I have a plan to transit several other countries. Will I be able to use data in several countries with a single eSIM plan?

It depends on the eSIM plan. If you choose an eSIM plan that covers several countries and visit countries within coverage, you will be able to use data with one eSIM plan. You can also buy several individual country plans such as eSIM Japan, eSIM Thailand and use the correct eSIM along with your trip schedule. Please check details via [email protected].