For a typical 7-day trip exploring Tokyo's neighborhoods like Shinjuku, Shibuya, and Ginza, 5-10 GB of data is usually sufficient. This covers navigation, social media, messaging, and light streaming. If you plan extensive video calls or tethering, consider a 15-20 GB plan to ensure uninterrupted 5G/4G connectivity on networks like NTT Docomo or SoftBank.
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How much mobile data (GB) do I need for a week in Tokyo?
Updated May 30, 2026
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