IPhone SE (2016)

iPhone SE is not in any set generation of iPhone, as it was released between the 9th and 10th generation of iPhone. This iPhone model was unique, as it recycled the old iPhone 5S design but with updated internals, and it was very cheap. The "SE" stands for "Special Edition".

This has been rumoured to become a series of iPhones, as iPhone leaks are suggesting an iPhone SE (2nd Generation).