An electronic device comprising: a housing comprising a portion that is configured to be transitionable between a pop-up state and a non-pop-up state; a locker for releasably holding the portion of the housing in the non-pop-up state; a pop-up device for transitioning the portion of the housing to the pop-up state when the locker releases the portion of the housing; wherein the locker forms part of a rear surface of the device and is arranged to be slidable in a direction away from said portion to release said portion, characterized in that the pop-up device transitions the portion of the housing to the pop-up state by rotating a first side of the portion of the housing via an elastic restoring force such that a second side of the portion pops up, and in that the pop-up device includes: an opening part provided in the housing; a shaft holder part formed at one side of the opening part; a spring support bottom part provided within a passage of the opening part; a shaft at least partially positioned within the shaft holder part and rotatable slidable with respect to the shaft holder part; a body coupled to the shaft and rotatable with respect to the shaft, the body being transitionable between a position at least partially positioned within the opening part and a position at least partially popping out of the opening part; and an elastic member positioned between the body and the spring support part, the elastic member elastically pressurizing the body by pressing against the spring support bottom part. a housing comprising a portion that is configured to be transitionable between a pop-up state and a non-pop-up state; a locker for releasably holding the portion of the housing in the non-pop-up state; a pop-up device for transitioning the portion of the housing to the pop-up state when the locker releases the portion of the housing; wherein the locker forms part of a rear surface of the device and is arranged to be slidable in a direction away from said portion to release said portion, characterized in that the pop-up device transitions the portion of the housing to the pop-up state by rotating a first side of the portion of the housing via an elastic restoring force such that a second side of the portion pops up, and in that the pop-up device includes: an opening part provided in the housing; a shaft holder part formed at one side of the opening part; a spring support bottom part provided within a passage of the opening part; a shaft at least partially positioned within the shaft holder part and rotatable slidable with respect to the shaft holder part; a body coupled to the shaft and rotatable with respect to the shaft, the body being transitionable between a position at least partially positioned within the opening part and a position at least partially popping out of the opening part; and an elastic member positioned between the body and the spring support part, the elastic member elastically pressurizing the body by pressing against the spring support bottom part. an opening part provided in the housing; a shaft holder part formed at one side of the opening part; a spring support bottom part provided within a passage of the opening part; a shaft at least partially positioned within the shaft holder part and rotatable slidable with respect to the shaft holder part; a body coupled to the shaft and rotatable with respect to the shaft, the body being transitionable between a position at least partially positioned within the opening part and a position at least partially popping out of the opening part; and an elastic member positioned between the body and the spring support part, the elastic member elastically pressurizing the body by pressing against the spring support bottom part.