The leaked part that’s being claimed as the front screen of the forthcoming iPhone 6 got a fine workout in a video test by Youtube regular MKBHD (Marques Brownlee) when it first broke cover, and now Brownlee is back with a fresh video that takes the toughness testing even more. This 2nd round involves disclosing the supposedly super-strong sapphire-based material for an accurate test of toughness – scratching by sandpaper, a material with a much higher Mohs scale hardness rating than any steel knife or set of keys.
In the video, both garnet and emery-based sandpaper, both of which have Mohs scores that exceed the hardness of current Gorilla Glass. These fall under the hardness rating of genuine sapphire, however, which is next only to diamond when it arrives to hardness for naturally occurring materials. The iPhone 5s, doesn’t stand up well to scratches used by the sandpaper – but the iPhone 5s home button, which is fairly much pure sapphire, does.
The so-called iPhone 6 screen also isn’t protected to the effects of the sandpaper – but it does stand up far better to the scratching than the display of its predecessor. And as Brownlee explains, it doesn’t issue so much that the display struggled a couple of scratches under these really artificial testing circumstances: Its overall toughness and flexibility mean it should be secure from nearly every actual threat it might encounter in your pockets or your bags.