We've already shown you the alleged back panel of the Meizu Pro 7 and now a prototype appeared, confirming the rumor. The device is called Prototype 8 and has a rectangular screen on the left side of the back panel, right below the camera setup. The images reveal the alleged back design of the phone. We see the dual cameras are positioned slightly lower than usual, probably to fit the cutout for the secondary screen. According to sources, Meizu Pro 7 will have a glass build for that to work. We are yet to hear from Meizu more about specs of the new phone, but a code leak from...
Source: http://www.gsmarena.com/meizu_pro_7_prototype_confirms_the_secondary_screen_rumor-news-25786.php