Sensor | Works with | Review |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oura Ring 4 Best Overall |
9.2 | $349–$499 | $6/mo required | 8 days | 4–6g | 100m / ATM10 | ✓ 24/7 | ✓ | ✓ | ✓ Advanced | ✓ | iOS + Android | Full Review → |
| Samsung Galaxy Ring No Subscription |
8.8 | $399 | None | 7 days | 2.3–3g | 100m / ATM10 | ✓ 24/7 | ✓ | ✓ | ✓ Good | ✓ | Android (Galaxy best) | Full Review → |
| Ultrahuman Ring AIR Best for Athletes |
8.5 | $349 | None | 6 days | 2.4g | 100m / ATM10 | ✓ 24/7 | ✓ | ✓ | ✓ Very Good | ✓ | iOS + Android | Full Review → |
| RingConn Gen 3 Best Value |
8.2 | $149 | None | 10 days | 3–4g | 100m / ATM10 | ✓ 24/7 | ✓ | ✓ | ✓ Good | ✓ | iOS + Android | Full Review → |
| Movano Evie Ring Best for Women |
8.0 | $269 | None | 4 days | 3–5g | 100m / ATM10 | ✓ 24/7 | ✓ | ✓ | ✓ Good | ✓ | iOS + Android | Full Review → |
| Circular Ring Slim Most Stylish |
7.8 | €299 | None | 4 days | 2.8g | 50m / ATM5 | ✓ 24/7 | ✓ | ✓ | ✓ Good | ✓ | iOS + Android | Full Review → |
| Amazfit Helio Ring | 7.6 | $299 | None | 5 days | 3.65g | 100m / ATM10 | ✓ 24/7 | ✓ | ✓ | ✓ Good | ✓ | iOS + Android | Full Review → |
| Noise Luna Ring Budget Pick |
7.0 | $99 | None | 7 days | 3.5g | 50m / ATM5 | ✓ 24/7 | ✓ | ✓ | ✓ Basic | ✗ | iOS + Android | Full Review → |
Oura Ring 4 — The most complete health tracking package, with the most accurate sleep staging and deepest data insights. Worth the subscription for serious health trackers.
Samsung Galaxy Ring — Excellent health tracking, no monthly fee, works for life. Best for those who resent ongoing costs. Galaxy ecosystem users get extra features.
RingConn Gen 3 — At $149 with no subscription, it delivers 85% of what Oura offers at 43% of the price. Genuinely impressive for the money.
Ultrahuman Ring AIR — The lightest premium ring available (2.4g). Superior movement detection and the Athlete Index metric make this a serious training tool.
Movano Evie Ring — FDA-cleared, unique open-band design, cycle tracking built-in. The only ring designed from the ground up for the female body.
Circular Ring Slim — If you want a ring that looks like real jewellery first and a health tracker second, Circular wins. The slimmest profile of any ring reviewed.
| Ring | Price | Monthly Fee | Year 1 Total | Year 3 Total | 5-Year Total |
|---|---|---|---|---|---|
| Oura Ring 4 | $349 | $6/mo ($72/yr) | $421 | $565 | $709 |
| Samsung Galaxy Ring | $399 | None | $399 | $399 | $399 |
| Ultrahuman Ring AIR | $349 | None | $349 | $349 | $349 |
| RingConn Gen 3 | $149 | None | $149 | $149 | $149 |
| Movano Evie Ring | $269 | None | $269 | $269 | $269 |
| Circular Ring Slim | €299 | None | €299 | €299 | €299 |
| Amazfit Helio Ring | $299 | None | $299 | $299 | $299 |
| Noise Luna Ring | $99 | None | $99 | $99 | $99 |
* Prices correct as of April 2026. Ring replacement and case charging costs not included.