What is an eSIM? How does it work?

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An eSIM stands for Embedded SIM. It’s a small chip built right into your phone. It used to authenticate your identity with your carrier. A SIM stands for “Subscriber Identity Module”. A SIM basically contains the information about the subscriber that authenticates the subscriber’s identity to a carrier. It mainly created for replacing the existing normal SIM cards. Normal SIM takes too much space in mobile. That’s why the mobile manufacturers reducing the SIM card size. Mobile Manufacturers can attach extra sensor or any other chips in the phone when they reduce the SIM space.

How to use eSIM?

An eSIM is attached with the mobile as default. We don’t need to insert any SIM manually. We need to choose the Network and the number for that. Instead of having to order a new SIM and wait for a while to get it, we can switch to a new carrier straight from our phone. eSIM supports multiple accounts. So, the dual-SIM users can switch accounts from one to another is easy.

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Google Pixel 2 was the first mobile to introduces the eSIM. Apple Series 3 and Series 4 Watches, iPads, Samsung Gear Watches also using this chip. iPhone XS, iPhone XS Max, and iPhone XR support dual SIM. The one is normal SIM, and the other is eSIM.

Now the apple and the Google Pixel mobiles only use this SIM. But in future, this SIM expected to be used in all mobiles.

 

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