For a typical 5-7 day trip exploring London's sights from Westminster to Shoreditch, we recommend an eSIM with at least 5-10 GB of data. This amount supports daily navigation, ride-sharing apps, social media, and light streaming without relying heavily on public Wi-Fi, which can be inconsistent outside of major venues.
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How much mobile data (GB) do I need for a week in London?
Updated May 30, 2026
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