A speaker device and an electronic device including the speaker device. The speaker device includes a speaker body, which includes a front surface, a rear surface, and a side surface provided between the front surface and the rear surface, and a sealing member provided to enclose at least the side surface of the speaker body, in which the sealing member isolates sound output through the front surface of the speaker body and sound output through the rear surface of the speaker body from each other. The speaker device and the electronic device including the same may be implemented variously according to an embodiment.