The chapter adopts a systematic literature review and comparative case study design to examine projects in Barcelona, Amsterdam, Singapore, Accra, and Rio de Janeiro to understand how artificial intelligence, IoT sensors, and open-data platforms facilitate participatory governance. The results indicate that the digital citizen hubs and co-creation labs have a substantial positive impact on participatory decision-making and service uptake, with measurable rises of up to 35 per cent in engagement and 27 per cent in service uptake among disadvantaged groups. Nevertheless, regions where the broadband penetration is less than 50 per cent experience increased disparities with the technocentric deployments. The paper proposes multi-stakeholder partnership, ethical data governance, and sustained digital-literacy programmes as some of the facilitators of fair scaling. The chapter adds to what we know in academia and policy about how urban technologies can help achieve SDG-11 by recommending specific measures to use and a plan for spreading these technologies in various city environments.