Android quality setting not working?

I’m making an android game but when i play on my phone the quality is…bad.
The definition seems really low, i tried changing every setting but it always looks the same. My phone has an 720x1280 resolution but the game plays in what i assume is way lower.

Are you testing on device using Unity Remote?? If so then there lies your issue. Unity Remote is not a true representation of how your app is going to look like on the actual device. You need to properly install the .apk to your android and test it that way. You will see the resolution will be much better. Usually if you have your phone connected and you build and run the project it will automatically install the application to your device.