What a travel eSIM is
An eSIM is a digital SIM built into your phone. A travel eSIM gives you local mobile data abroad without swapping plastic cards or paying your home carrier’s roaming rates. You buy a plan online, scan a QR code (or tap install in an app), and the plan activates when you land.
Step 1 — check your phone
- eSIM support: most recent iPhones, Google Pixels and Samsung Galaxy flagships support eSIM; many budget phones don’t. On iPhone look in Settings → General → About for “Digital SIM”; on Android, look for “Add eSIM” under SIM settings.
- Carrier lock: a phone locked to your home carrier may refuse a third-party eSIM. Ask your carrier to unlock it before the trip.
- Region variants: some phones sold in certain countries ship without eSIM — check your model number.
Step 2 — choose the right plan type
| Plan type | Best for | Watch out for |
|---|---|---|
| Country plan | one destination | buying separate plans for each stop |
| Regional plan (e.g. Europe, Asia) | multi-country trips | which countries are actually included |
| Global plan | round-the-world travel | higher price per GB |
| “Unlimited” plan | heavy users | fair-use throttling after a daily cap |
Step 3 — compare the details that matter
- Data amount and validity (e.g. 10 GB / 30 days). Buy a little more than you think — maps, photos and video calls add up.
- Network partners: good providers list which local networks they use. Better networks mean better coverage outside cities.
- Speed: 4G/LTE is standard; 5G costs more and isn’t always available.
- Hotspot / tethering: some plans forbid sharing data with a laptop.
- Top-ups: can you add data without reinstalling?
- Phone number: most travel eSIMs are data-only. If you need a local number (for ride-hailing SMS codes or bank OTPs), keep your home SIM active for SMS or buy a local SIM.
Well-known providers
Travellers commonly compare Airalo, Holafly, Nomad, Saily and Ubigi. Prices change often and vary by country, so compare for your exact destination and dates. (Some of our links are affiliate links — we may earn a commission at no extra cost to you.)
Install and activate — the smooth way
- Install at home on Wi-Fi a day or two before you leave (installation is one-time).
- Label it (e.g. “Travel data”) and set it as the mobile data line; keep your home line on for calls/SMS only.
- Turn on data roaming for the travel eSIM — it’s technically roaming on a partner network.
- On landing, switch off airplane mode. If there’s no signal, select the network manually.
- Don’t delete the eSIM until the trip is over — reinstalling isn’t always possible.
When a local SIM is better
For long stays, if you need a local phone number, or in countries where local prepaid data is very cheap, a local SIM bought at the airport or a carrier store can beat a travel eSIM. Bring your passport — many countries require ID registration.