When evaluating a VPN for use in Hanoi, focus on connection speed (download/upload speeds, latency, and consistency), server network (count in Asia-Pacific region, server load, and specialized servers), security performance (DNS/IP leak protection and kill switch reliability), connection reliability (disconnection frequency, reconnection time, and stability across networks), and application performance (resource usage, startup time, and device compatibility). For optimal experience in Hanoi,
prioritize VPNs with servers in Vietnam or neighboring countries like
Singapore,
Hong Kong, or
Japan to minimize latency while maintaining strong security features.