Mobile device and method for operating the same

Provided herein are a multi smartphone and a method of controlling the same. The multi smartphone includes a display part configured to output a screen when an input signal is sensed; a memory part configured to store a plurality of operating systems (OSs) which are operated differently based on a time at which the input signal is sensed, a place at which the input signal is input, or a user who inputs the input signal; and a control part configured to perform control such that at least one OS of the plurality of OSs is selected and operated based on any one of a time at which the input signal is sensed, the place at which the input signal is input, and the user who inputs the input signal when the input signal is sensed.