When I switch devices, do I need to configure all of the settings in the new devices DJI go app or are they (sensitivity, yaw, AE, battery life warning, etc) stored on the aircraft ?

I suppose I could perform a test myself, but I'm busy changing settings! I also searched the manuals and here on the forums.

Edit: settings appear to be stored on the AC, Ken or TahoeEd?

Hi Matman, the low battery warning value will not be saved.
The sensitivity, yaw values will be saved.