Unity 3d [2D simple app for android] problem with camera/resolution or unity remote]

Hi all, So recently i wanted to create simple app for android just for a start, a button and when you click button it will go to another scene/display something else. I made a button in unity 3d and wanted to try out unity remote so i did, but when i press play on the computer it looks all good clear but on phone its just all blury/pixelated ? Is there any way to set up unity 3d camera, so it will basically display a phone screen size, so i could just simply just put buttons wherever i want and they will be exactly displayed in same place on the phone as well it will adjust automatically to different phone screen ? Thanks for help guys

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