An electronic device is provided. The electronic device includes a housing having a first surface, and a second surface. The second surface includes a first part and a second part that protrudes further than the first part, and a side member configured to be a part of the second surface or formed separately and surround a space between the first surface and the second surface. The electronic device includes a display, a wireless communication circuit, a memory, a processor and electrically connected to one of the display, the wireless communication circuit, and the memory, and a battery configured to supply power to at least one of the display, the wireless communication circuit, the memory, and the processor. A part of the battery is disposed in a partial space between the second part of the second surface and the first surface.