Three ways to get internet outside the EU, and who each one suits.
Outside the EU, the European “roam like at home” rule does not apply. There are three ways to get internet abroad.
It is the most convenient, as you set nothing up. Outside the EU, though, it is often much more expensive than the alternatives, and prices are split into zones and data bundles. Check your carrier’s price list for the country before you go. On the home page you can run a comparison.
It is usually cheap, but you have to find one, it is often registered to your passport, and buying at the airport can take a while. You also move away from your main SIM, or you need two SIM slots.
You buy online, install at home and switch on after landing. It is fast and predictable, with the price fixed in advance. The downside is that you need a phone with eSIM support and that it usually does not include calls.