Gadgetory

the Mohs scale of hardness is a general scale for finding the relative hardness of different minerals among other things it does a great job of showing the difference between plastic glass pure sapphire and diamonds for more specific and precise measurements the scale is not ideal with real science any particular test or experiment would be performed multiple times across multiple devices eliminating any statistical outliers but since I pay for all of my own devices it's not financially feasible to bulk purchase phones after my initial scratch test on the note 7 I did purchase the second no 7 to double-check my results since they did seem kind of strange and the second device scored the same scratching at level 3 so at that point I felt confident in publishing my results to youtube I did not think that my most picks would be the inconsistent and incorrect variable when purchasing this hundred dollar set of most picks they come extremely sharp since you need a sharp object in order to perform a scratch test obviously this particular kit that you see me opening on screen right now was purchased after my note 7 scratch test and before the release of the iPhone 7 it's important to note that the iPhone 7 screen and camera lens test were performed with a brand new set of Mohs picks this new set of picks will be repeating the scratch test on this note 7 I'm fairly dedicated to reviewing smartphone durability and I'm equally dedicated to accurate results during my tests with this new set of picks and a new phone the Gorilla Glass 5 scratches at a level 6 and again at a level 7 these results are perfectly on par with previously tested smartphones so why was my previous note 7 scratch test so drastically different it actually took quite a while to figure out my investigation and this update video was slightly hindered by the worldwide note 7 recall but here's what happened included with the most kit is a sharpening stone this is meant to keep the tip sharp so they can perform scratch tests but as this stone is used little fragments of the sharpening stone become embedded in the pick tip this stone is made from a combination of aluminium oxide and silicon carbide both of which are around an 8 or a 9 on Mohs scale and since these little fragments of stone are microscopically stuck in the tip of three instead of the three being a three the three becomes an eight and since a level eight is out side of the normal glass realm the glass get scratched this wouldn't be a problem in the real world of testing rocks and minerals and concrete hardness but the contamination is clearly an issue with glass scratching my picks failed me during that first test and in turn my results were skewed the Gorilla Glass 5 definitely does not scratch at a level 3 as I erroneously stated in my previous video Gorilla Glass 5 is the same relative hardness as other tempered glass screens like Gorilla Glass 4 in the future I will not be sharpening any of my picks with this stone I'll just purchase a new most kit when I need to remember none of my previously tested phones including the iphone 7 or the iPhone 7 camera lens were scratched with contaminated pics this testing issue only affected the tests on the note 7 this is my daily note 7 that I used without any screen protector a case for about a month just daily riding around in the pocket of my jeans so depending on the phone design and what materials the screen comes in contact with during everyday use the glass can still get scratched it is not invincible also remember that we are looking at these scratches in perfect light on a high quality 4k camera so in real life these micro abrasions aren't as prominent especially when the screen is turned on nevertheless a screen protector is always a good idea the note 7 is literally my favorite phone and my current daily driver while scratching may seem like a non-issue compared to the exploding Fiasco it is still important to me to have the correct information to compare with the rest of my previously tested phones the Gorilla Glass 5 scratching super early on Mohs scale is not a problem with the no 7 so keep that in mind if the phone ever goes on sale again as my channel has grown in popularity I have a responsibility to maintain accuracy especially since I am the only person on the Internet systematically testing smartphone durability as always leave any questions or comments down below the video and thank you for watching I'll see you around