An eSIM, or embedded SIM, is a small, programmable chip that is embedded in a mobile device, such as a smartphone or tablet, 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 cellular plan with a carrier without needing to purchase a physical SIM card or visit a store. Instead, the eSIM can be programmed with the user's cellular/mobile plan details through a QR code, a mobile app, or a carrier's 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 cellular plans and carriers 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.