SUUNTO
Pick Suunto if
- You're an outdoor or dive athlete
- Suunto Cloud sync already works for you
- Outdoor and dive features decide it for you
Suunto vs Garmin
Both target outdoor athletes. Suunto reads 13/33 signals but has no MyBodyAI integration yet, Garmin reads 27/33. Suunto wins on outdoor + dive specialization. Garmin wins on Body Battery, 24/7 stress, ECG, and a larger app ecosystem.
SUUNTO
13/33signals its devices cover
Outdoor + dive watch
vs
GARMIN
27/33signals its devices cover
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 health signals exposed by each vendor's developer API. The number is breadth, not quality.
SIGNAL BY SIGNAL
The full matrix
| Signal | Suunto | Garmin |
|---|---|---|
| Heart & Vitals | ||
| Resting HR | ✓ | ✓ |
| HRV | ✓ | ✓ |
| SpO2 | ✓ | ✓ |
| Respiratory Rate | — | ✓ |
| Skin Temperature | — | ✓ |
| Body Temperature | — | — |
| Blood Pressure | — | ✓ via Index BPM |
| 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 | — | ✓ via Index S2 |
| Body fat % | — | ✓ via Index S2 |
| Muscle mass | — | ✓ via Index S2 |
| Hydration | — | ✓ via Index S2 |
| Bone mass | — | ✓ via Index S2 |
| 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 Suunto models Suunto Race 2 (2025), Suunto Run (2025), Suunto Vertical 2 (2025), Suunto Ocean (2024), all 9 Suunto devices
Current Garmin models CIRQA Smart Band (2026), Forerunner 170 (2026), Forerunner 70 (2026), Forerunner 570 (47mm) (2025), all 28 Garmin devices
WHICH ONE FOR YOU
Pick the one that matches your priority
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
- Only the Garmin half reaches MyBodyAI today; Suunto has no integration yet
FAQ
Frequently asked questions
Should I choose Suunto or Garmin?
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.
Which one tracks more health signals?
Suunto tracks 13 of the 33 signals I compare, Garmin tracks 27. The matrix above breaks it down by category, and they often win different categories.
Is it worth switching from Suunto to Garmin?
Only if Garmin wins the categories you actually care about. If you already own Suunto and it covers your main goal, the upgrade is rarely worth it. The matrix above shows exactly what changes.
How did you compare Suunto and Garmin?
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.
WHERE TO BUY
Check prices at the source
Links to each vendor's store. None of them changed any pick above.
MORE COMPARISONS
Explore other pairs
OPTIONAL — IF YOU WANT MORE
Want one place that merges both feeds?
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.
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