Hi, I'm going to spend some months sporadically over the next two years in France and have done a lot of reading about how to get my mobile phone working over there. I am currently with Sprint and they say I can get an Iphone5 unlocked and use any SIM card I want and still have my Sprint plan, this seems to go against some of what I've read about Sprint. My contract is up so could change to AT&T or Verizon, but AT&T has spotty coverage here. Other carriers not avail. in my area.

Other options I'm looking at are getting the I9300 Galaxy S3 from Amazon and using SIM card but I'll need to get one for here and one for Europe. Can I get Jellybean on this international S3? Also, I'm not sure I'm understanding the talk about LTE related to this issue.

Other options?