What is an eSIM?
An embedded SIM (Subscriber Identity Module) is simply known as eSIM or embedded Universal Integrated Circuit Card (eUICC). As the name mentioned, eSIM is a non-replaceable embedded chip in a smart phone.
Non Removable SIM Card
An e SIM is non-removable and attached with other internal components of a smart phone or smart watch. As it is not a physical SIM card, it is not possible to remove the same from phone or the device.
Mobile Network and eSIM
E SIM needs to be supported by the network or carrier who providing the e sim compatible network and enabled by them. An e SIM is basically a small chip inside your phone and works in a similar way to the NFC chip inside your phone.
Benefits of an eSIM
How it is easy to Change the SIM data?
The information or the data on an e SIM is re writable. Which means the user can decide to change operator with a simple phone call. They’re really easy to add to a data plan – connecting devices with e SIMs to a mobile account can be done in minutes.
Size of the e SIM
One of the advantages of an e SIM is that it’s absolutely tiny, just a small fraction the size of a Nano SIM. And they’re only the size of a nail. This is what makes it so well-suited to ultra-compact gadgets like watches, which simply don’t have the room for a normal SIM.
Easy to Change the Service Provider
With such an embedded standard, the idea is that you can switch to a new operator without having to insert a specific SIM card. It’s all done through software.
Share your number with multiple device
One of the most interesting aspects of the Watch’s e SIM is that it’ll share your iPhone’s number. You can think of them as part of the same connection.
 is simply known as eSIM or embedded Universal Integrated Circuit Card. eSIM is a non-replaceable embedded chip.){kind=link}