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What Is an eSIM and How Does It Work for Travel?

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An eSIM is a digital SIM that is built into some phones. Instead of inserting a plastic card, you add a mobile data plan by scanning a QR code or using an app.

Why travelers use eSIMs

• You can set up a data plan before you leave home
• No need to swap SIM cards or find a store after landing
• You can often keep your home number active at the same time
• It can help you avoid surprise roaming charges, depending on your home plan

Before you buy

1. Check that your phone supports eSIM and is unlocked
2. Check that the plan covers the countries and the data amount you need
3. Read how long the plan lasts and when the clock starts
4. Check whether the plan includes phone calls or only data

Good to know

• Some eSIM plans are data only, so messaging apps may be needed for calls
• Keep a copy of your setup instructions and QR code before you travel
• If you are unsure whether your phone is compatible, check your device settings or ask your carrier