This chapter conducts a comprehensive literature analysis to investigate the revolutionary potential of fifth-generation (5G) technology in urban tourism. The report brings together studies from 2012 to 2024, focused on how 5G might improve tourism experiences and operations in smart cities. The literature study examines the evolution of mobile communication from 1G to 5G, focusing on technological advances and their consequences for the tourist sector. Integration of mobile networks, big data, 5G, virtual reality, augmented reality, artificial intelligence, cloud computing, WEB3 and IoT were presented. The study also discusses the implementation of 5G in various tourism sectors, with a special focus on smart cities. Future trends are also discussed, with forecasts that 6G will further revolutionize smart tourism by improving connection and data transmission speeds. This analysis emphasizes the need to use new technologies to provide more sustainable, efficient and personalized urban tourist experiences.