Sustainable development goal #11 (SDG#11) deals with making cities inclusive, safe, resilient, and sustainable. SDG#3 deals with “Strengthen the capacity of all countries, in particular developing countries, for early warning, risk reduction and management of national and global health risks” So, the COVID-19 pandemic can be included within the targets of SDG#11 and #3 targets. It is reiterated the necessity of disaster and emergency health risk reduction and the building of resilience within the context of sustainable development concerns. Resilience is a concept also contemplated within the paradigm of smart planning and smart cities. The urban domain is selected to explore the tools used to cope with the current COVID-19 pandemic and that contribute to building resilience. Innovation and the relevance of SDG#9 are clear since the urgency of improvements in general and domestic technology and access to universal and affordable internet have to be guaranteed to achieve the objective of building resilience. A categorized vision of the main technologies, applications, and functionalities within the Smart City domain are discussed to identify the way those technologies support COVID-19 and integrate with the three SDGs fundamentals for resilience building. We hope that this work will contribute for practitioners, policymakers, academics, and citizens to be better prepared for future outbreaks.