iPhone 6 Sapphire Crystal Display
Somehow this guy on youtube that reviews cellphones got his hands on the iPhone 6 display screen. He demonstrates how the display is virtually impossible to scratch, break, or damage. I don't know if Apple gave the display to this guy, who has over a million subscribers, as a marketing ploy to build buzz, but it's pretty impressive. As a person that drops his phone a lot, a durable display is a great selling point. Now all Apple has to do is make the phone waterproof in order to compete with the Samsung Galaxy S5.
Oh, by the way I did some research on Sapphire displays and they are 10 times more expensive to make than the original Gorilla glass displays that Apple has used. So if you were expecting an affordable iPhone 6, think again.