Recent years have witnessed problems in the field of energy, and quality of life. in scope of technical progress and continuous increase in population here is come the need to create smart cities, by develop the existing cities to become smart cities, or build new cities that established from the beginning using sophisticated technological systems. The study cover smart cities from many aspects, the researcher address some important topics in smart cities, also point to some applications that could be implemented in the existing cities to develop services for people and enhance the quality of life and to provide a sustainable digital environment that become friendly to environment and encourage for learning and creativity to achieve happiness and welfare. The study explains some basic standard criteria for smart city, we apply these standard criteria on the Future City (which the researcher was one of its design team and make main role in the final design) to see how much this city achieve these standard criteria and list these results in the end of the research. The researcher follows in this research the inductive, analytical and practical approach to learn about the role of smart cities in achieving progress and welfare of the citizens.