In recent years, the expansion of the Fourth Industrial Revolution (or Industry 4.0) to cities has disrupted the way in which cities are planned and developed as well as having generated a new city conceptualization-i.e., City 4.0. This new smart city blueprint, City 4.0, aims to leverage the power of engaged and connected citizens, digital technology, and data to ensure and enhance the quality of urban life, productivity, and sustainable development. In other words, City 4.0 is a city that utilizes technological developments and digitalization to transform local public services and the local economy to produce sustainable and desired urban, environmental, and societal outcomes for all. This reprint further elaborates the concept of City 4.0.