A smart watch and a control method thereof are disclosed. The smart watch includes a first sensor unit configured to detect whether the smart watch is worn, a display unit configured to display visual information, a second sensor unit configured to detect movement of the smart watch, and a processor configured to control the first sensor unit, the display unit, and the second sensor unit. If first movement of the smart watch is detected on an arm of a user while the smart watch is being worn, the processor obtains direction and distance of the first movement of the smart watch. If the direction of the first movement is a first direction and the distance of the first movement is equal to or more than a first threshold distance, the processor performs a first function corresponding to the first direction.