game graphics quality is low when i play it on an android device for testing

game graphics quality is low when i play it on an android device for testing

My device name elitebook 8440p hp:-
Chip Type: Intel(R) HD Graphics(Core i5).
My Testing device name amazon:-
Android Version: 4.4.4
When i attach my android device for testing it does’nt gives a better quality result or better quality display it produce bad resolution or low(slow) quality display.
When i go to project settings->Quality->or set fastest display mode it says “changes mode in play mode will not be saved”.