The guy in the video says it's brought back (usually from the States) by a friend of his. His explanation for the unresponsive screen is due to Apple disabling the device remotely, probably triggered by failure to input some passcode .

He just describes how the new phone is a little taller but not as wide as previous gen. He also mentions that both the front and back are made of glass.

That's about what I can make out of the noisy background.