Two 3G iPhones: one slow, one fast

Discussion in 'iPhone' started by taphil, Aug 17, 2008.

  1. taphil macrumors regular

    Jun 16, 2007
    So I have my hands on two iPhones (both 16GB black) and did speed tests. One was consistently faster than the other my several fold. The one on the left is a week 31, the one on the right week 27. Both show 4-5 bars.

    Test 1

    Test 2, same as Test 1 but 5 minutes later

    Test 3, I switched SIM cards, and the phone on the right still remains fast

    Only about 1/10 of the time could I get the phone on the left to be as fast as the phone on the right, whereas the one on the right was almost always faster.
  2. TwinCities Dan macrumors 603

    TwinCities Dan

    May 19, 2008
    Double Parked out front of the Courthouse
    Hmmm...That's not good. Seems to me that Apple might have to fess up to a hardware problem (eventually ;)) :(
  3. kornyboy macrumors 68000

    Sep 27, 2004
    Knoxville, TN (USA)
    Wirelessly posted (iPhone: Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_0_1 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Version/3.1.1 Mobile/5B108 Safari/525.20)

    Those are some pretty good speeds on the one on the right. I get very close to what you have on the left on my 16GB black that I received on July 21. I wonder if Apple quietly fixed a hardware bug or something.
  4. McGiord macrumors 601


    Oct 5, 2003
    Dark Castle
    Is there a way to know to if they are connected to the same cell ?

    What happens if you switch off the fastest one?
  5. hexonxonx macrumors 601

    Jul 4, 2007
    Denver Colorado
    Is that being tested using WiFi?

    I have two 3G iPhones here as well but I don't have weird speed differences that you are seeing there, mine are pretty mush the same on each phone.
  6. taphil thread starter macrumors regular

    Jun 16, 2007
  7. alphaod macrumors Core


    Feb 9, 2008
    Looks like one is using 3G and the other using EDGE…
  8. dboy261 macrumors newbie

    Aug 7, 2008
    how do i do that

    can someone tell me what site that is or how can i perform this same test with my phone i would like to know where i stand thanks
  9. AndroidSUCKS macrumors newbie

    Jul 15, 2008
    What's the exact URL? I'd like to try it on mine.

    And during your test, which iPhone feels hotter/warmer?
  10. sr5878 macrumors 6502a

    Jun 5, 2007
  11. uiop. macrumors 68020


    Jul 22, 2008
    Grand Rapids, MI
    Uh oh. My speeds are very similar to the one on the left when I get full service...
    Could it be a defective batch?
  12. hotshotharry macrumors 6502

    Sep 6, 2007
  13. Blown01NJ macrumors member

    Jul 29, 2008
    Great, Im getting speeds like the one on the left.
  14. JML42691 macrumors 68020


    Oct 24, 2007
    Nope, they are both connected to the 3G network, look at the icon at the top.;)
  15. Van Wildonher macrumors 6502a

    Apr 29, 2008
    Open the field test and check signal strength and whatnot.
  16. Ozzhead macrumors member

    Jul 26, 2008
    you need to charge both of those phones, going to die soon.:)
  17. Zwhaler macrumors 604


    Jun 10, 2006
    I got 1.37 mb with my phone on 3G, so I think I'm good.
  18. mark34 macrumors 6502a

    May 18, 2006
    I am getting speeds like the one on the right with 3G
  19. pj rage macrumors 6502

    Jul 15, 2008
    I get speeds just like the right (high) when on 3G and get speeds just like the left (low) when on edge.

    I notice the 3G icon on both of those test phones, but I wonder if, for some reason, the phone is reporting 3G but using edge. That is, a bug of some sort that might be corrected in the next firmware rev?

    Did you try restarting the phones? If you have the chance, you should try them both on edge and then try 3G again.

    Also, I think is a better test site (or at least, it's a good one, I don't know the one you used). The techniques they use there make it better from what I've read.
  20. NoOtherOne macrumors member


    Jul 11, 2008
    Wilmington, Dela-where?
    I agree -- I like better.

    According to that site, my average WIFI speed is 4153.83 kbps, 3G is 696.5 kbps, and 203.5 kbps for EDGE. So my 3G isn't as good as your "good" iPhone, but not as bad as your bad one... Not sure if that makes my phone of the 2% with a problem or not.
  21. Small White Car macrumors G4

    Small White Car

    Aug 29, 2006
    Washington DC
    I did the same test as the O.P. last week with almost the EXACT SAME results!

    He's not making this up.

    My phone was constantly between 1000-1200 and my cousin's was always in the 300-500 range. Both on 3G.

    He's had good 3G speeds sometimes too, so it's not totally broken, but for one Saturday that was all we could make his do, even side by side with mine, which always did fine.
  22. guitarliketom macrumors member

    Jul 9, 2008
    i thought mine ran slow when i had full service.. its at 604 kbps....

    i have often found myself turning off 3g because a connection times out and then turning it back on
  23. deannnnn macrumors 68000


    Jun 4, 2007
    New York City & South Florida
    Try resetting the network settings and trying the tests again.
  24. taphil thread starter macrumors regular

    Jun 16, 2007
    Here's an update.

    Last night, I rebooted both phones and they began showing similar speeds. I guess there was something running that was slowing one of the phones down, even though both are set up the same.
  25. equlizer macrumors regular

    Aug 12, 2008
    Testing using and getting:

    2.14Mbps (2143Kbps / 262kB per second
    Type: 3G
    you are 10.72x faster than Edge
    latency: 509.75ms

    Just did a Wifi test and Im only getting 2.78Mbps (not much faster than 3G)

    how fast should Wifi be? ITs a "G" wifi router i have

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