That cellphone parts retailer got their hands on what they say is a rear shell for Apple's next 4" iPhone. The shell looks somewhat like the shell for the iPhone 5C from 2013, but there are a few subtle differences.
The new shell has a different cutout for the camera's flash, as well as different grills on the bottom edge. It also looks to be designed to fit a thicker smartphone than the iPhone 5C, suggesting that the new model will be chunkier than before.
As always, there's no way to tell for sure that this is real, but I would bet that it is. Rumors about the new 4" iPhone have been circulating since December. I haven't reported on most of them but I did think they could come true.
Apple has been trending towards having more and more screen sizes, and a 4" iPhone would be popular with those who don't want to buy an iPhone phablet.