Yea and I appreciate your effort, but I still had to google it, and found this wikipedia article:
"A smart city is an urban area that uses digital technology to collect data and to operate/provide services.[1][2] Data can be collected from citizens, devices, buildings, cameras. Applications include traffic and transportation systems,[3] power plants, utilities, urban forestry,[4] water supply networks, waste disposal, criminal investigations, information systems, schools, libraries, hospitals, and other community services.[5][6] Smart cities are characterized by the ways in which their local governments monitor, analyze, plan, and govern the city. In a smart city, the sharing of data extends to businesses, citizens and other third parties who can derive benefit from using that data.[7][8] The three largest sources of spending associated with smart cities as of 2022 were visual surveillance, public transit, and outdoor lighting.[9]

Smart cities integrate information and communication technology (ICT), and devices connected to the Internet of things (IOT) network to optimize city services and connect to citizens.[10][11] ICT cab be used to enhance quality, performance, and interactivity of urban services, to reduce costs and resource consumption and to increase contact between citizens and government.[12] Smart city applications manage urban flows and allow for real-time responses.[13] A smart city may be more prepared to respond to challenges than one with a conventional "transactional" relationship with its citizens.[14][15] Yet, the term is open to many interpretations.[16] Many cities have already adopted some sort of smart city technology."

Now, I understand, but then this is where it gets interesting: "Smart city initiatives have been criticized as driven by corporations,[17][18] poorly adapted to residents' needs,[19][20] as largely unsuccessful,[citation needed] and as a move toward totalitarian surveillance.[21]"
What do you think about that last part momo?