According to various embodiments, an electronic device may include a display disposed in a first housing, an input device comprising input circuitry disposed in a second housing arranged to face the display device, a first sensor module disposed in at least a portion of the first housing, a second sensor module disposed in at least a portion of the second housing, a communication module comprising communication circuitry, and a processor electrically connected with the display, the input device, the first sensor module and the second sensor module. The processor may be configured to determine whether sensing data received from the first sensor module and sensing data received from the second sensor module meet a predetermined condition, and to operate the input device in an external input mode if the sensing data provided by the first sensor and the sensing data provided by the second sensor meet the predetermined condition.