A portable electronic device includes first and second parts, each having a front face, a back face, two sides, and two ends. A movable attachment attaches said first and second parts to each other with the front face of the second part against the back face of said first part. It allows a relative sliding movement between said first and second parts to a position in which an exposable portion of the front face of the second part along one of said sides of the second part becomes visible from beneath the corresponding side of the first part. A camera in said second part is located in a center region of said exposable portion between the two ends of the second part, with its viewing direction directed out of said front face of the second part.