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An eSIM is a digitally embedded SIM card that contains your Tello plan and phone number. Unlike a physical SIM card that you insert into your phone, you can instantly install an eSIM onto your device. After ordering, you can easily activate the eSIM using an eSIM compatible phone and a Wi-Fi network. It's simple and convenient!

Both physical SIM cards and eSIMs connect your phone to a network and provide access to your plan and services. If you have an eSIM compatible device, you can start using your Tello plan immediately without waiting for a physical SIM card to arrive.