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5.3.3 Please check the port of the data cable and try again to ensure a proper connection.
5.4 Bluetooth disconnects or unable to connect:
5.4.1 Please restart it.
5.4.2 Please turn off Bluetooth of mobile phone and open it to reconnect.
5.5 Inaccurate sleep data:
The sleep monitor is designed to mimic the natural pattern of falling asleep and waking up.
Please use the smart watch during the day, otherwise a deviation may occur if you go to bed
late or only use it while you sleep. Sleep data may not be generated if you go to bed during
the day, since the default sleep time is set between 9:00 p.m. and 7:30 a.m.