User's Manual

please select ‘allow’ so as to avoid the failure of receiving
notifications, scanning QR code and remote camera functions
because the APP doesn’t get the permission from the phone. The
permission request is regular and normal without consuming your
phone’s internet data or other message and application, it is only
used for the Bluetooth connection between the APP and the watch.
6.3 Some Android system may mistakenly turn the APP off
while cleaning up applications. Please keep checking and ensure
the APP running on the background of your phone by following the
steps: Setting - Application management - LinkTo Sport - Authority
management - Background management - Running in the
background ( setting method may vary with different phone models
and versions).
6.4 Moderate tightness between the watch and your wrist is
required for the accuracy of heart rate test as too tight or too loose
will incur inaccurate figures. Too tight will affect the blood flow while
too loose will affect the monitor function of the heart rate sensor.
6.5 Please avoid collision with hard objects as it may broken
glass.
6.6 Please use 5V, 1A version chargers, this watch does not