After i swapped out one nexus for another at best buy (hardware issue) they were convinced it was gorilla glass. I knew it wasn't but it's just as strong, i saw a key test on youtube and no scratches. Needless to say they gave me my old nexus that they're just going to send back to Samsung anyway and let me have at it with my keys. I laid INTO this thing, much harder than you ever would try to purposely scratch a $700 + device. NOTHING HAPPENED, and i was going at it for a good 30 seconds. very impressed samsung!