Wearables · Devices
Garmin: health features and limitations
A factual overview of Garmin health features: optical heart rate, Pulse Ox, HRV status, Body Battery, VO2 max estimates and the ECG app on selected models.
Written by LON6EVITY Editorial Team · Last updated
Measured with sensors
Garmin wearables use optical heart rate sensors and motion sensors; many models also offer Pulse Ox, which Garmin describes as estimating blood oxygen saturation.
Estimated metrics
Garmin describes several features as estimates built on those sensors: VO2 max (fitness estimate), HRV status (a trend of overnight heart rate variability against your baseline) and Body Battery (an estimate of energy reserves from HRV, stress, sleep and activity).
ECG
Garmin offers an ECG app on selected compatible watches in supported regions to record heart rhythm and check for signs of atrial fibrillation.
Model differences
Features vary widely across Garmin's range; check the specifications of the specific model.
Limitations
Wearable readings are estimates designed mainly for wellness and fitness. Accuracy varies by device, fit, skin, movement and model. They do not diagnose conditions; discuss concerning or persistent changes with a clinician.
Factors that can affect the result
- Model
- Region
- Fit and movement
Questions people commonly ask
- Is Garmin's VO2 max accurate?
- It is an estimate that is most useful for trends.
- Do all Garmin watches have ECG?
- No, only selected models in supported regions.
Related topics
Bring your health data together
What does this mean for your own health data? Log your results, follow trends over time and bring an organised summary to your next doctor's appointment.
Sources
- Health Science. Garmin.
- ECG App. Garmin.
- Pulse Ox. Garmin.
- VO2 Max. Garmin.
- HRV Status. Garmin.
- Body Battery energy monitoring. Garmin.