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EN-47
ScanWatch
v1.0 | August, 2020
What is the Respiratory Scan?
The Respiratory Scan will measure your heart rate, respiratory rate and oxygen
saturation level throughout the night to provide complete maps of your sleep.
During sleep, it is possible to experience trouble breathing and you may not
remember it in the morning. Oxygen saturation level drops can be a sign of these
breathing disturbances. When the brain senses that oxygen levels are getting too
low, it triggers a safety alarm signal, waking you up to take a breath. After falling
back to sleep, this can occur repeatedly during the night, which doesn’t allow the
body to recover properly.
ScanWatch embeds sensors to scan your night. It uses its PPG
(photoplethysmography) sensor to measure your heart rate and heart rhythm,
your breathing rate and respiratory eort, and your oxygen saturation (SpO2)
continuously. It also uses an accelerometer to monitor your actigraphy (rest and
activity cycles). Consequently, ScanWatch can detect breathing disturbances
episodes during your sleep.
When activating the Respiratory Scan, you will be able to choose between three
types of experience:
• O: No Respiratory Scan will be launched.
• Automatic: Basedon the results of the first night, ScanWatch will repeat the
recording when necessary. It will notify you the day before and ask if you want
to reschedule later. This frequency is recommended by doctors to get the best
results from this feature. Note that the battery should be above 10% to launch
the series of measurements.
• Always on: A Respiratory Scan will be completed every night, and you will get
the results every morning. Your battery life might suer from this mode.
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