Hi everyone! I'm new to the world of Xperia and looking hard at the X Compact for my next phone. I've read through the Sony "White Paper" for the Compact and see there's one model number - F3521 - for presumably slightly different versions that will be sold worldwide. My question is about 4G LTE support: Sony lists 17 bands of LTE (13 FDD and 4 TDD) in the White Paper so the question is... Do all versions of the X Compact sold worldwide support 17 4G bands, or is Sony simply listing all bands the X Compact is capable of supporting and they will mix & match frequencies depending on where the phone is being marketed? Thanks for any help!