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●The heart rate figures may not be accurate depending on measurement conditions and surroundings.
●Take heart rate measurements wh en you are seated and relaxed .
●If heart rate measurement s are taken at low temperatur es, the result may be inaccu rate.
●Do not move your body while tak ing heart rate measureme nts. Doing so may cause your h eart rate to
be recorded inaccurately.
●Users with thin wrists may r eceive inaccurate hear t rate measurements.
●Inaccurate measurement s occur when the device is lo ose and the light used to prov ide the
measurement is reflected unevenly.
●If the measurement is very d ifferent from the expe cted heart rate, rest for 30 m inutes and then
measure it again.
●Measurements are calcu lated using average values a nd should be repeated at leas t five times.
●During winter or in cold weat her, keep yourself warm when meas uring your heart rate.
●Smoking or consuming alc ohol before taking meas urements may cause your hear t rate to be different
from your normal heart rate .
●Do not talk, yawn, or breath e deeply while taking he art rate measurements . Doing so may cause your
heart rate to be recorded ina ccurately.
●If your heart rate is extrem ely high or low, measurement s may be inaccurate.
●Obstructions betwe en the device’s strap and your w rist, such as body hair o r other objects, may
prevent the light from reflec ting evenly.
●Heart rate measurement s taken for infants and todd lers may be inaccurate.
●Do not look directly at the hea rt rate sensor’s lights. D oing so may impair your visi on.