Samsung Gear S R750V User Manual page 73

•
Do not talk, yawn, or breathe deeply while
taking heart rate measurements. Doing so
may cause your heart rate to be recorded
inaccurately.
•
Because the heart rate sensor uses light to
approximate heart rate, its accuracy may
vary due to physical factors that affect light
absorption and reflection, such as blood
circulation/blood pressure, skin condition and
location and concentration of blood vessels. In
addition, if your heart rate is extremely high or
low, measurements may be inaccurate.
•
Users with thin wrists may receive inaccurate
heart rate measurements when the device
is loose, causing the light to be reflected
unevenly. If heart rate measurement is not
working properly, adjust the position of the
device's heart rate sensor to the right, left, up,
or down on your wrist, or turn the device so the
heart rate sensor sits firmly against the inside
of your wrist. If the heart rate sensor is dirty,
wipe the sensor and try again. Obstructions
between the device's strap and your wrist,
such as body hair, dirt, or other objects may
prevent the light from reflecting evenly. Please
make sure you remove such obstructions
before use.
•
If your device becomes hot to the touch,
remove it until it cools. Exposing skin to a hot
surface of the device for a long time may cause
skin burn.
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