Many manufacturers of mobile devices, including and the company Apple, is used to protect the glass display Gorilla Glass, invented by Corning. But we now know that very soon the "apple" technique goes on sapphire - second strength of the material after diamond, which is significantly harder than glass.
Corning urges not to succumb to the hype around the sapphire technology. The company said that the sapphire crystal is in many ways inferior to Gorilla Glass. In particular, they are almost 10 times more expensive to produce 1.6 times heavier and more harm to the environment. Besides sapphire, although resistant to scratches can beat.
Bloggers from uBreakiFix decided to check whether claims Corning untrue. They conducted a series of tests with Android-smartphone Kyocera Brigadier , the display is protected by a sapphire crystal. In the first experiment - drop onto concrete - screen machine made well enough. But as it is in itself a secure smartphone, the display decided to remove from the case and repeat the experiment. The results turned out to be much worse - cracks appeared after the first drops to concrete. But in the bending test panel Gorilla Glass was 25% more fragile than a sapphire crystal.
Americans experiment proved that the sapphire is really stronger than traditional glass.However, it is primarily concerned with scratch resistance. Knives, keys or coins will not leave any traces on the sapphire crystal. But if dropped on a hard surface material does not provide additional protection.