An electronic device includes a frame, a display mounted within the frame, a rear cover, and two switch mechanisms slidably connected to two lateral surfaces of the frame. The rear cover includes at least two opposite hooks on two opposite flanges and two opposite recessed portions on the bottom of two opposite sides thereof, respectively. Each of the two switch mechanisms includes at least one hook portion engaged with a corresponding one of the at least two hooks, and a handle exposed by each of the recessed portions. The handles are forced by an external force to switch the at least two hooks and the at least two hook portions between an engagement state and a disengagement state.