A month ago I bought Vivoactive 4 with gorilla glass. In three days what I had the watch (software is so terribly buggy) I had already scratches all over the display. On my Forerunner 935 I have over 2,5 years changed 3 times protection glass. Two times I changed because of scratches and one time, because protectionglass got broken. Gorilla Glass 2 which is second generation glass from Corning was introduced in the market in 2012. Corning announced on October 24, 2012 that one billion mobile devices used its product called Gorilla Glass. It is rumoured that the third generation protective glass Gorilla Glass 3 will be used in the devices from 2013 onwards. JjB7LH.

gorilla glass 3 vs 5 which is better