1. MassDeduction's Avatar
    I'm looking to get this phone to replace my 1520 (yes, really) because I want a dual-SIM phone, I like phablets, and I think this will be more suitable to my uses (better battery life, etc.). But there are a lot of variants and I'm trying to figure out which is the one I want. Does anyone have a list of the variants yet? I want the LTE dual-SIM variant, as it has better frequency support than any other Windows phone. Don't take my word for it, Microsoft web site lists:

    Band 1, 17, 2, 20, 3, 4, 5, 7, 8, 28, 12, 38, and 40. Dang! And some of those are key, such as Band 12 for roaming on T-Mobile's network (I'm in Canada, but travel in the U.S. from time to time).

    The regular LTE version has far less frequency support than the dual-SIM version, it seems.

    I read an article that suggests the 640 XL has the following variants:

    RM-1062
    RM-1063
    RM-1064
    RM-1065
    RM-1066
    RM-1067

    It lists the RM-1063 as the AT&T variant. Any idea about the others?
    03-08-2015 08:54 PM
  2. sahib lopez's Avatar
    might be the 1065. im guessing since the 830 is RM 985 and the 1320 is RM995 they both have 5 at the end ... worth a guess on my part :P
    DuncanBishop likes this.
    03-08-2015 10:37 PM
  3. Lilla45's Avatar
    The info presented below is based upon the article at www(dot)nokiapoweruser(dot)com/tag/rm-1063/
    and Detailed Technical Datasheets (not Quick Datasheets) of Lumia 640 devices at www(dot)pdadb(dot)net
    Note. Above, please replace (dot) with a period as my posts cannot include links until I have posted 10 posts, this is my first post.

    Lumia 640 XL variants include:
    • RM-1062 - Microsoft Lumia 640 XL LTE
    • RM-1063 – Microsoft Lumia 640 XL LTE NA (North America) AT&T [Note. There is currently no entry for RM-1063 at www(dot)pdadb(dot)net, but I assume it is the XL counterpart to RM-1073 for which there is an entry.]
    • RM-1064 -
    • RM-1065 -
    • RM-1066 -
    • RM-1067 - Microsoft Lumia 640 XL LTE Dual SIM


    Lumia 640 variants include:
    • RM-1072 – Microsoft Lumia 640 LTE
    • RM-1073 - Microsoft Lumia 640 LTE NA (North America) AT&T
    • RM-1074 -
    • RM-1075 -
    • RM-1076 -
    • RM-1077 - Microsoft Lumia 640 LTE Dual SIM
    Last edited by Lilla45; 03-11-2015 at 01:01 AM.
    sahib lopez likes this.
    03-09-2015 01:22 AM
  4. MassDeduction's Avatar
    Thanks! So it looks like the RM-1067 is the one to get. Appreciated! :)
    03-10-2015 12:46 PM
  5. Lilla45's Avatar
    The info presented below is based upon the articles at www(dot)nokiapoweruser(dot)com/tag/rm-1063/
    and www(dot)nokiapoweruser(dot)com/lumia-1330-1335-is-first-lumia-with-dual-sim-lte-support-reveals-fcc-certification-for-rm-1064-rm-1065/
    www(dot)nokiapoweruser(dot)com/lumia-1335-rm-1062-is-first-lumia-with-lte-advanced-support-reveals-fcc-listing/
    Note. Above, please replace (dot) with a period as my posts cannot include links until I have made 10 posts, this is my 2nd.

    RM-1064 - Microsoft Lumia 640 XL LTE Single SIM - Global
    RM-1065 - Microsoft Lumia 640 XL LTE Dual SIM - Global
    RM-1066 - Microsoft Lumia 640 XL 3G Single SIM
    Last edited by Lilla45; 03-11-2015 at 01:35 AM.
    shubin likes this.
    03-11-2015 01:18 AM
  6. the_moesiah's Avatar
    I'm looking to get this phone to replace my 1520 (yes, really) because I want a dual-SIM phone, I like phablets, and I think this will be more suitable to my uses (better battery life, etc.). But there are a lot of variants and I'm trying to figure out which is the one I want. Does anyone have a list of the variants yet? I want the LTE dual-SIM variant, as it has better frequency support than any other Windows phone. Don't take my word for it, Microsoft web site lists:

    Band 1, 17, 2, 20, 3, 4, 5, 7, 8, 28, 12, 38, and 40. Dang! And some of those are key, such as Band 12 for roaming on T-Mobile's network (I'm in Canada, but travel in the U.S. from time to time).

    The regular LTE version has far less frequency support than the dual-SIM version, it seems.

    I read an article that suggests the 640 XL has the following variants:

    RM-1062
    RM-1063
    RM-1064
    RM-1065
    RM-1066
    RM-1067

    It lists the RM-1063 as the AT&T variant. Any idea about the others?
    Don't forget that Microsoft has promised that a new high end phone week come out around the same time as Windows 10. It might be worth it to wait.
    03-13-2015 11:38 PM
  7. MassDeduction's Avatar
    I appreciate the reminder, but I think I might get better battery life out of a slightly less high-end phone. Also, as someone who has broken my Lumia 1520 *twice*, I see some value in cheaper repair/replacement. :)

    Finally, high-end phones are almost never dual-SIM. Dual-SIM is largely popular in places where entry-level phones are the most common/popular. So the high-end Windows Phone is unlikely to be dual-SIM. I'd be pleased to be surprised, but again battery life may suffer due to more horsepower. Finally, most flagship devices are not phablets. The Lumia 1520 was unusual for both being a phablet and a flagship. Perhaps there's a bit of a trend that way, as the best iPhone is also a phablet (well, sort of... 5.5" barely counts as a phablet for me, and the iPhone 6 Plus is also not as high-end as many competing devices). But the majority of flagships are like the Galaxy S5, the iPhone 6, the HTC One, etc., they're in the 4.7" to 5" range. I want a phablet for sure.

    So perhaps the upcoming Windows 10 flagship will be a 5.7-6" phablet that's incredibly cheap to repair/replace, is dual-SIM, and has battery life to spare. But I think the odds are against it. :)
    03-14-2015 07:54 PM
  8. MSXManiac's Avatar
    RM-1067 it's not LTE.
    RM-1065 it's LTE.
    09-15-2016 06:54 PM

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