You know, it is partially from tech forums like this one. But I take that as a broad survey of what everyone else is experiencing. The real evidence i used to form my personal opinion is my own use. I've had every iPhone since the original 2g. I haven't changed the way i carry my phone much. I take great care to make sure it's in my pocket without other items. I can definitively say in my own use that the X and new Xs phones are more scratch prone than the 7 and 8. Once again, in my own personal use, i've watched as the scratch resistance has improved since the first iphone through the 8, with a note that the 7 and 8 were pretty much the same. I also have carried 2 iPhones, one work and one personal, for the past 4 years. Last year i carried an 8 and X. Both phones carried in a similar matter with about the same use. By the time I turned in my X for an Xs, several small scratches were apparent where my 8 is still perfect.
My experience is just that, mine alone. But there are other threads from last year when the X came out with the same issue.... and here we are today on an Xs thread. Look for threads about the 7 or 8 and there are far less reports than the X and Xs. Some speculate that it has to do with the type of glass they moved to for OLED support or a change in the coating. Who knows what the cause may be. But in my own use, the X and Xs are less resistant, dare I say far less resistant, to scratches than the 7 and 8.
