eSIM

An eSIM (embedded SIM) is a digital SIM card that is built directly into a device, allowing users to activate a mobile network without needing a physical SIM card. It enables seamless switching between carriers and mobile plans through software settings, making it convenient for frequent travelers and those looking for flexibility in their network choices. eSIMs are commonly found in smartphones, smartwatches, tablets, and other IoT devices, supporting multiple profiles for different carriers. This technology also helps save space in devices, contributing to sleeker designs and improved water resistance.