Can I expect to maintain an internet signal with NorthESIM on scenic Swiss train routes like the Glacier Express?

Yes, you will generally experience a strong and stable 4G/5G signal for most of your journey on Switzerland's scenic trains, including the iconic Glacier Express or Bernina Express. Swiss network infrastructure is excellent. However, please be aware that these routes traverse numerous long tunnels where the signal may temporarily drop. Connectivity will resume shortly after exiting these sections, allowing you to enjoy and share the stunning landscapes.