Provided are a mobile device and a method of providing content related to an external device. The method may include receiving from the external device an identifier regarding the external device and an identifier regarding a user input that is input to the external device; transmitting to a server the identifier regarding the external device and the identifier regarding the user input; receiving from the server content about the external device and the user input, based on the identifier regarding the external device and the identifier regarding the user input; and displaying the received content on a screen.