Here are 3 videos, all using the EXACT same phone (not just the same color, version, etc, it's literally the EXACT same phone used in all tests), that test the durability of the Nokia Lumia 920.
This makes me even more happy for my purchase (red lumia 920 and yellow lumia 920).
Video 1: Drop test
https://www.youtube.com/watch?v=jH4xYN9I5Kw&feature=plcp
Video 2: Knife, keys, and hammer test.
https://www.youtube.com/watch?v=yDEahsoa_N4&feature=plcp
Video 3: Do whatever it takes to destroy the phone.
https://www.youtube.com/watch?v=E3c8il_Q6SU&feature=g-all-u
This makes me even more happy for my purchase (red lumia 920 and yellow lumia 920).
Video 1: Drop test
https://www.youtube.com/watch?v=jH4xYN9I5Kw&feature=plcp
Video 2: Knife, keys, and hammer test.
https://www.youtube.com/watch?v=yDEahsoa_N4&feature=plcp
Video 3: Do whatever it takes to destroy the phone.
https://www.youtube.com/watch?v=E3c8il_Q6SU&feature=g-all-u