The IET Wireless Symposium 2025 (WS2025), proudly hosted by the Electronics and Communications Section (ECS) of the IET Hong Kong, will spotlight cutting-edge innovations driving sustainable, connected smart city development. This premier event brings together global experts and thought leaders to explore emerging technologies and their real-world applications. Topics include but not limited to: Smart Hospital/Smart Healthcare systems, Mobile Communications, Artificial Intelligence (AI), Logistics Optimization, Intelligent Transportation Solutions, Unmanned Aerial Vehicles (UAVs), and Resilient Mobile Communication Infrastructure etc. The symposium will also examine the integration of Internet of Things (IoT) technologies and the challenges surrounding large-scale deployment. WS2025 promises to be a vibrant forum for networking, collaboration, and shaping the future of urban innovation.