What is an e-Sim ?
International travel e-SIM’s are virtual SIM’s that allow travelers to use mobile data and make calls in multiple countries without needing to switch physical SIM cards. An e-SIM (embedded SIM) is a small chip embedded within your mobile phone that can be programmed with various carrier profiles, enabling it to connect to different mobile networks. You do not even need to check if your phone works in a particular country (restrictions on GSM phones).
How do I check compatibility of my phone
Dial *#06# and press call
If your device is e-SIM-compatible, you'll be able to view your EID number. If not, then apologies, your phone is not eSim compatible.