Will I have internet coverage on the KTX (High-Speed Train) and in the Seoul Subway with HotelESIM?

Yes, you will! South Korea boasts some of the world's most advanced mobile infrastructure, and HotelESIM leverages this to provide continuous, high-speed 4G/5G signal. You'll stay connected not only within the Seoul and Busan subway systems, including stations and tunnels, but also throughout your journey on the KTX high-speed train. This ensures you can stream, work, or stay in touch with loved ones without interruption, even while traveling across the country.