The back of my phone is full of microscratches but I have my phone in a case since the second day I'm having it and I'm actually scared is the dust that gets trapped behind it that are causing them, I really don't want my phone to get scratched further but if I ever drop the phone without this case the sides of it which are made of metal are going to be disfigured ugh
@Siphonay You may need a cover that traps less dust. It probably also helps to blow it with compressed air from time to time.
@Siphonay I'm using a cover with a rubber trim and a plastic back. It does collect some dust, but not very much. It has extra padding on the corners, and the rubber extends just beyond the screen, which has protected my phone from multiple concrete floor impacts.
@thor yeah apparently the official Samsung cases are super tight and do not let dust in but their also pretty expensive