A device incorporates an eSIM (embedded SIM), a sort of programmable SIM card. In place of an integrated circuit that is stored on a detachable universal integrated circuit card (UICC), which is often made of PVC, an eSIM consists of software put onto an eUICC chip that is permanently attached to a device.
When an eUICC is configured with an eSIM carrier profile, it performs just like a physical SIM, complete with a unique ICCID and network authentication key generated by the carrier.
The eSIM standard has begun to replace physical SIM in a number of industries, including cellular telephony since it was first introduced in 2016.
How do I remove eSIM from my iPhone?
Your eSIM might need to be deleted if:
Your other iPhone now has the eSIM’s phone number.
You intend to exchange, sell, or donate your gadget.
As a troubleshooting measure, don’t erase your eSIM unless your carrier specifically instructs you to.
In order to obtain a new one if you wipe your eSIM, get in touch with your carrier. Next, configure your new eSIM.
How to delete your eSIM:
Access Settings.
Select Cellular or Mobile Data by tapping.
Click and hold the plan you want to delete.
Select eSIM Delete.