[gwd]

I didn't have a case on my 3GS, nor my 4S, nor my 5S. I dropped them all many times and never had anything more thank a couple of nicks.

Tried to do the same with my 6S, where the glass goes over the edge of the phone. Cracked the screen 3 times, got a thin case. When I decided I wanted to upgrade to an XS rather than repair the screen again, the wife said only if you get a proper case; and I had a hard time disagreeing with her.

I'm positive that Apple could design a phone smaller than the combined size of the XS a good case, which would handle the drops I subject my phone to occasionally just fine. It would be a little thicker and less pretty than the current phone without a case, but much less thick and much less ugly than the current phone with a case.