what is e sim in iphone

The eSIM, or embedded SIM, is a digital SIM card that allows you to activate a cellular plan from your carrier without using a physical SIM card. It is an industry-standard digital SIM that is programmable remotely via software and is built into newer smartphones, such as the iPhone XS, iPhone XS Max, iPhone XR, and later models. With eSIM, you can install multiple cellular plans on your iPhone and use two phone numbers simultaneously. To set up an eSIM on an iPhone, you need an eSIM-compatible iPhone, a wireless carrier or worldwide service provider that supports eSIM, and a Wi-Fi network. The setup process involves converting a physical SIM to an eSIM, which can be done through the iPhone's settings or by scanning a QR code provided by your carrier. Once activated, the eSIM allows you to easily switch between different cellular plans and carriers without needing to physically swap SIM cards. It's important to note that not all carriers support eSIM, so it's essential to check with your carrier for compatibility. The eSIM is particularly beneficial for travelers, as it allows for easy addition of international plans without the need to purchase a physical SIM card when traveling to another country