How to set up an eSIM on your Apple Watch?

What smartwatches are compatible with eSIM? 

What is an SM-DP+ address? And how to use it to activate an eSIM?

How many eSIMs can you have on your phone ?

How to convert physical SIM to eSIM on different devices ?

Which carriers support eSIM? Complete list.

How to delete an eSIM from your phone?

Can you use an eSIM on a locked phone?

How to reset your phone without erasing the eSIM?