eSIM technology has made mobile connectivity easier than ever — no more plastic SIM cards, no more queues in mobile stores, no more expensive roaming packages. But even though eSIMs are simple in theory, activation doesn’t always go smoothly.

One of the most exciting innovations of recent years is eSIM technology. If you are a frequent traveler, a freelancer working abroad, or simply someone with a modern smartphone, understanding what eSIM is and how it works can make your life much easier.