Tech reviewer Marques Brownlee somehow got a hold of what is purportedly the screen for Apple's forthcoming iPhone 6. Made of sapphire rather than Gorilla Glass, the screen has been rumored to be a big step up in durability.
The material-minded will recall that Apple's current iPhone features sapphire covers for both the camera and the home button/fingerprint sensor, and in those roles it is crucial the material not be scratchable, otherwise the functionality would be compromised. But how will it hold up with a much larger surface area, comprising the entire 4.7" screen of the 6? On his YouTube channel MKBHD, Brownlee puts it to the test by working it over with a knife and a set of keys, before finally attempting to bend and break it. Have a look: