Frequently Asked Questions
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Electronics
Smart Watch, Fitness Tracker 1.69" Touch Screen Compatible with iPhone Android, IP67 Waterproof Smartwatch with Heart Rate Monitor and Sleep Monitor, Activity Tracker Pedometer for Men Women
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If
it
is
still
invali
d,
it
means
that
the
aut
horizati
on
of
the
mobile
phone
is
not
succes
sful,
and
it
needs
to
be
restar
ted
b
efore
use
(onl
y
need
t
o
restart
o
nce,
no
longer
n
eeded
i
n
the
fut
ure)
1
...
...
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8
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