The new Apple iPhone 6 is getting closer to its launch date. On September 9 we will find out exactly which rumors turn out to be true and if Apple manages to surprise with even more exciting features.

The iPhone 6 sapphire display is among the most fascinating features of the next generation Apple smartphone. As smartphone displays got bigger and more important in the user experience, users started to pay more attention to this sensitive component. To ensure the most natural color reproduction along with offering a smooth material under your fingertips, smartphone producers chose production materials prone to superficial and even fatal damages. That is why most of us carry our precious gadgets around packed in protective cases. Smartphones became larger pretty fast, so having to carry a case adding extra volume in our pockets is not a pleasant feeling.

A smartphone display capable of resisting key scratches and scratches produced by other types of materials routinely found in an average user’s life would set most of us free from carrying a protective case around.

iPhone 6 sapphire display can vigorously resist scratches, but a small crack would ruin it

Sapphire seems to be the best choice around. The problem with this wonder material is its price. A sapphire display might add an extra $100-150 to the final iPhone price. Corning produces the famous Gorilla Glass which is now at its third generation. Most Android flagships sport this type of displays already, but the material is not fully satisfying, as scratches can occur easier than some users expect.

A famous YouTube reviewer already tested the new Apple iPhone 6 sapphire display back in July. His thorough tests show a very robust material able to withstand things you would not even dream of doing to your worst enemy’s smartphone.

“Micro scratches on the surface weaken the plate,” Bill Weissman, chief financial officer for sapphire supplier, Rubicon Technology, told Business Insider. “Those are the areas where the cracks would form. Since sapphire isn’t going to scratch as easily, it shouldn’t crack as easily.”

Nevertheless, if a sapphire display is scratched, the damage would easily spread all over the screen, causing the material to crack. A scratch would be hard to obtain, as sapphire is the second most resistant material in the world just after diamond. The iPhone 6 sapphire display will not be wholly constructed out of the wonder material, because of costs, as well as because of other physical properties like bending resistance.