For a typical 3 to 5-day Bucharest city break, 5 GB is enough for most travelers. A 7 to 10-day trip adding the Transylvania castle circuit, Brașov, and Cluj-Napoca with daily Google Maps, ride-hailing, and casual photo uploads usually needs 10 GB to 25 GB. Heavy users uploading content from Carpathian road trips, attending Untold Festival in Cluj, or working remotely from Bucharest cafés should pick the unlimited plan. Romanian intercity travel involves significant navigation and live booking lookups — 25 GB is the sensible floor for a 10-day road trip.