A survey of Hong Kong residents finds that public support for government technology, as understood through the concept of smart cities, is associated with concept-awareness and official communications. The statistical analysis identifies moderating effects attributable to personal social media use and controls for personal ideological views about scope of government intervention and perceived political legitimacy of smart city policies. The study builds on a growing body of empirical scholarship about public support for government technology, while also addressing a practical trend in urban governance: the growing sophistication of technologies like artificial intelligence and their use in strengthening government capacities. The Hong Kong case exemplifies ambitious investments in technology by governments and, at the time of the survey, relatively high freedom of political expression. The study’s findings help refine theories about state-society relations in the rapidly evolving context of technology for public sector use.