Withings ScanWatch Series Installation And Operating Instructions Manual page 19

43. Follow the indications on the video to take your first SpO2 measurement.
Navigate through the different screens by pressing and rotating the side
button of the watch. After pressing briefly the button to start the SpO2
recording, position your fingers on the metallic ring (as shown in the video).
44. If an error occurred, tap Try again.
45. Tap Understood at the end of the measurement.
ScanWatch
v1.0 | August, 2020
EN - 19