hi, i want to confirm can i buy an iPhone 6+ in japan that are unlocked to be use in other countries ? im asking because the iPhone is not yet launched in my Country and I'm going to Japan for holiday in the next two weeks. so I'm planning to buy my iPhone 6+ there. last time i remembered that in previous iPhones in different countries has different frequencies and model number. so i want to know whether the 6+ is like that or not. thank you.