Samsung follows the carriers where as I think they have the power that apple has to force carriers to do their bidding. My S6 edge is a few months behind androi

Samsung follows the carriers where as I think they have the power that apple has to force carriers to do their bidding. My S6 edge is a few months behind android patch level but I know for a fact that the exact same model in other countries is on patch 1st July patch level. Its the same damn phone. Some people complain that old models are obsolete but what about the same newish model getting the latest security patch in one country and not in another.