Microsoft wasn’t kidding around last year when it announced the Surface Duo, an Android phone with two 5.6-inch screens joined at the hinge so it can unfold into a tablet. The company has confirmed it’ll launch the device on September 10, with a $1,399 price tag. The two OLED displays feature a 4:3 aspect ratio and a resolution of 1800 x 1350 pixels, and together, they form an 8.1-inch screen at 2700 x 1800 pixels, with a 3:2 aspect ratio.