Provided is a wearable device. A wearable device according to an exemplary embodiment of the present invention comprises: a main body part including a display unit for augmented reality or virtual reality; a wearing part for maintaining the worn state of the main body part so that the display unit can be disposed on a user's face; a battery part coupled to the wearing part and including a first battery that serves as a main battery providing driving power to the main body part, and a second battery that serves as an auxiliary battery supporting the first battery; and an operation part provided in the wearing part to enable the removal of the second battery from the wearing part during a user's operation.