An electronic device includes a body, a functional assembly, and a sliding mechanism. The body may define a receiving cavity. The functional assembly may be rotatably connected to the body. The sliding mechanism may be received inside the body. The sliding mechanism may include a sliding rail arranged on one of the body and the functional assembly, and a sliding element arranged on the other of the body and the functional assembly. The sliding element may be slidable along the sliding rail, such that the functional assembly is able to rotate from an inside of the receiving cavity to an outside of the receiving cavity or rotate from the outside of the receiving cavity to the inside of the receiving cavity.