Most modern smartphones, generally iPhone XS/XR and newer, Samsung Galaxy S20 series and newer, and Google Pixel 3 series and newer, are eSIM compatible. For Budapest, CoreESIM utilizes Hungary's robust 4G LTE networks and the expanding 5G infrastructure, particularly in urban centers. Your device, if 5G-capable and operating on a CoreESIM plan, will automatically connect to the best available network (e.g., Telekom HU, Vodafone Hungary) and technology (4G or 5G) based on location and network congestion, ensuring optimal data speeds and low latency.
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Is my device compatible with CoreESIM in Budapest, and is 5G available?
Updated May 30, 2026
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