Brigmton BSPORT-18-N Manual De Instrucciones página 14

If you set and activate the alarm in the application and the clock is
connected from your phone to the application, the watch will vibrate when
the time of the alarm arrives.
ALERT OF SEDENTARISM
The clock vibrates to remind you to walk after 1 hour sitting.
Note: you can activate or deactivate the function in the application.
Using quick view
When the clock screen is off, simply turn the wrist towards you and the
screen will turn on. The clock screen automatically turns off after being
inactive for a few seconds.