What is the function of an eSIM?

The function of an eSIM is to eliminate the need for a physical SIM card. An eSIM, or embedded SIM, is a digital SIM that is built into devices, allowing them to connect to mobile networks without the need for a traditional, removable SIM card. This technology offers numerous advantages, such as simplifying the process of switching carriers and managing multiple profiles on a single device. Users can activate a mobile plan through software rather than having to physically insert or swap out SIM cards, which enhances convenience, especially for international travel or for users who frequently change mobile networks.

In contrast, the other options are not functions of an eSIM. For instance, while battery performance can be affected by various factors in a device, eSIM technology does not directly enhance battery life. Similarly, an eSIM does not compile apps or provide Bluetooth connectivity; its primary role is related to mobile network connectivity through cellular services.