4S SIM vs. 4 SIM? ... Same?

Discussion in 'iPhone' started by benguild, Oct 16, 2011.

  1. benguild macrumors 6502a

    Joined:
    Jul 29, 2003
    #1
    Do I need to replace my AT&T SIM Card in order to get faster 3G Speeds?
     
  2. Roessnakhan macrumors 68040

    Roessnakhan

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    Sep 16, 2007
    Location:
    ABQ
  3. benguild thread starter macrumors 6502a

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    Jul 29, 2003
  4. Vegasryn macrumors 6502

    Joined:
    Mar 31, 2010
    Location:
    Las Vegas, NV
    #4
    No source needed - I had 4 and all I did was take my microsim out and put it in my 4s and everything works great. I am experiencing the higher data rates which just has to do with the radio chipset, and not your SIM
     
  5. itsmemuffins macrumors 68030

    itsmemuffins

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    Jun 23, 2010
  6. benguild thread starter macrumors 6502a

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    Jul 29, 2003
    #6
    OK, but I'm hoping that someone can confirm this ....
     
  7. det2004 macrumors 6502

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    Aug 20, 2007
    #7
    They are the same. It's like when I bought a 3G phone and was using my edge sim in it and getting 3G data speeds.
     
  8. nebo1ss macrumors 68030

    Joined:
    Jun 2, 2010
    #8
    To get the faster speeds you need to be connected to a Tower that has been upgraded to HSPA+. Nothing to do with the SIM card.
     
  9. ct2k7 macrumors 603

    ct2k7

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    Aug 29, 2008
    Location:
    London or Florida
    #9
    OP, I want your source to disprove what has been stated.
     
  10. AndrewR23 macrumors 68040

    Joined:
    Jun 24, 2010
    #10
    Anyone know if I can sell my old iPhone 4 with a SIM that I got as a replacement in a brand new iPhone 4 that I never used?
     
  11. bpeeps macrumors 68020

    bpeeps

    Joined:
    May 6, 2011
    #11
    SOURCE???!!! :cool:
     
  12. blue43fan macrumors regular

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    Aug 5, 2008
    #12
    As long as the SIM has not been activated, it will be fine.
     
  13. ki2594 macrumors 6502a

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    Apr 12, 2008
    Location:
    Carmel, IN.
    #13
    Did the same thing. Getting faster data rates. All good. Green light
     
  14. dave006 macrumors 68030

    dave006

    Joined:
    Jul 3, 2008
    #14
    Actually they are not the same, each has an individual ICCID but they all are equal. There is no magic iPhone 4S Micro-SIM.

    There is no specific part number for different types or speeds. It has been the same urban myth since the original iPhone. Apple and AT&T claimed the you needed to use the Mini-SIM that came with the iPhone for better speed or performance. This is just not TRUE! :eek:

    Your speed is determined by many factors and the Micro-SIM is not one of them!

    If you want a source, go to AT&T and ask for an iPhone 4S Micro-SIM and an iPhone 4 Micro-SIM, you will get the next 2 Micro-SIMs from the stack.:D

    Dave
     

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