eSIM is a digital SIM that is embedded inside your phone. An eSIM allows you to activate your plan and get connected to the network without using a physical SIM card. With this technology, you can switch between your personal and business number without needing to physically swap SIM cards in your device.
eSIM is currently supported by iPhone XS, iPhone XS Max, iPhone XR and Google Pixel 3. Only iPhones with an update to IOS 12.1 will support the eSIM service.