You have the Americas model, the Japan model, the China model, the Russia model, and then the model for any other country. So the EU ones could be sold in most of the world. They don’t even come with power bricks any more so you don’t need to swap out the plug or anything.
There are different hardware models but it’s mainly based on the radio and there are only 5 different models https://www.apple.com/iphone/cellular/#iphone-se
You have the Americas model, the Japan model, the China model, the Russia model, and then the model for any other country. So the EU ones could be sold in most of the world. They don’t even come with power bricks any more so you don’t need to swap out the plug or anything.