There is a possibility I might move to the UK for a job, I plan on being there for awhile (at least three years). I am off-contract with Verizon (unlimited data) on iPhone 6+. Probably going to have to say goodbye to that if I go (unless there's an idea someone has). Can I take my US iPhone and have it function properly on a UK carrier? I'm not looking to roam, but rather purchase a plan with a carrier, probably O2 (reading a lot of positive comments about them). Keep in mind I am not very technically savvy, have no idea on what SIM cards are, etc....so if that's part of the response, please dumb down how it works.