According to an embodiment of the disclosure, an electronic device may include a speaker, a microphone, a wireless communication circuit, and at least one processor connected to the speaker, the microphone, and the wireless communication circuit. The at least one processor may be configured to: in response to a user's voice command received through the microphone, perform a task corresponding to the voice command, based on an information amount contained in a result of the task, determine a type of the result to be visually appropriate or auditorily appropriate, and based on the type of the result, determine a device for providing the result as a screen device or a speaker.