Amazfit
Pick Amazfit if
- Price is the binding constraint
- Long battery on a consumer watch matters
- 24/7 stress index without monthly fees
Amazfit vs Garmin
Amazfit reads 15/27 signals from a budget Zepp OS watch and ships 24/7 stress out of the box. Garmin reads 19/27 from a far broader athletic platform — Body Battery, training load, ECG, AFib screening, floors climbed — and uses manual GDPR upload until OAuth opens.
Amazfit
15/27API signals exposed
Zepp OS watch · partner API
vs
GARMIN
19/27API signals exposed
Athletic / outdoor watch
QUICK VERDICT
If price is the binding constraint and you want most of the daily-health signal stack today, Amazfit is the better budget pick — same OAuth setup as Garmin's eventual one, and 24/7 stress works out of the box. If Body Battery, training load, ECG with AFib screening, or floors climbed matter to you, Garmin is the more complete athletic watch even with the weekly GDPR ZIP upload until its OAuth flips on.
COVERAGE BY CATEGORY
Where each brand actually wins
Per-category breakdown of API signals.
SIGNAL BY SIGNAL
The full matrix
| Signal | Amazfit | 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
- Body Battery + 24/7 stress + training load matter
- ECG with AFib screening on the wrist
- Floors climbed and the Connect IQ ecosystem
Amazfit+GARMIN
Pick both if
- Amazfit when you want the cheap 24/7 stress baseline
- Garmin for Body Battery + ECG + floors + GPS
- Combined feed reaches 20/27 unique signals
FAQ
Frequently asked questions
Can I connect both Amazfit and Garmin to MyBodyAI?
Yes. MyBodyAI merges signals from every connected source and uses richer-source-wins per field. Amazfit is built, waiting for vendor app approval, Garmin is live via GDPR upload.
Which one covers more MyBodyAI signals?
Amazfit reads 15 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 Amazfit to Garmin later?
Your MyBodyAI history is preserved per signal. New data starts arriving from Garmin the moment you connect it. Disconnecting Amazfit 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.
- Amazfit Official store Check at Amazfit →
- Amazfit Official store Amazfit →
- 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 →