Monitoring Heart Rate; Measuring Blood Oxygen Level - Letsfit IW1 Manual De Usuario

3. Monitoring Heart Rate

After entering the heart rate interface, the watch tracks your real-time heart rate
automatically and continuously. You can view your detailed heart rate data on the watch
screen or in the app.
Note:
To monitor your heart rate more accurately, wear the watch two fingers wide below your
wrist bone and wear it tighter than usual. In addition, complete your profile in the app.
Heart Rate Notifications:
heart rate while you appear to have been inactive. You can enable or disable heart rate
notifications in the app ("Device" page → "Heart Rate Notifications").

4. Measuring Blood Oxygen Level

Before measuring, wear the watch two fingers wide below the wrist bone and a bit tighter
than usual.
1) Tap "Blood Oxygen" to enter the blood oxygen level detection mode.
2) When measuring, keep your arm flush with your chest and the watch screen facing
up. Keep your arm still to ensure the accuracy of the data.
Sleep Detection Mode: If you want the watch to track your blood oxygen level during
sleep, please open the Fitdock app, go to the "Device" page, and turn on the blood
The watch will remind you when you exceed your maximum
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