The "Smart" city definition depends on what each vendor defines as "smart"
When asked about defining smart cities, we brought the perspective of citizens and specialists. Unlike the traditional definition of smart cities for city halls, there's little connection between what city governments do and citizens perceive.
In fact, most of the "smart city" approaches in the tech world, focus only on city governments. We understood that the way city management is structured focuses on silos (Health, Labor, Education, Transport) while life of citizens in the city tends to be transversal. That means that there's a disconnect between economic metrics and city livability.
More information is available in this Linked Urban document.