Guides

Both get your phone online in another country. They bill you in completely different ways, and the gap is usually large enough to be worth five minutes of reading before you fly.

It takes under a minute and you only need Wi-Fi. The one thing worth knowing up front: install before you travel, but do not expect it to connect until you arrive.

Most people either buy far too much or run out on day three. The honest answer depends on one thing: whether you watch video on mobile data.

It is the same thing a SIM card has always been — the chip that proves to a network which account you are — except it is built into the phone and the account is written to it over the internet.

Almost every case comes down to one of five things, and the first two account for most of them. Work down the list in order — it is arranged by how often each turns out to be the culprit, not by how technical it sounds.

A regional pack covers a whole group of destinations with a single profile. Buying per country is usually cheaper per gigabyte. Which wins depends less on how many borders you cross than on how the trip is shaped.

This is the second most common reason a travel eSIM will not work, and the only one that no setting on your side can get around. It is also easy to check before you spend anything.

Roaming is not the only alternative. Plenty of travellers buy a local prepaid SIM on arrival, and for some trips that is still the better call. Here is the actual trade.

Short answer: not once it is installed. It is worth understanding why, because the fix is entirely about which phone you install it on in the first place.

There are two places to look and they measure slightly different things. Knowing which to trust saves a lot of second-guessing halfway through a trip.

Yes, you can. Every SimWay plan allows tethering, so the laptop, the tablet and the person you are travelling with can all use the same connection.

Nothing bad happens if you do nothing at all — a finished profile is inert. But two minutes of tidying avoids a surprise on your next bill and a confusing settings screen next time you travel.

It does not mean unlimited fast data — almost nowhere does. It means the connection never stops. Understanding the difference is the whole decision.