An eSim card often referred to as an embedded SIM, is a digital SIM card that is integrated into the hardware of a device as opposed to existing as a distinct physical card. This indicates that you can download a profile over the air and activate it on your smartphone rather than physically inserting a SIM card into it.
The ability to have several profiles on one device makes it simpler to switch between different providers or plans without having to physically swap out SIM cards is one of the benefits that eSIMs have over regular SIM cards. Additionally, eSIMs are frequently more secure because they can be remotely controlled and updated by the carrier or device maker and are not vulnerable to physical theft or manipulation.

I love this,but i like you to answer this few question for me:
-does this esim exist in nigeria here among our telecom providers
-do i need a welcome if i want to swap my phone or incase of missing phone
-how do i recharge this sim
-can i change my existing sim card to the status of esim or i need to make a new purchase