The Apple iPhone 6 will reportedly employ curved glass. If so, you cannot see it from the video. What you can see is a back that calls to mind the HTC One. The front screen includes thinner side bezels and is expected to be 4.7 inches. If you're looking for some kind of connection that could show the legitimacy of the video, the design and size almost perfectly matches an iPhone 6 mockup that was displayed at a Hong Kong electronics fair earlier this month. Even more interesting is that the back resembles a picture said to be that of the iPhone 6, taken by a "Foxconn Insider" late last month.
To view four seconds of what is supposedly the Apple iPhone 6, click on the video below.
Thanks for the tip, Enam!