Will I have good signal on bullet trains in Japan or in Hanoi subways?

EastESIM partners with leading local carriers across Asia, ensuring excellent coverage even in transit. On Japan's Shinkansen (bullet trains), you can expect reliable 4G/LTE connectivity for most of your journey, perfect for catching up on emails or streaming. Similarly, major urban transit systems, including the emerging subway lines in cities like Hanoi or Ho Chi Minh City, generally offer strong signal within stations and tunnels. We prioritize networks that provide robust coverage for your exploration, from bustling city centers to scenic journeys.