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posted by janrinok on Monday July 21 2014, @10:02PM   Printer-friendly
from the don't-carry-sandpaper-in-your-pocket dept.

"The purported iPhone 6 sapphire display panel came off worse in an encounter with a sheet of sandpaper in a new video test, ending hopes the new screen tech would be completely scratch-proof.

After taking a knife and keys to the display with no negative impact, YouTuber Marques Brownlee decided to get serious with some rather coarse sandpaper, in his latest post. Compared with the Gorilla Glass iPhone 5S display, the iPhone 6 emerged from the battle in better shape, showing the new material is indeed tougher, but by no means invulnerable."

The full article from techradar.com is here.

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  • (Score: 3, Insightful) by Appalbarry on Monday July 21 2014, @10:18PM

    by Appalbarry (66) on Monday July 21 2014, @10:18PM (#72039) Journal

    And, in related news, it is still possible to break an iPhone with single blow of a five pound sledge hammer.

    Out here in the Real World we judge smart phone durability by less dramatic things: Occasional drops from pocket to floor, minor dunkings in water - the sort of things that are usual and which I expect any reasonable bit of portable technology will handle without too much problem.

    FWIW my old Nexus S survived both water and droppages any number times and just kept going, even after the screen was cracked in several places. I considered that a pretty good track record. Strangely enough I can't recall the screen ever collecting any noticeable scratches though.

  • (Score: 4, Informative) by LoRdTAW on Monday July 21 2014, @10:36PM

    by LoRdTAW (3755) on Monday July 21 2014, @10:36PM (#72048) Journal

    Garbage article. The author did not mention the type of sandpaper he used. There are different abrasive types and they vary in hardness, most of them are extremely hard and are as hard or harder than sapphire and come close to diamond. Aluminum oxide is as hard as sapphire on the Mohs scale which means they can scratch each other. Another thing that bugs me is the authors speculation about the glass not being pure sapphire. How did he arrive at this conclusion, because he could scratch it? Did he research the abrasive he used in his tests and compare hardness numbers? This is pure speculation and not at all scientific. There is no article here, just a traffic generator trying to get hits by stirring up the Apple crowd. Then he links a stupid video of someone shooting s screen with an arrow and it shatters. As if they expected different. Hit a diamond with a hammer and it too will shatter. Just because something is hard does not mean it is strong. You trade brittleness for hardness. Shame on you Chris Smith (If that is your real name).

    And lets be honest here, if you want to scratch something you will find a way to do it. Diamond can scratch diamond, you learn this in grade school science class. I doubt people carry around sheets of sandpaper or other highly abrasive materials in their pockets. For everyday objects like metals such as keys and coins or even many small rocks or pebbles, sapphire is perfect for for the job.

    • (Score: 1) by taiki on Monday July 21 2014, @11:20PM

      by taiki (4566) on Monday July 21 2014, @11:20PM (#72058)

      If you read the article, you'd see the linked video.

      Video explains he used garnet and emory.

      There is a story here, unfortunately the story distills the information in the linked video. It's low effort content, but there's content.

      • (Score: 2) by frojack on Monday July 21 2014, @11:40PM

        by frojack (1554) on Monday July 21 2014, @11:40PM (#72070) Journal

        Right, but even the TEXT does say it was garnet.

        And the point still stands that this means Sapphire in NOT what the screen is made of. So its either a trade name or some other much less hard composition that has some tiny bit of sapphire in it (toward what end?).

        Not everyone has sand paper in their pocket. Still you will scratch it eventually. Probably women's more than men's. Digging a phone out of a purse wearing a diamond ring has scratched more than one screen.

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        • (Score: 2) by Nerdfest on Tuesday July 22 2014, @12:27AM

          by Nerdfest (80) on Tuesday July 22 2014, @12:27AM (#72086)

          Plenty of people do have some sand or grit in their pockets and this is a common way for screens to get scratched, even with Gorilla glass. Odds are though that it actually is sapphire glass and the testers were just holding it wrong.

          • (Score: 2) by frojack on Tuesday July 22 2014, @02:13AM

            by frojack (1554) on Tuesday July 22 2014, @02:13AM (#72109) Journal

            In my case its not the holding I have to worry about its the dropping.
            Thankfully my office is carpeted.

            I've never destroyed a smartphone yet, or broken a screen. (I've only owned 4), and all of them are still working, minor scratches and all. They sit on my desk, I use them for various things like running CsipSimple for talking to my over seas friends.

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          • (Score: 3, Funny) by tibman on Tuesday July 22 2014, @03:15AM

            by tibman (134) Subscriber Badge on Tuesday July 22 2014, @03:15AM (#72122)

            I use mine while "adventuring" and have scratched it badly a few times. All it takes is one tiny mineral/crystal spec on the end of your finger. You'll do the unlock code and realize you've permanently etched the code onto the screen : (

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  • (Score: 3, Insightful) by danomac on Monday July 21 2014, @10:47PM

    by danomac (979) on Monday July 21 2014, @10:47PM (#72053)
    So basically the person discovered that the phone glass does well with keys and the like, and figures that's not good enough.

    So let's use sandpaper! While we're at it, let's use a belt sander!</sarcasm> How is this even close to average day-to-day use?
    • (Score: 1) by tizan on Monday July 21 2014, @11:34PM

      by tizan (3245) on Monday July 21 2014, @11:34PM (#72066)

      Some of us have rough finger tips....that feel like sandpaper...we work with our hands.

      We are not all rich kids sitting on our bums having hands smooth as babies bums !

      • (Score: 2) by bob_super on Tuesday July 22 2014, @12:31AM

        by bob_super (1357) on Tuesday July 22 2014, @12:31AM (#72088)

        We don't want no people who "work with our hands" to pretend they deserve to carry the same iToys as us!

      • (Score: 1) by arslan on Tuesday July 22 2014, @01:16AM

        by arslan (3462) on Tuesday July 22 2014, @01:16AM (#72100)

        Rich kids have diamond encrusted fingers... so yea that is even harder than whatevers on the sand paper

    • (Score: 2, Informative) by Adamsjas on Tuesday July 22 2014, @12:07AM

      by Adamsjas (4507) on Tuesday July 22 2014, @12:07AM (#72079)

      I run belt sanders and orbitals in my shop, get grit on my gloves, bench, etc. I really do have to be careful when setting down a phone. Messed up my prior iphone screen laying it face down on the bench. It was like 5 weeks old at the time.
      Wasn't even funny when my wife said I was holding it wrong.

    • (Score: 0) by Anonymous Coward on Tuesday July 22 2014, @04:47AM

      by Anonymous Coward on Tuesday July 22 2014, @04:47AM (#72146)
      It's not, but scratch tests against standard materials of known hardness are a standard way of locating an unknown material on the hardness scale. The videos floating around demonstrate that the new screen material is not sapphire (ie not transparent aluminum, thus not whale-safe) but is stronger than current generation gorilla glass. It's also surprisingly flexible and shatters when pierced. This isn't about daily use, it's about chemistry and finding quick-and-easy ways of classifying unknown materials. Not everything is QA testing: sometimes shit is research.
  • (Score: 4, Insightful) by Tork on Monday July 21 2014, @11:30PM

    by Tork (3914) Subscriber Badge on Monday July 21 2014, @11:30PM (#72064)
    You can tell this article was written in the hopes of getting to Slashdot's front page.
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