Pick Oura if
- Sleep is your single most important signal
- You hate wearing a watch to bed
- SpO2 + temperature + readiness matter
Both are wearables without a watch face. Oura reads 18/33 signals from a ring, WHOOP reads 19/33 from a strap. Oura connects to MyBodyAI over OAuth today; WHOOP has no MyBodyAI integration yet and is here for comparison only.
Oura is the better choice if sleep is the most important signal in your life — the ring stays on the finger without wrist irritation, reads sleep stages, SpO2, temperature, plus daily readiness, stress, and a cardiovascular age estimate. WHOOP is the better choice if you train by strain and recovery — no display means it lives on you 24/7, and its recovery-score model is the brand's flagship.
Per-category breakdown of health signals exposed by each vendor's developer API. The number is breadth, not quality.
| Signal | Oura | WHOOP |
|---|---|---|
| Heart & Vitals | ||
| Resting HR | ✓ | ✓ |
| HRV | ✓ | ✓ |
| SpO2 | ✓ | ✓ |
| Respiratory Rate | ✓ | ✓ |
| Skin Temperature | ✓ | ✓ |
| Body Temperature | — | — |
| Blood Pressure | — | ✓ |
| ECG recording | — | ✓ |
| AFib detection | — | ✓ |
| Vascular age | — | — |
| Sleep | ||
| Sleep duration | ✓ | ✓ |
| Sleep stages | ✓ | ✓ |
| Sleep score | ✓ | ✓ |
| Sleep efficiency | ✓ | ✓ |
| Sleep apnea index | — | — |
| Activity | ||
| Steps | ✓ | ✓ |
| Active minutes | ✓ | — |
| Calories | ✓ | ✓ |
| Activities | ✓ | ✓ |
| Floors climbed | — | — |
| Distance | ✓ | — |
| Fitness & Recovery | ||
| VO2max | ✓ | ✓ |
| Training load | — | ✓ |
| Recovery / Readiness | ✓ | ✓ |
| Body Battery | — | — |
| Stress (continuous) | ✓ | ✓ |
| Cardiovascular age | ✓ | — |
| Body Composition | ||
| Weight | — | — |
| Body fat % | — | — |
| Muscle mass | — | — |
| Hydration | — | — |
| Bone mass | — | — |
| Visceral fat | — | — |
Verified against vendor developer documentation and MyBodyAI backend code. This counts what a brand's API exposes, which is not the same question as what one device measures: the device catalog scores each model's own hardware, so its numbers differ.
Current Oura models Oura Ring 5 (2026), Oura Ring 4 Ceramic (2025), Oura Ring 4 (2024), all 3 Oura devices
Current WHOOP models WHOOP 5.0 (2025), WHOOP MG (2025), all 2 WHOOP devices
Pick Oura if
Pick WHOOP if
Pick both if
For most people it is one or the other. Both are daily-wear devices that track the same core things, heart rate, sleep and activity, so wearing both is redundant. Use the matrix above to pick the one that wins the categories you care about.
Oura tracks 18 of the 33 signals I compare, WHOOP tracks 19. The matrix above breaks it down by category, and they often win different categories.
Only if WHOOP wins the categories you actually care about. If you already own Oura and it covers your main goal, the upgrade is rarely worth it. The matrix above shows exactly what changes.
From each brand's official spec sheets and support pages, cross-checked against independent hands-on reviews (DC Rainmaker, the5krunner, Tom's Guide). Signal-level edge cases are noted in the matrix, not hidden behind a single check mark.
Links to each vendor's store. None of them changed any pick above.
MyBodyAI is what I build with these signals — it pulls from any combination of the brands above and derives Biological Age and 12 health indices from the raw numbers. Free to try, no card. It's optional — the comparison above stands on its own.
Start your 7-day trial →