1. baldrick332's Avatar
    My iphone 5s system iOS8.3, recently, I want to upgrate 9.0. I want to know it will be very slow or not?
    09-22-2015 02:03 AM
  2. kch50428's Avatar
    09-22-2015 06:19 AM
  3. El_NiNo's Avatar
    Hell no
    09-22-2015 06:20 AM
  4. Larry Cook1's Avatar
    I updated and my phone is still working well. No slow reponses or hang ups.

    Posted via the iMore App for Android
    09-22-2015 07:57 AM
  5. pr1nce's Avatar
    It will be fine. I'm running iOS 9 on my 5s. No problem.
    09-22-2015 08:09 AM
  6. patternjake's Avatar
    It will be fine, heck I'm using it on my iPhone 4S and it's wonderful. It does work better with bigger screens, but I'm more than satisfied with it. Actually, it's more optimised than iOS 7 ever was on the device.
    09-22-2015 08:43 AM
  7. Septembersrain's Avatar
    Nope. If it's running this smooth on my 5c, I'd think it would be great on anything newer.

    Sent from my iPhone 5c using Tapatalk.
    09-22-2015 10:34 AM

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