No comprise I find and there getting better. Not sure about the 4 supposed to be top range. I have the 3 had it coming. up to five years. I will be buying a new camera in the new year. In terms of spec rather good not really tested to the full don't tend to be a massive phone buff. Great memory capacity though. The new cameras are up there with the best 👌🏽

They all come unlocked! I do know phone CoOp do contracts with them and are based on EE