For a typical 7-day trip exploring Seoul's neighborhoods like Myeongdong, Gangnam, and Hongdae, 10-20 GB of data is usually sufficient. This allows for navigation, ride-hailing, social media, and light streaming without constantly searching for Wi-Fi. Cellesim offers various packages to suit different data needs.
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How much mobile data (GB) do I need for a 7-day trip to Seoul?
Updated May 30, 2026
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