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  • Testing Finds "Significant Fails" in iPhone 5S and 5C Touch Accuracy


    According to new test data, the touchscreens on Apple’s recently released iPhone 5S and 5C show significant degradation in touch detection accuracy along their edges, which can affect hitting outside keys on the iOS virtual keyboard. Using a robotic finger and a specialized suite of test software, Finnish automated testing company, OptoFidelity, found that Apple’s latest handsets accurately detect touch inputs only across a small swath of their displays, roughly equating to the location of the on-screen keyboard.

    Both the iPhone 5S and 5C suffer from “extremely bad” touch performance near the edges of the display according to the company. This makes it difficult for users to hit outlying keys on the virtual keyboard like Q, O and P the report says. OptoFidelity compared the iPhones’ displays to that of Samsung’s Galaxy S3 and found that the Android phone offered significantly more accurate touch detection across its entire touch surface. The report mentioned the following regarding the matter:

    Because the touch accuracy is more even in Galaxy S3 than in iPhone 5s and iPhone 5c, you get a lot less typing errors, and letters which are close to the edge are working better.
    The test methodology considers a difference of less than one millimeter between the robot’s reported position and the touch screen’s reported position to be “accurate.” This analysis marks a change from 2010 when testing showed the iPhone display was far the most accurate among smartphones then available on the market. The test from three years ago was conducted by drawing lines on the screen and measuring how straight they would be.

    Although the latest test suggests that the outside of Apple’s iPhone displays may experience inaccuracies, the iPhone continues to lead the way when it comes to responsiveness. A study from Agawi recently found the iPhone 5 display to be twice as fast as competing Android-based handsets.

    Source: OptoFidelity
    This article was originally published in forum thread: Testing Finds "Significant Fails" in iPhone 5S and 5C Touch Accuracy started by Akshay Masand View original post
    Comments 40 Comments
    1. mlee19841's Avatar
      mlee19841 -
      Weird. Fine here. Pppoooqqq
    1. babyydaveyy's Avatar
      babyydaveyy -
      Ok I have noticed that it is much harder to type on the iOS 7 keyboard, maybe it could be due to this issue.
    1. Zokunei's Avatar
      Zokunei -
      This is not true.
    1. tridley68's Avatar
      tridley68 -
      Quote Originally Posted by mlee19841 View Post
      Weird. Fine here. Pppoooqqq
      Mine seems to be working fine also
    1. dwizurd's Avatar
      dwizurd -
      I have noticed that sometimes my space bar doesn't register, but I always assume I'm just holding it wrong.
    1. CCNPJediHacker's Avatar
      CCNPJediHacker -
      I noticed this also with my first iphone 5 but my 2nd works flawless. A particular OEM problem maybe? LG? Samsung? AU Optronics?
    1. b0bab0i's Avatar
      b0bab0i -
      Why would they compare it to an S3 and not an S4?
    1. jOnGarrett's Avatar
      jOnGarrett -
      Quote Originally Posted by Zokunei View Post
      This is not true.
      hmm, a multimillion dollar corporation with years of experience, a group of highly educated professionals and tons more resources than you could ever have, why would we believe you over them?

      Quote Originally Posted by b0bab0i View Post
      Why would they compare it to an S3 and not an S4?
      good question.
    1. luvmytj's Avatar
      luvmytj -
      Quote Originally Posted by b0bab0i View Post
      Why would they compare it to an S3 and not an S4?
      My thoughts exactly. Compare current unit, don't cherry pick one.
    1. Simon's Avatar
      Simon -
      Maybe iPhones just respond better to human fingers instead of robot ones lol
    1. Scotty Manley Silberhorn's Avatar
      Scotty Manley Silberhorn -
      Yeah I feel that the iPhone doesn't respond to my touches like it used to. I have a 5s and I though my iPhone 4 was more accurate. Just thought that I was going crazy, maybe there is some truth to this.
    1. Hedrush's Avatar
      Hedrush -
      I just tried this by scrolling down a web page from the side of screen and there is a noticeable lag when compared to scrolling down from the center of the screen.
    1. Norb's Avatar
      Norb -
      I've read on other sites that iPhone uses some sort of perspective adjustment for the touch screen and augments the input a bit. It's designed for human use not robots...
    1. donozo's Avatar
      donozo -
      Quote Originally Posted by babyydaveyy View Post
      Ok I have noticed that it is much harder to type on the iOS 7 keyboard, maybe it could be due to this issue.
      Or maybe your fingers are fat????

      My 5s and my sister 5c has no affect and they work fine...
    1. thetoothfairy's Avatar
      thetoothfairy -
      lol Simon!

      Mine seem to be ok
    1. Rickyfl84's Avatar
      Rickyfl84 -
      Could the fact that the GS3 screen is also bigger than the iPhone and hence the virtual key buttons being bigger helps its accuracy I wonder lol
    1. Zokunei's Avatar
      Zokunei -
      Quote Originally Posted by jOnGarrett View Post
      hmm, a multimillion dollar corporation with years of experience, a group of highly educated professionals and tons more resources than you could ever have, why would we believe you over them?
      All I'm saying is that my 5s doesn't have "extremely bad" touch performance anywhere on the screen.
    1. BUcLAo69's Avatar
      BUcLAo69 -
      Hmmm... That's weird because mine works fine here on my iPhone 5S!!!
    1. CZroe's Avatar
      CZroe -
      I have always noticed that Apple deliberately filters input near the edges to adjust the range of your touch input. Why? There are bumpers and non-sensitive areas around that physically limit input around the edges and the software is compensating. Duh.

      I'm an not an Apple fan and actually get annoyed by this feature but at least I recognize it. This test is too stupid to even realize it.
    1. Simon's Avatar
      Simon -
      Quote Originally Posted by CZroe View Post
      I have always noticed that Apple deliberately filters input near the edges to adjust the range of your touch input. Why? There are bumpers and non-sensitive areas around that physically limit input around the edges and the software is compensating. Duh.

      I'm an not an Apple fan and actually get annoyed by this feature but at least I recognize it. This test is too stupid to even realize it.
      They're only robots.