Hanoi has eyed fast and sustainable development in the direction of green urban area and smart and modern city by 2025. The capital city aims to cement its status as a smart and modern city, and gradually connect with the regional and global smart urban area networks by 2030. According the Hanoi municipal committee, the city has reaped significant achievements in its digital transformation over the past time. Together with accelerating the building of the e-administration, it has applied scientific and technological advancements to handle urgent issues, forming elements to develop a smart city. Zurich took the lead in the index, while Oslo came in second, followed by Canberra, Geneva and Singapore. The 2024 Smart City Index was produced by the World Competitiveness Centre under the Swiss business school Institute for Management Development. In collaboration with the World Smart Sustainable Cities Organization, it listed 142 cities and graded them on the basis of how they use advanced technology to improve the lives of their citizens./.