The literature has no single complete definition for the term. To put it simply, smart cities use modern information and communication technologies, such as for economic issues, mobility, widespread access to information about the city, its infrastructure and development plans – all in order to improve the living standards of the residents. Is this utopia or reality? Although we already take advantage of the opportunities offered by modern technologies, we are not yet living in smart cities. However we are implementing some elements of the concept, ones which, in addition to being innovative, are also based on creating more sustainable cities, especially in terms of the energy economy, with the idea of using renewable sources and implementing systems to reduce energy and water consumption. Smart cities are also safe, accessible to everyone, regardless of their level of physical ability, with the intention of achieving active cooperation between the residents and the representatives of the municipal authorities.