Does the 4s have 4G speeds?

Discussion in 'iPhone' started by drober30, Oct 4, 2011.

  1. drober30 macrumors 6502a

    Joined:
    Jul 5, 2007
    #1
    I thought during the keynote that it was mentioned 14Mbps download speeds and it was stated that Apples competition calls this 4G?

    Will the 4s have twice the download speeds?
     
  2. iMaconApple macrumors 6502a

    Joined:
    Jun 30, 2009
    Location:
    Sunny Diego
    #2
    Yes 14mb but what's the point of having fast network when companies slow you down and no unlimited data... I wonder if a iPhone with 4G have unlimited data
     
  3. mpossoff macrumors 68020

    Joined:
    Mar 21, 2010
    Location:
    Philadelphia
    #3
    Some of us have unlimited data. The slow down is for top 5% abusers.
     
  4. drober30 thread starter macrumors 6502a

    Joined:
    Jul 5, 2007
    #4
    After some looking on AT&T web site I figured out that it's not 4g speeds but is faster / double that of my current iPhone4.

    Sounds good to me, I have unlimited data but Im sure I don't use that much anyway. It will be nice to have web pages load twice as fast!
     
  5. rjohnstone macrumors 68040

    rjohnstone

    Joined:
    Dec 28, 2007
    Location:
    PHX, AZ.
    #5
    It's 4G.
    Anything using HSPA+ is 4G according to AT&T.
    The iPhone 4S is an HSPA+ device.
    I have an Atrix that is 14.4Mbps HSPA+ (Same as the iPhone 4S) and I have a 4G data plan attached to it.
    And yes, it's unlimited. I was grandfathered in from my old iPhone data plan.
     
  6. cward0715 macrumors regular

    Joined:
    Jul 18, 2010
    #6
    No, it's not. It's HSDPA. There's a difference. It's not 4G
     
  7. rjohnstone macrumors 68040

    rjohnstone

    Joined:
    Dec 28, 2007
    Location:
    PHX, AZ.
    #7
    Good lord...
    HSDPA is part of the HSPA standard.
    It's the downlink side. HSUPA is the uplink side.

    HSDPA rates above 14Mbps are part of the HSPA+ protocol.
    Anything using HSPA+ (which the 4S does) is considered a 4G device in AT&T's eyes.
     
  8. chrislaw macrumors 6502a

    chrislaw

    Joined:
    Apr 11, 2009
    Location:
    central ohio
    #8
    Is HSDPA only for AT&T?

    I'm pretty dim at this sort of thing. I was under the impression that this wouldn't work on Verizon? So the 4s on the Verizon performs just as the 4? Or will it too be at speeds of 14.4?
     
  9. iamthedudeman macrumors 65816

    Joined:
    Jul 7, 2007
    #9
    The iphone 4S has HSPA+. So it is considered a 4G device by ATT.
     
  10. rjohnstone macrumors 68040

    rjohnstone

    Joined:
    Dec 28, 2007
    Location:
    PHX, AZ.
    #10
    Yes, it only works on AT&T and other GSM networks.
    Provided they use the same frequencies of course.
     
  11. LinksAwakener macrumors regular

    Joined:
    May 31, 2011
    #11
    Correct me if I'm wrong, but the iPhone 4S's 14.4 mbps speed is not the same as HSPA+'s speed of 21 mbps, which tells me the iPhone 4S's speed is not 4G speeds.

    :confused:
     
  12. rjohnstone macrumors 68040

    rjohnstone

    Joined:
    Dec 28, 2007
    Location:
    PHX, AZ.
    #12
    Not another one...

    HSPA+ STARTS at 14Mbps, not 21Mbps.
     
  13. LinksAwakener macrumors regular

    Joined:
    May 31, 2011
    #13
    Uhh... okaaaayy. But iPhone 4S speed ENDS at 14Mbps, but AT&T's 4G HSPA+ with backhaul STARTS at 21. And that's where a lot of new phones now START. And that's what AT&T is labeling as 4G now...
     
  14. rjohnstone macrumors 68040

    rjohnstone

    Joined:
    Dec 28, 2007
    Location:
    PHX, AZ.
    #14
    LOL... Ok... if you say so. :rolleyes:

    The iPhone 4S goes up to 14.4Mbps. (HSPA ends at 14Mbps)
    This makes it an HSPA+ device. Barely, but it is.

    AT&T's backhaul starts at 0, and tops out at 21Mbps. ;)
    Backhaul has nothing to do with the type radio used in a phone or tower.
    It's simply a data pipe.
    Even people on EDGE and 3G use the same backhaul as 4G users.
    AT&T does not run a separate data feed just for 4G users.
    Each tower uses the same data line regardless of the incoming signal.
     
  15. LinksAwakener macrumors regular

    Joined:
    May 31, 2011
    #15
    You know...I'm not sure in all honesty why I thought it *started* at 21, that's obviously not true. I think I was typing faster than I was thinking, sorry for that!

    Anyway, yes "backhaul" in general starts at 0, but I wasn't talking about that. I was talking about AT&T's 4G HSPA+ with backhaul. From Wikipedia:

    So while it's true HSDPA tops out at 14.0Mbps, and the iPhone 4S reaches 14.4Mbps, it does so using HSDPA + MIMO (Multi-In, Multi-Out--two seperate 3G 7.2Mbps connections). AT&T networks are now running up to 21Mbps, which they've dubbed "4G", using HSPA+ with enhanced backhaul. These are different technologies (well, different protocol anyway) which tells me the two are not the same, iPhone 4S being a third slower, and therefore not 4G.
     
  16. rjohnstone macrumors 68040

    rjohnstone

    Joined:
    Dec 28, 2007
    Location:
    PHX, AZ.
    #16
    You're reading too much into it.
    HSDPA is part of the HSPA protocol, they are not different technologies.
    It's the downlink side of HSPA and HSUPA is the uplink side.
    HSPA+ is Evolved HSPA.

    AT&T has called any HSPA+ device a 4G device.
    HSPA+ is anything above 14Mbps, not 21Mbps.;)
     
  17. bigjobby macrumors 65816

    Joined:
    Apr 7, 2010
    Location:
    London, UK
    #17
    14.4Mb/s (or pretty much thereabouts) is the lowest end of 4G speeds but I reckon Apple threw that in just for a bit of marketing spin. Personally I think its pretty cheeky to call it 4G but there you go. :)

    To those saying that the iP4S is a HSPA+ device, I really don't know where you got this information from because it certainly isn't from Apple's iP4S tech spec page so please enlighten me. Just because it can reach a certain speed (say 14.4Mb/s) does not automatically classify it as HSPA+.
     
  18. insignificantMB macrumors member

    Joined:
    Jun 24, 2008
    Location:
    Lakers!
    #18
    14 Mb/s on Verizon?

    So will the 4S have 14 Mb/s on Verizon??
     
  19. rjohnstone macrumors 68040

    rjohnstone

    Joined:
    Dec 28, 2007
    Location:
    PHX, AZ.
    #19
    Tech specs page says it all.
    HSDPA 14.4Mbps is HSPA+
    The issue is many here don't appear to understand what HSPA+ actually is.
    HSPA is simply the common name for combined HSDPA and HSUPA.
    You cannot have one without the other, so HSPA covers both in one term.
    Once you break the 14Mbps speed, you are using HSPA+ (Evolved HSPA).
     
  20. chrislaw macrumors 6502a

    chrislaw

    Joined:
    Apr 11, 2009
    Location:
    central ohio
    #20

    Thanks.
     
  21. ECUpirate44 macrumors 603

    ECUpirate44

    Joined:
    Mar 22, 2010
    Location:
    NC
    #21
    Hell no. The phone has the "capability" to, but the network won't be that fast.
     
  22. CBillups1 macrumors 6502a

    CBillups1

    Joined:
    Sep 1, 2008
    Location:
    Michigan
    #22
    where are you guys getting this crap? do not see anywhere that says its 4G. 14mpbs is something different.

    no whee does it says 4G
     
  23. dlewis23 macrumors 6502a

    Joined:
    Oct 23, 2007
    #23
    No 14.4 Mbps is only on AT&T/GSM networks. Verizon and Sprint will use EVDO. Much slower.

    For those that want to know in the real world in a good AT&T area (if you can find one) 14.4 HSPA+ will get 8 - 10 Mbps.


    AT&T calls it 4G.
     
  24. CBillups1 macrumors 6502a

    CBillups1

    Joined:
    Sep 1, 2008
    Location:
    Michigan
    #24
    its not 4G, unless apple says it.

    just looked it up. its an enhanced 3G
     
  25. insignificantMB macrumors member

    Joined:
    Jun 24, 2008
    Location:
    Lakers!
    #25
    Whats a realistic Verizon EVDO speed? 5 Mbps? Is that the same as 3g?
    I am tryna choose between a VZ 4G phone or the new iphone...
     

Share This Page