Will my physical SIM card still work?

Yes! 

The Dual SIM technology found in eSIM-compatible smartphones means your usual SIM card will still work as normal if you download a BetterRoaming eSIM. 

You can switch between the two in seconds. This means you can roam with an eSIM and still be able to access your original phone number, WhatsApp messages, and services that require 2-factor authentication. 

Click here for a list of eSIM-compatible devices.