Disclosed are a smart watch and a method of operating the same, in which fingerprint information and biometric information are measured by a single motion, a certain duration is set such that biometric information measured in the duration is generated into authenticated information or secured information, and transmitted or output to the outside. The smart watch includes a body, a fingerprint information acquisition unit provided on one surface of the body and configured to acquire fingerprint information about a user by a touch pressure applied from an outside, a biometric information acquisition unit provided on the other surface of the body, opposite to the one surface of the body, and configured to acquire biometric information about the user while contacting the skin of the user, and a control unit provided in the body and configured to acquire the fingerprint information and the biometric information for a predetermined period of time based on a point in time at which the touch pressure is applied if the touch pressure is greater than a reference pressure, and to generate user authentication information by using the acquired fingerprint information and biometric information.