An electronic device (401) including a proximity recognition module (410) configured to recognize second electronic device (402) proximate to the first electronic device (401), a communication module (420) configured to wirelessly transmit and receive data to and from the second electronic device (402), and a power supply module (440) configured to apply at least one of power charged in the first electronic device (401) and power wirelessly supplied from the second device (402) as power for the communication module (420), based on the recognition with respect to the second device (402). The other embodiments are also possible.