The Meizu PRO 7, when it comes out in the next or so months, is going to be one strange phone. That's going to be true whether this latest bit comes to pass or not. Putting a second screen on a phone's back isn't exactly new. There's even a Kickstarter for offering something similar for the iPhone 7 pair. But whereas previous implementations put a full-sized e-ink screen on the back, the Meizu PRO 7 will supposedly have a "mini" screen instead. And it might not even be grayscale e-ink at all.