An electronic device according to various embodiments may comprise: a first camera for capturing an external environment in front of the electronic device; a second camera for capturing a direction opposite to a capturing direction of the first camera in order to identify gaze directions of the left eye and the right eye of a user; a first display panel corresponding to the left eye; a second display panel corresponding to the right eye; a memory; and a processor operably connected to the first camera, the second camera, the first display panel, the second display panel, and the memory. The processor may: identify the dominant eye and the non-dominant eye among the left eye and the right eye; identify a main display corresponding to the dominant eye between the first display panel and the second display panel, and an auxiliary display panel corresponding to the non-dominant eye between the first display panel and the second display panel; and change at least some of settings of the main display panel. Various other embodiments may be possible.