An eSIM (embedded SIM) is a digital SIM built into your phone. You download a mobile plan as software — no plastic card to insert — and get the same cellular data connection as a physical SIM. ByeRoaming travel eSIMs are prepaid data plans you install by QR code or iPhone quick install, then enable when you land.
How it differs from a physical SIM
- No store visit or card swap when you change countries
- You can keep your home SIM for calls/SMS while using travel data
- Multiple eSIM profiles can sit on one unlocked, eSIM-capable phone
Next steps: Check which devices support eSIM, then browse destinations or install guides for iPhone and Android.