Corning Gorilla Glass - definition
It is type of glass which is highly engineered and chemically strong enough to avoid scratches/damages up to a certain level developed by Corning. At present, it is producing display protecting glasses for devices on 7th Gen. It is considered these are phones physically strong which have Corning Gorilla Glass support than others. For protection, other types are also used such as Sapphire and few other materials, but when talking about price and quality at the same time then Corning Gorilla Glass is the widely used technology for more or less most of the mobile devices manufacturer company.