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Taking an ECG
- Activate the ECG measure using the watch interface: press the button, then search for the ECG menu screen on
the watch. Launch the measurement by pressing the button one more time. You cannot start an ECG from the
Withings app.
- If the feature has been activated, the measurement starts, otherwise the screen displays an invitation to activate
the feature.
- The recording starts after the first vibration.
- The recording lasts for 30 seconds.
- Wait for the measurement to end. A countdown indicates the remaining time.
- The end of the measurement is confirmed by a double vibration.
- For users located in the U.S., the first ECG recording will be reviewed by a healthcare professional. It should take less
than 24 hours. Once completed, the feature will be unlocked, and the classification of the Atrial Fibrillation detection
algorithm will be displayed in the app.
ECG classification
After an ECG recording, you will be able to see one of the following classifications for the recording:
- Normal Sinus Rhythm: A sinus rhythm means your heart is beating in a uniform pattern.
- Atrial Fibrillation: Atrial Fibrillation occurs when the two upper chambers of the heart move randomly instead of
pumping regularly. This does not allow for complete emptying of the chambers and thus, blood may become stagnant
and create blood clots. You should contact your physician.
- Inconclusive: An 'Inconclusive' result means that the device could not classify your ECG recording as normal Sinus
Rhythm, Atrial Fibrillation or Noise. There could be many reasons for this. One reason is the presence of interference
due to movements of the arm, wrist or fingers. Another reason can simply be that the heart rate exceeds 100 bpm or
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