Gorilla glass 3 is way more scratch resistent than gg4. This is because gg4 is more protective against drops, they had to sacrifice the scratch resistence to reach this. Screen protector is a must for gg4.
Re: anybody here uses the Note5 completely naked?
My note 5 was naked but after a 1 meter drop it had a big dent on the upper left corner. So from now on I am using the ringke slim case with a tempered glas protector.