A travel eSIM is usually the easiest way to get mobile data abroad: you buy a data plan online, install it with a QR code or app before you leave, and it activates when you land. A local SIM often gives the best value for longer stays and includes a local phone number. Carrier roaming is the simplest but often the most expensive. Your phone must be unlocked and eSIM-compatible to use a travel eSIM.
Mobile data abroad is essential for maps, translation and bookings. Here are the three main ways to get it.
Side by side
| Travel eSIM | Local SIM | Carrier roaming | |
|---|---|---|---|
| Setup | Buy and install online before the trip | Buy on arrival at a shop or airport | Usually automatic or a simple add-on |
| Cost | Moderate | Often cheapest for longer stays | Often most expensive |
| Local number | Usually no | Yes | No (your home number) |
| Multi-country | Regional plans available | Usually one country | Depends on carrier |
| Keeps home number active | Yes, on dual-SIM phones | Only on dual-SIM phones | Yes |
Travel eSIM
You buy a data plan from an eSIM provider, scan a QR code or use the app to install it, and it switches on when you arrive. Regional plans cover several countries in one purchase.
Check first:
- Your phone is unlocked and eSIM-compatible.
- The plan covers every country on your trip.
- The data allowance and validity period fit your trip.
Local SIM
Buying a SIM at the destination often gives the most data for the money, plus a local number for calling restaurants and tours. You may need your passport to register it.
Carrier roaming
Many carriers offer daily or monthly international passes. Roaming is the simplest option and keeps your number, but compare the cost with an eSIM before you go.
Tips
- Install your eSIM before departure while on Wi-Fi, and switch it on when you land.
- Turn off data roaming on your home line to avoid surprise charges.
- Download offline maps as a backup.
Common questions
Does my phone support eSIM?
Most recent iPhones and many recent Android phones support eSIM. Check your phone's settings for an option to add an eSIM, and make sure the phone is unlocked from your carrier.
Can I keep my regular number while using a travel eSIM?
Yes, on dual-SIM phones. Keep your home line active for calls and texts if you need them (roaming charges may apply), and set the travel eSIM for data.
Do travel eSIMs include a phone number?
Many are data-only. Use messaging and calling apps over data, or choose a plan that includes a number.