What's the stronger protecting layer, corning 'Gorilla' glass from smartphones or sapphire crystal used in watches? Why doesn't one use the other? - Quora
![Counterclockwise: the rise of Gorilla Glass and how it changed the phone industry - GSMArena.com news Counterclockwise: the rise of Gorilla Glass and how it changed the phone industry - GSMArena.com news](https://fdn.gsmarena.com/imgroot/news/19/06/counterclockwise-gorilla-glass/gsmarena_002.png)
Counterclockwise: the rise of Gorilla Glass and how it changed the phone industry - GSMArena.com news
![Counterclockwise: the rise of Gorilla Glass and how it changed the phone industry - GSMArena.com news Counterclockwise: the rise of Gorilla Glass and how it changed the phone industry - GSMArena.com news](https://fdn.gsmarena.com/imgroot/news/19/06/counterclockwise-gorilla-glass/gsmarena_003.png)