Truly Roaming generally provides a signal in the outdoor areas and main pools of thermal baths like Széchenyi or Gellért in Hungary. You should be able to check messages or light browsing. However, be aware that very thick historical walls in deep indoor steam rooms or changing areas might occasionally impede the connection. For critical work, we recommend using the service in more open areas.
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Does the Truly Roaming eSIM work inside Széchenyi Thermal Bath in Hungary?
Updated July 22, 2026
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