An eSIM, or embedded SIM, is a programmable chip that is embedded in a mobile device and serves the same purpose as a traditional SIM card. Unlike a physical SIM card an eSIM does not need to be physically removed or inserted into a device as it is built into the device itself.
With an eSIM users can activate a data bundle without needing to purchase a physical SIM card or visit a store. The eSIM is programmed with the data bundle details through a QR code, a mobile app, or a website. This allows for a more streamlined and convenient process for activating and managing cellular plans.
eSIM technology offers many benefits, including increased flexibility, cost savings, and convenience. For example, users can easily switch between different data bundles on different eSIMs without needing to physically swap out a SIM card. Additionally, eSIM technology enables devices to be smaller and more compact as there is no need for a traditional SIM card slot.