Best Fitness Trackers · head-to-head
Oura Ring 4 vs WHOOP 4.0
A sourced, side-by-side spec comparison. Oura Ring 4 is cheaper at $349. Every spec and price links to its source.
Side by side
| Oura Ring 4 | WHOOP 4.0 | |
|---|---|---|
| US price | $349 (US starting price for titanium finish. Ceramic models are higher. Plus mandatory Oura Membership at $5.99/month ($69.99/year) after first free month.) | — (No up-front hardware cost. Requires active WHOOP membership: previously $30/month (monthly) or ~$199/year (One tier annual). WHOOP 4.0 hardware bundled with membership; exact current MSRP not applicable as device is sold only with subscription. priceUsd set null — subscription-only model.) |
| Brand | Oura | WHOOP |
| Released | 2024-10 | 2021-10 |
| form factor | ring | band |
| display | — | — |
| battery days | 8 | 5 |
| gps | false | false |
| spo2 | true | true |
| ecg | false | false |
| subscription required | true | true |
| water resistance m | 100 | 10 |
| release | 2024 | 2021 |
Sources — Oura Ring 4: support.ouraring.com (verified 2026-06-15). WHOOP 4.0: dcrainmaker.com (verified 2026-06-15).