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Oura vs Garmin

Oura is a ring with 17/27 signal coverage (waitlist). Garmin is a watch with 19/27 plus the most unique signals — Body Battery and 24/7 stress. They overlap on sleep, HRV, SpO2, respiratory rate.

OURA 17/27API signals exposed Smart ring

GARMIN 19/27API signals exposed Athletic / outdoor watch

QUICK VERDICT

Different shapes for different jobs. Oura wins on sleep depth and gives you cardiovascular age. Garmin wins on athletic activity, Body Battery, 24/7 stress, ECG. Once both are connected to MyBodyAI, the combined feed reaches 21/27 signals — among the most complete combinations available.

COVERAGE BY CATEGORY

Where each brand actually wins

Per-category breakdown of API signals.

Heart & Vitals

Oura 5/8

Garmin 6/8

Sleep

Oura 3/3

Garmin 3/3

Activity

Oura 5/6

Garmin 6/6

Fitness & Recovery

Oura 4/6

Garmin 4/6

Body Composition

Oura 0/4

Garmin 0/4

SIGNAL BY SIGNAL

The full matrix

Signal	Oura	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

OURA

Pick Oura if

Sleep depth is your priority
You won't wear a watch to bed
You're comfortable joining a waitlist

GARMIN

Pick Garmin if

You want Body Battery + 24/7 stress + GPS
Multi-week battery and outdoor GPS matter
You're comfortable uploading a GDPR ZIP weekly

OURA+GARMIN

Pick both if

Oura at night + Garmin during the day
Most complete combo I can wire today (21/27)
Garmin GDPR upload until OAuth opens

FAQ

Frequently asked questions

Can I connect both Oura and Garmin to MyBodyAI?

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

Which one covers more MyBodyAI signals?

Oura reads 17 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 Oura to Garmin later?

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

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