1. When the watch is on standby, long press the side key of the device to enter the Alexa dialog interface; or click the Alexa icon 
to enter the Alexa dialog interface.
2. Speak your request to the device; after Alexa receives your request, the brightness setting will be carried out.
3. Examples of requests:
Note: device function-related keywords should be contained in your expressions, which are shown as below.
Brightness/Display setting:
Turn on the display setting
Start display setting
Increase brightness/Increase watch brightness
Decrease brightness
Reduce brightness
Lower screen brightness
Set brightness to max
Set the screen brightness into Maximize
Set brightness to min
Set the screen brightness into Minimize
Set brightness to 1/2/3/4/5
Adjust the brightness to 1/2/3/4/5