What is an eSIM?

An eSIM (embedded SIM) is a digital SIM card built directly into your smartphone or tablet. Instead of inserting a tiny plastic card, you download a SIM profile digitally via an app or QR code. This means you can switch mobile networks instantly without physically swapping SIMs. All modern iPhones (XS and newer) and most flagship Android phones (Samsung S20+, Pixel 3+) support eSIM.