How does an eSIM work for international travel?

An eSIM is a digital SIM card built into your phone that lets you download mobile plans without inserting a physical card. For international travel, you buy a destination or regional eSIM plan from a provider like EasyAlo, receive a QR code or activation code by email, and install it on your compatible, carrier-unlocked phone while you’re still on Wi‑Fi at home. The plan’s validity usually starts only when you first connect to a supported network in your destination, so you don’t lose days before you land. Once active, you can use data for maps, messaging, and apps just like a local, while keeping your home SIM in the phone (with data roaming turned off) so you can still receive important SMS or calls on your regular number without paying high roaming fees.