Wifi off when screen off.

[Jalarm]

I have noticed on my Nexus when I turn off the screen the wifi will turn off. I know I can turn that setting off and just keep wifi on all the time, but I was wondering if there is any certain reason the wifi turns off when the screen is off (if it does something good for the phone).

 

[Baconator]

Maybe helps the battery. IDK.

 

[vaio8199]

It helps the battery. I suggest you don't set off it because I think it dosen't affect any quick calls.