An eSIM is a SIM embedded in your device, so you never have to deal with physical SIMs again! They're a new technology, so not all phone support them, but this article will tell you how to check.
Existing customers: Physical SIMs are now available, and you can get one for free! Just fill out the order form here, and a fulfillment agent will process your order through USPS.
Potential customers: You may need to create a new account and select eSIM activation first, but please do not install the eSIM. We will proceed with physical SIM activation once you receive your order.
How to Check If Your Phone Supports eSIM
For iPhone:
Open Settings and tap on Cellular or Mobile Data.
Look for Add eSIM—that means your iPhone supports eSIM!
For Samsung Device:
Head to Settings and find Network & Internet or Connections.
Search for SIM manager.
Then look for Add eSIM—that means your iPhone supports eSIM!
For All devices:
DIAL *#06# and press the call button.
If your device is eSIM-compatible, you should be able to view your device's eSIM unique identification number (EID).