Asus Fonepad Note 6 - Manual (Page 13)

K00G 1
Front camera
This built-in front camera allows you to take pictures or record videos
using your ASUS Fonepad.
Proximity sensor
The proximity sensor detects the distance between you and your ASUS
Fonepad. When you use your ASUS Fonepad to make or receive a call, it
automatically disables the touch function and switches off the backlight.
Ambient light sensor
The ambient light sensor detects the amount of light in your environment.
It allows the system to automatically adjust the brightness of the display
depending on the ambient light condition.