WHOOP
Pick WHOOP if
- You already train by strain numbers
- No display is a feature, not a bug
- Monthly subscription model is acceptable
WHOOP vs Garmin
WHOOP is a screenless strap on a monthly subscription, reading 14/27 signals — recovery, strain, sleep, HRV, SpO2. Garmin is a watch you buy once, reading 19/27 including Body Battery and 24/7 stress.
WHOOP
14/27API signals exposed
Screenless strap
vs
GARMIN
19/27API signals exposed
Athletic / outdoor watch
QUICK VERDICT
WHOOP and Garmin both target serious training — but the value model is opposite. WHOOP charges monthly and prefers no display. Garmin charges once and gives you a screen, GPS, Body Battery, ECG, floors. If you already train by strain numbers, WHOOP fits the workflow. If you want the broadest signal stack and one-time payment, Garmin.
COVERAGE BY CATEGORY
Where each brand actually wins
Per-category breakdown of API signals.
SIGNAL BY SIGNAL
The full matrix
| Signal | WHOOP | Garmin |
|---|---|---|
| Heart & Vitals | ||
| Resting HR | ✓ | ✓ |
| HRV | ✓ | ✓ |
| SpO2 | ✓ | ✓ |
| Respiratory Rate | ✓ | ✓ |
| Skin Temperature | ✓ | ✓ |
| Body Temperature | — | — |
| Blood Pressure | — | — |
| ECG · AFib | — | ✓ |
| Sleep | ||
| Sleep duration | ✓ | ✓ |
| Sleep stages | ✓ | ✓ |
| Sleep score | ✓ | ✓ |
| 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 | — | — |
Verified against vendor developer documentation.
WHICH ONE FOR YOU
Pick the one that matches your priority
GARMIN
Pick Garmin if
- You want a screen, GPS, ECG, Body Battery
- One-time payment
- You're comfortable uploading GDPR ZIP weekly
WHOOP+GARMIN
Pick both if
- WHOOP for recovery + strain modeling
- Garmin for GPS workouts + Body Battery + ECG
- Both feeds merge in MyBodyAI when approvals land
FAQ
Frequently asked questions
Can I connect both WHOOP and Garmin to MyBodyAI?
Yes. MyBodyAI merges signals from every connected source and uses richer-source-wins per field. WHOOP is built, waiting for vendor app approval, Garmin is live via GDPR upload.
Which one covers more MyBodyAI signals?
WHOOP reads 14 of 27 tracked signals. Garmin reads 19. The matrix above breaks the count down by category — they often win different categories.
Do the affiliate links change which device you recommend?
No. Recommendations on this page come from signal coverage and developer-API capability. Affiliate commissions never change the matrix, the pick-X-if cards, or your MyBodyAI subscription price.
What happens if I switch from WHOOP to Garmin later?
Your MyBodyAI history is preserved per signal. New data starts arriving from Garmin the moment you connect it. Disconnecting WHOOP pauses the old feed without deleting past data.
WHERE TO BUY
Check prices at the source
Direct links to each vendor's store. Some are affiliate.
- WHOOP Official store Check at WHOOP →
- GARMIN Official store Check at Garmin →
MORE COMPARISONS
Explore other pairs
OPTIONAL — IF YOU WANT MORE
Want one place that merges both feeds?
MyBodyAI merges these signals into Biological Age, Recovery and 9 other indices.
Try MyBodyAI free →