Samsung Galaxy S4 are known to be the first gadget that uses Corning Gorilla Glass screen protection 3. Gorilla Glass layer 3 is said to possess resistance to abrasion three times greater than the Gorilla Glass 2 to reduce visible scratches and increase strength by 50% after the screen cracked glass.
Maybe you want to look and see how and to what extent the strength of the Samsung Galaxy S4 when done a test with sharp objects. Samsung Galaxy S4 is shown to have more power than other phones tasa class.
To prove the toughness of Gorilla Glass 3, someone decided to test the Galaxy S4 screen using some sharp objects like knives and keys. Tests were recorded in a video uploaded to YouTube to watch.
Experimental results show that the screen Galaxy S4 is able to overcome the torment of these objects. For more details, please refer to the video.