How much data do I need for a Slovakia trip?

For a typical 3 to 5-day Slovakia trip covering Bratislava with a day trip to Devín Castle or Vienna, 5 GB is enough for most travelers. A 7 to 10-day trip adding the High Tatras, Slovak Paradise, and Košice with daily Google Maps, ride-hailing, and casual photo uploads usually needs 10 GB to 25 GB. Heavy users uploading mountain content from the Tatras or working remotely from Bratislava cafés should pick the unlimited plan. Slovakia is compact so daily distances are short, but mountain photo uploads add up quickly.