What is the best CoreESIM for Budapest, and how much data is needed?

For a typical 4-8 day visit to Budapest, a CoreESIM plan offering 4-7 GB of data is generally sufficient. This covers navigation through Buda and Pest, public transport apps, social media, and messaging. CoreESIM leverages Hungary's major networks, such as Telekom HU, Vodafone Hungary, and Yettel (formerly Telenor), ensuring reliable 4G LTE and expanding 5G coverage across the city, from the Parliament Building to the Thermal Baths. Always consider your specific data consumption habits.