An electronic device includes a hinge module; a first housing, a second housing, and a flexible display. The first housing is connected to the hinge module. The second housing is connected to the hinge module. The flexible display is disposed through at least a portion of the first and second housings. The flexible display includes a display panel includes a first surface facing in a first direction and a second surface facing in a direction opposite, when the electronic device is in an unfolded state. The flexible display also includes a window layer disposed at the first surface and a metal sheet layer. The display panel, the window layer, and the metal sheet layer are disposed so that a separation distance between the display panel, the window layer, and the metal sheet layer and inner side walls of the first and second housings and generates different interlayer slips.