A portable electronic device includes a shell and an image capturing assembly configured to capture images. The shell includes a front surface, a rear surface facing away from the front surface, and a top surface. The top surface is connected substantially perpendicularly between the front surface and the rear surface. The top surface defines a cutout. The cutout runs through both the front surface and the rear surface. The image capturing assembly is pivotably received in the cutout and is configured to capture images.