Woops, sorry, yes, I was conflating the 5c with the original SE release.
So that gives another example of apples making a new low-end device from a mix of old and new components.
5c new plastic body, better front camera and LTE than 5.
SE new low-end device with display of 5s, processor and back camera of 6s, front camera of ??, etc.
You're thinking of the iPhone 5c, which came out at the same time as the 5s -- well before the SE, which, slightly confusingly, was released after the 6. The SE has always had a metal body.