Yes, you can expect excellent internet coverage with CheapESIM while traveling on Japan's world-class transportation systems. Our eSIMs provide stable 4G/5G signals on the Shinkansen (bullet train) routes connecting major cities like Tokyo and Osaka. Additionally, the extensive underground subway networks in Tokyo and Osaka are well-equipped with mobile signal, ensuring you stay connected even underground. This means uninterrupted navigation, communication, and entertainment throughout your journeys, offering great value for your connectivity.
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Will I have internet coverage on Japan's Shinkansen and Tokyo Metro with CheapESIM?
Updated April 22, 2026
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