Jet White iPhone 7 and iPhone 7 Plus mockups appear in video
A set of mockups showing the Jet White iPhone 7 and iPhone 7 Plus can be seen in a video posted on Twitter by reputable leaker Sonny Dickson. While these white casings may appear to be the real deal, they are in fact made by a third-party vendor and are meant to mimic what could be the original Jet White iPhone 7/7 Plus.
One can tell that these casings are just fake mockups by the lack of the Apple logo from the iPhone 7 model. There are other differences such as the finish that doesn't seem to have been applied in the same manner as Apple does it, so the fake casings feature an eggshell looking texture rather than a high-glossy one.
Nevertheless, the purpose of the video is probably to let Apple fans know that Jet White (or whatever the name) iPhone 7 and iPhone 7 Plus could be in the works.
Apple hasn't yet confirmed these devices, so it's hard to tell whether or not they will be released on the market. The Jet White iPhone 7/7 Plus devices would have probably sold very well during the holiday shopping season.