When to buy and install a travel eSIM before your trip
Buy a travel eSIM a few days to a week before departure, install it on home Wi-Fi before you fly, and switch data to it after landing. Here is how to time each step.
Five guides for the questions that come up between booking a flight and landing: when to buy, what unlimited really means, how to cover several countries, how to keep your number and what to do if an eSIM will not work.
Each guide uses the same fact base as our provider ranking: official plan pages, terms and store listings. For the full buying process, start with the buying guide.
Trip planning
Plans explained
Are unlimited data eSIMs really unlimited? Fair use and hotspot caps explained
Unlimited travel eSIMs rarely stop working, but most slow down after a threshold and some limit hotspot sharing. Here is how to read the rules before you buy.
Routes
One eSIM for several countries: regional vs global vs local plans
A regional eSIM covers most multi-country trips inside one region, a global plan suits routes across continents, and local plans fit long stays in one place.
Phone setup
How to keep your phone number and bank SMS with a travel eSIM
Run your home SIM for calls and bank codes and the travel eSIM for data. The exact iPhone and Pixel settings, and the roaming fees to watch on the home line.
Before you pay
Travel eSIM refunds: when you can get your money back and how to ask
Most eSIM refunds hinge on one question: did the eSIM ever work? Here is what usually qualifies, what does not, and how to file a request that gets answered.