
Meet your Google Assistant 45
• Wearing your watch too loosely or moving excessively may cause
inaccurate measurements.
• Escaping light may lead to inaccurate measurements. Do not wear
the device so that it is directly over your wrist bone when taking
measurements.
• Never look directly at the heart rate sensor light as this may damage
your eyes.
Getting Accurate Measurements
Heart rate readings may be inaccurate depending on the conditions
and your surroundings. Follow these steps for more accurate heart rate
readings:
• Never measure your heart rate after smoking or drinking alcohol.
Smoking and/or alc
ohol c
an affect your heart rate.
• Never take heart rate measurements at low temperatures. Keep
your
self w
arm when you measure your heart rate.
• Users with thin wrists may find their heart rate measurements are
inac
cur
ate.
• When measuring your pulse for workout purposes, take the
measur
ement while seat
ed and relaxed before exercise, then proceed
with your workout.
• If the measurement significantly differs from predicted values, relax
and measur
e again in 30 minut
es.
• Confirm your pulse by taking repeated measurements (about 5
times).
• If you speak, yawn, or breathe deeply during the measurement, you
ma
y see inac
curate values.
• Your circulation, blood pressure, or skin condition can affect the light
r
ef
lection process and may lead to inaccurate measurements.
• If light reflection is blocked by body hair or other items, you may
ob
tain inac
curate measurements.
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