A smart cup including a main body having an opening; a cover configured to cover at least one portion of the opening; a driving unit configured to move the cover to open and close the at least one portion of the opening; a motion sensor configured to sense a motion of the main body; a proximity sensor configured to sense an object contacted with or adjacent to the opening; and a controller configured to control the driving unit to move the cover to open the at least one portion of the opening in response to the motion sensor sensing the motion of the main body and the proximity sensor sensing the object contacted with or adjacent to the opening, and control the driving unit to move the cover to close the at least one portion of the opening in response to the motion sensor sensing the motion of the main body and the proximity sensor not sensing the object contacted with or adjacent to the opening.