The card’s only purpose is to carry the data that lets you connect to the cellular web link.
Thankfully, the SIM’s days are numbered.
“When Apple introduced micro SIM and nano SIM, everyone followed.

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Now, the US iPhone 14 and 14 Pro do away with a SIM slot altogether.
Outside of the US, eSIM adoption is slower.
I live in Germany, where only a couple of carriers support eSIM activation, according toApple’s list.

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This is probably why non-US iPhones still have a SIM card slot.
One interesting fact is that theUS model still has space for a nanoSIM.
The internal SIM tray section is gone, but the gap is filled with a plastic spacer.
This shows Apple really wants to force carriers' hands here.
eSIM Advantages
For users, eSIMs are great.
Transferring an eSIM to another phone is similarly easyif you’re going from iPhone to iPhone.
“Using eSIMs gives people so much more flexibility.
you could be just about anywhere in the world and add data to your gear instantly.
The other big advantage is that it’s easy to use multiple SIMs.
Brett Jordan / Unsplash
There are some possible disadvantages, however.
One is that eSIMs are not universally supported, but that will surely happen eventually.
And what about anonymity?
An eSIM makes it harder to stay safe.
Regardless, eSIMs are coming, and theres little we can do about it.
And in most cases, its good to see the back of this absurd legacy tech.