The round table explores how Smart Cities can provide solutions to reach Sustainable Development Goal 11 (as established by the UN). The speakers will focus the discussion around three perspectives: The physical transformation of the built environment towards sustainable smart cities, through the use of data and digitalization; The urban agenda as a guideline towards sustainable smart cities; and Collecting data with sensors and IoT, with the help of 5G, to apply Data Analytics and Artificial Intelligence for a more Sustainable City. The audience will take away new knowledge about the latest technologies, applications, and inspiring use cases for Sustainable Smart Cities.