The concept of the “embedded SIM,” “eSIM” or “Virtual SIM” card for mobile devices has been around for a few years now, but it is still new, since even the terminology is not yet well defined. Apple filed the initial patent for its version, the “Virtual SIM” or “Apple SIM,” back in 2011 and has been building on the design ever since.
The idea behind an eSIM is that it is embedded as a chip within the device hardware rather than being a removable card. This allows users to avoid locking themselves into a plan with a single operator, or to switch operators without having to unlock or buy a new device. The long-term idea is to create an industry standard eSIM, which will bring added convenience, cost-savings, and security to consumers and organizations using mobile devices.
Read more: The coming of the eSIM