Samsung Galaxy S4 Scratch Test proves that S4 is unscratchable.Samsung Galaxy S4 is indeed an amazing device, and this latest test proves this even more. A Samsung Mobiler that got his hands on a brand new Galaxy S4 decided to put the Galaxy S4's screen to a scratch test, to see how resistant is the Gorilla Glass indeed. You will be surprised to see that after using knifes, pens, keys and coins in an attempt to scratch the screen, it still remains completely smooth and clear. No scratches at all after all that. Seems that Gorilla Glas 3 is indeed one of the biggest features of the S4.Just take a look at the video below and see for yourself. Samsung Galaxy S4 Scratch Test proves that S4 is unscratchable.Samsung Galaxy S4 is indeed an amazing device, and this latest test proves this even more. A Samsung Mobiler that got his hands on a brand new Galaxy S4 decided to put the Galaxy S4's screen to a scratch test, to see how resistant is the Gorilla Glass indeed. You will be surprised to see that after using knifes, pens, keys and coins in an attempt to scratch the screen, it still remains completely smooth and clear. No scratches at all after all that. Seems that Gorilla Glas 3 is indeed one of the biggest features of the S4.Just take a look at the video below and see for yourself. 
What's my model number?
There are several ways to locate your model number:
- Option 1
- On your device, go to Settings, then "About device" and scroll down to "Model number"
- Option 2
- Often times you can view the model number inside the device, by removing the battery
- Option 3
- Using Samsung's model/serial number location tool