OURA
Pick Oura if
- Sleep depth is your priority
- You won't wear a watch to bed
- You're comfortable joining a waitlist
Oura vs Garmin
Oura is a ring with 17/27 signal coverage (waitlist). Garmin is a watch with 20/27 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
vs
GARMIN
20/27API 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.
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
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
Should I choose Oura 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?
Oura tracks 17 of the 27 signals I compare, Garmin tracks 20. The matrix above breaks it down by category, and they often win different categories.
Is it worth switching from Oura to Garmin?
Only if Garmin wins the categories you actually care about. If you already own Oura and it covers your main goal, the upgrade is rarely worth it. The matrix above shows exactly what changes.
How did you compare Oura and Garmin?
From each brand's official spec sheets and support pages, cross-checked against independent reviews like DC Rainmaker and The Quantified Scientist and peer-reviewed accuracy studies. Signal-level edge cases are noted in the matrix, not hidden behind a single check mark.
WHERE TO BUY
Check prices at the source
Direct links to each vendor's store. No affiliate links.
- OURA Official store Check at Oura →
- 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.
Start your 7-day trial →