I have an IPhone 6 plus and a Galaxy Note Edge. The difference in reception is huge. To me the IPhone doesn't like T-mobile's network. My 6+ has been collecting dust on my computer desk for...tmobilenatl Today, 07:55 PM
XT1103 is the North American version, just make sure that is the one you are getting. XT1100 is the International version no band 12, no spark support on Sprint etc. The phone is completely...HansCT Today, 07:55 PM
I don't think they are interdependent either, but that's what my guess AT&T's reasoning will be if they don't implement it for the 5s.
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