The present invention relates to an electronic device to be worn on a user body, the electronic device comprising: a sensor configured to sense the user body and generate body condition information； an operation implementator configured to perform a health care operation having one state among a plurality of operation states； a communicator configured to communicate with an external device； and a controller configured to: control the operation implementator to perform a health care operation of one state among the plurality of operation states with regard to the user body, control the communicator to transmit the body condition information and information about the operation state of the operation implementator to the external device, and control the operation implementator to perform the health care operation of the operation state corresponding to user control information received from the external device through the communicator among the plurality of operation states of the operation implementator. Thus, it is possible to be worn on a user's body and sense the user's body, transmit the sensed information, and provide a health care operation to a user in response to the received user control information.
