This isn’t surprising - there was a wired story about phones surviving from planes back in 2011 (1) The gist is that it’s a light object and due to that + broad shape, its terminal velocity is not very high. Coupled that with the mass and there’s not a lot of force on landing. Of course the phone itself is fragile so it might not take a lot of force to break. Still, as long as it lands on something soft it might be o…
Then why does my phone break when I drop it?
One of my phones made multiple falls onto asphalt and iron grates to no worse than superficial edge band scratches.
One day it flipped onto my desk from a few inches and that cracked the screen.