As of my last knowledge update in January 2022, several Vietnamese cities were making strides towards becoming smart cities, leveraging technology to enhance urban living. Hanoi and Ho Chi Minh City, in particular, were investing in initiatives such as intelligent transportation systems, smart lighting, and digital governance to improve efficiency and sustainability. These initiatives aimed to address challenges like traffic congestion, environmental concerns, and urban management.

Smart city projects in Vietnam often involve the integration of IoT (Internet of Things) devices, data analytics, and advanced communication networks. These efforts contribute to improved urban planning, resource management, and citizen services. As technology continues to evolve, it's likely that Vietnam's smart city initiatives have progressed further, offering residents and businesses enhanced connectivity, energy efficiency, and a more responsive and sustainable urban environment.