Scan Monitor
● After an ECG recording is complete, the ECG data is analyzed to determine if it is
30-second long, and, if so, if either Sinus Rhythm or AFib is present, or if an Inconclusive
result is warranted.
● The ECG recording results on a detailed display of the result on the ScanWatch and on
the Withings app.
● The classification of the ECG recording is for information use only. It is meant to
supplement, but not replace traditional methods of diagnosis. If you are experiencing any
symptoms or have concerns, contact your physician. If you believe you are experiencing
a medical emergency, you should contact emergency services.
● A result of Sinus Rhythm means your heart rate is between 50 and 100 beats per minute
(bpm) and is beating in a regular pattern.
● Inconclusive ECG results may be caused by too many artefacts, by movements (signal
of poor quality), by too much noise parasitizing due to the proximity with an electrical
device generating strong electromagnetic fields or you may have an arrhythmias other
than AFib or your heart is below 50bpm or above 100bpm. A small percentage of
people may have certain physiological conditions preventing the user from creating
enough signal to produce a good recording. You can learn more about Inconclusive ECG
results during on-boarding, by accessing educational information in the ECG area of the
Withings app on your smartphone.
○ A heart rate can be low because of certain medications or if electrical signals are
not properly conducted through the heart. Training to be an elite athlete can also
lead to a low heart rate.
○ A heart rate can be high because of exercise, stress, nervousness, alcohol
dehydration, infection, AFib, or another arrhythmia.
○ If you receive an Inconclusive result due to a poor recording, you might try to
re-record your ECG. You can review how to take an ECG during on-boarding or
by tapping on "Take a Recording" in the ECG area of the Withings app on
○ your smartphone.
● All ECGs are synced to Withings on your Android or iOS smartphone. You may use the
Withings app to share your ECG with a clinician.
4. OXYGEN SATURATION ANALYSIS
The following table for evaluating your measurements does not apply to people with certain
pre-existing conditions (e.g asthma, heart failure, respiratory disease) or whilst staying at
altitudes above 1500 meters. If you have a pre-existing condition, always consult your doctor to
evaluate your measurements.
Rev. 1.7 - Sep 12, 2023