For a typical 3-7 day trip to Budapest, an eSIM with 3-5 GB of data is usually sufficient for navigation, social media, and light browsing. Cellesim offers excellent coverage in Budapest, leveraging local networks like Telekom HU and Vodafone Hungary for reliable 4G/5G speeds across popular areas like the Castle District and Jewish Quarter.
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What's the best eSIM for Budapest travel and how much data do I need?
Updated May 30, 2026
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