When we talk about phones, we all know the famous SIM card: the small chip you need to insert for your phone to work. But in recent years, a new technology has emerged: the eSIM. So, is it just a fad or a real revolution? Let's end the suspense and look at the fundamental differences. SIM vs. eSIM: Same role, but two ways of doing things. Whether it's the classic SIM or the eSIM, their mission is the same: to identify your phone to your mobile operator. It's thanks to this identification that you can make calls, send messages, and browse the internet. The main difference isn't in the function, but in the form. 1. The classic SIM card. The SIM (for Subscriber Identity Module) is the physical card you've always used. What is it? A small plastic card with a chip, which