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eSIM: What is it?
An eSIM is a digital SIM that’s built into most modern phones. It works like a physical SIM card, but without having to insert anything into your device. eSIMs offer tons of benefits, such as helping you avoid roaming fees and making it easy to switch between providers.
An eSIM is an embedded subscriber identity module — essentially, a built-in chip in your phone. It does everything a traditional SIM would do, but without having to slot a tiny card into your phone. Additionally, an eSIM allows you to use several carriers and phone numbers at once, which is super convenient.
eSIMs are available on smartphones, tablets, smartwatches, and even some cars! They’re great for quickly switching between phone numbers and grabbing mobile data for travel.
How does an eSIM work?
An eSIM uses preinstalled software on your device to work just like a physical SIM. Once you activate it, you can connect to a cell network, make calls, and use mobile data. Most modern phones will have built-in eSIMs, but check our list of eSIM-compatible phones to see if yours does.
To start using an eSIM, just buy an eSIM plan and complete a quick setup. No need to remove your current SIM card — it can stay where it is, whether you decide to keep using it or not.
