Smart shoes including a sensor unit including at least one sensor of a pressure sensor to sense a pressure in the smart shoes, a temperature sensor to sense a temperature in the smart shoes, an acceleration sensor to sense a movement of the smart shoes and an altitude sensor to sense an altitude, a controller to collect sensor information output by the at least one sensor and process the collected sensor information according to a request from a user device, and a providing unit to provide the processed sensor information to the user device.