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difference between 3G,4G & LTE

  • 11-01-2014 5:18pm
    #1
    carlowplayer
    Registered Users Posts: 519 ✭✭✭


    Can anyone explain the differences between them possibly with a brief summary of what they are as well as they're availibility in Ireland explain to me if a device has all three and only one can work can you still properly us wireless connection etc


Comments

  • #2
    carlowplayer
    Registered Users Posts: 519 ✭✭✭carlowplayer


    Say for example I have device from America and the 4g doesn't work because of different bands will it work when it becomes fully availible across Ireland or is no chance of it ever working at all


  • #3
    guil
    Registered Users, Registered Users 2 Posts: 10,497 ✭✭✭✭guil


    carlowplayer wrote: »
    Say for example I have device from America and the 4g doesn't work because of different bands will it work when it becomes fully availible across Ireland or is no chance of it ever working at all

    All depends on what bands it works on.


  • #4
    makoten
    Registered Users, Registered Users 2 Posts: 138 ✭✭makoten


    Let's take the iPhone 5s as an example. The 3 CDMA versions are useless in Ireland and Europe. The China/A1528 has features removed (it doesn't support LTE) so we can ignore these 4 models.

    iPhone 5s (CDMA/Verizon/A1533)
    iPhone 5s (CDMA/China/A1533)
    iPhone 5s (CDMA/US/Japan/A1453)
    iPhone 5s (China/A1528)

    That leaves the following models available:

    iPhone 5s (GSM/North America/A1533)
    iPhone 5s (UK/Europe/A1457)
    iPhone 5s (Asia Pacific/A1530)

    The LTE bands used in GSM/North America are different than Ireland, so you can remove that model. Which leaves us with UK/Europe (A1457) and the Asia Pacific (A1530) model. The Asia Pacific model is sold in markets like Australia and New Zealand as well as Korea, Singapore, and Hong Kong on a variety of carriers - it has all the LTE bands offered by the European version, in addition to TD-LTE (bands 38, 39, 40) which is supported by China Mobile (the world's largest mobile phone operator). So if you're a frequent traveller, it seems the Asia Pacific A1530 model has the most bands available. If you're wondering, Hong Kong is where you'll find the lowest price for iPhones in Asia as all items are tax-free.

    Model A1457: UMTS/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz), GSM/EDGE (850, 900, 1800, 1900 MHz), LTE (bands 1, 2, 3, 5, 7, 8, 20)
    Model A1530: UMTS/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz), GSM/EDGE (850, 900, 1800, 1900 MHz), FDD-LTE (bands 1, 2, 3, 5, 7, 8, 20), TD-LTE (bands 38, 39, 40)


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