This is either a really small iPhone, or a dude with really big hands. You be the judge.
A video just uploaded by M.I.C. Gadget claims to show a new 4-inch iPhone, and if it's real, that'd mean it's a very first look at the iPhone 6c, which, according to the 9to5 Mac report, is set to release this Spring. The new iPhone is rumored to be very similar in style to the iPhone 6s, the main difference being, of course the 6c is only 4 inches, while the 6s is just a bit over 6 inches.
But, one big flaw of this video is there's no size comparison. So, you basically have to take this guy at his word. However, 9to5 Mac does testify that M.I.C Gadget "has a reasonable history of obtaining device hands-on ahead of time."