An electronic device is disclosed, including: a housing foldable along at least one axis, a first display disposed on a first surface of the housing, the first display flexible as to switch from an unfolded state to a folded state along the at least one axis, a second display, separate from the first display, disposed on a second surface of the housing opposite to the first surface, and a processor. The processor is configured to: execute a video call including display of a plurality of call targets on the first display, and based on detecting a switch from the unfolded state to the folded state while a number of the plurality of call targets is greater than or equal to a reference value: display a thumbnail of at least one selected call target from among the plurality of call targets in a first sub-region on the second display, and display thumbnails of unselected call targets from among the plurality of call targets in a second sub-region different from the first sub-region on the second display.