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Letsfit EW1 - Monitoring Heart Rate; Measuring Blood Oxygen Level

Letsfit EW1
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Note:
To monitor heart rate more accurately, wear the watch on the
upper position of your wrist and a bit tighter than usual when
you exercise. In addition, complete your profile in the app.
4. Measuring Blood Oxygen Level
Before measuring, wear the watch
a finger-width below the wrist
bone and a bit tighter than usual.
1) Tap "Blood Oxygen" to enter the
blood oxygen level detection
mode.
3. Monitoring Heart Rate
Tap "Heart rate" in the function list to enter the heart rate interface,
the watch will automatically measure your real-time heart rate. You
can also view your all-day heart rate data in the heart rate interface
of the watch or in the app.
7:00 AM
98
%
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.

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