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Suunto vs Garmin

Both target outdoor athletes. Suunto reads 15/27 signals (waitlist), Garmin reads 19/27. Suunto wins on outdoor + dive specialization. Garmin wins on Body Battery, 24/7 stress, ECG, and a larger app ecosystem.

SUUNTO 15/27API signals exposed Outdoor + dive watch

GARMIN 19/27API signals exposed Athletic / outdoor watch

QUICK VERDICT

Suunto and Garmin are close in spirit but Garmin reads more signals overall (see the matrix below). Suunto fills the outdoor and dive niche better; Garmin fills the all-round athletic and lifestyle niche better. For MyBodyAI, the deciding factor is usually Body Battery and 24/7 stress, both of which Garmin reads and Suunto does not.

COVERAGE BY CATEGORY

Where each brand actually wins

Per-category breakdown of API signals.

Heart & Vitals

Suunto 4/8

Garmin 6/8

Sleep

Suunto 3/3

Garmin 3/3

Activity

Suunto 5/6

Garmin 6/6

Fitness & Recovery

Suunto 3/6

Garmin 4/6

Body Composition

Suunto 0/4

Garmin 0/4

SIGNAL BY SIGNAL

The full matrix

Signal	Suunto	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

SUUNTO

Pick Suunto if

You're an outdoor or dive athlete
Suunto Cloud sync already works for you
FIT files into MyBodyAI is acceptable

GARMIN

Pick Garmin if

Body Battery + 24/7 stress + ECG matter
Larger ecosystem (Connect IQ, apps)
You're fine uploading a GDPR ZIP weekly

SUUNTO+GARMIN

Pick both if

Garmin watch for daily + indoor activity
Suunto watch for outdoor + dive sessions
Both feeds merge in MyBodyAI when Suunto launches

FAQ

Frequently asked questions

Can I connect both Suunto and Garmin to MyBodyAI?

Yes. MyBodyAI merges signals from every connected source and uses richer-source-wins per field. Suunto is built, waiting for vendor app approval, Garmin is live via GDPR upload.

Which one covers more MyBodyAI signals?

Suunto 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 Suunto to Garmin later?

Your MyBodyAI history is preserved per signal. New data starts arriving from Garmin the moment you connect it. Disconnecting Suunto pauses the old feed without deleting past data.

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