When turning 3G setting to OFF...

Discussion in 'iPhone' started by insocal, Jun 23, 2008.

  1. insocal macrumors regular

    Jul 31, 2007
    Does that shut down your internet connection on the iPhone? Or does it just switch it to EDGE?
    Wondering if it'll be easy to turn 3G off to save power when not browsing the internet but still receive e-mail on a regular schedule?
    Thanks for the info!
  2. nakile macrumors regular

    Jun 30, 2007
    Yes, the phone reverts to EDGE when 3G is turned off. Sounds like a good idea to me.
  3. Deadman64 macrumors 6502a

    Jun 2, 2008
  4. Andrmgic macrumors 6502a

    Jun 27, 2007
    There have been screenshots of the option from the 2.0 firmware.
  5. citron230 macrumors 6502a


    Dec 17, 2007
    San Diego, CA
    it would be nice if it could be a feature that you could set up on a schedule in order to optimize battery life.
  6. zainjetha macrumors 6502a

    Aug 11, 2007
    so basically you get a longer battery life while using edge/ so basically if u are just using the Phone and iPod on a regular basis and just turn on 3G for when you actually need to browse, that seems the best way.. i mean for downloading emails in the background (unless an urgent mail is coming) edge should be fine?
  7. jettoblack macrumors member

    Nov 1, 2006
    Note that in many cases, 3G uses less power than GSM/EDGE. If you want to download X amount of data, then 3G will use less power because the download will finish much quicker than on EDGE; even though EDGE is using slightly less power per second, it requires many more seconds to complete the task.

    OTOH, with something like a chat program where you need a persistent data connection for Y minutes regardless of the amount of data, then EDGE may use less power.

    It also depends on what towers you are near. If you have a good strong 3G signal, then using 3G will use less power than trying to communicate with a weaker GSM/EDGE signal, and vice versa.
  8. TXCraig macrumors 6502a


    Jul 2, 2007
    Houston, TX
    Do you have anything to back this up? Or is this just your logic?
  9. cWeems macrumors 6502a


    Jun 8, 2008
    UM LOGIC... like in the keynote, 21 secs on 3G juice, or 59 secs on EDGE juice. hmmmmmm
  10. diamond.g macrumors 603


    Mar 20, 2007
    It will be fine as long as you don't mind possibly missing a phone call. Remember only 3G allows for voice and data transfers to happen at the same time. With EDGE you will have to favor one over the other (especially if you get a lot of email).

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