Hello there,
Battlefield Commander app may not be compatible with your device indeed. It works on Android tablets with following tech specs:
Screen sizes 7” and up, 1ghz dual core,1024mb ram,1024×600 resolution, Android 4.0.3 or newer
Which Android device do use?
Here is some more information that may help you.
http://battlelog.battlefield.com/bf3/news/view/bf4-commander-tablet-app-live/
