How to Use Dual SIM or eSIM While Travelling

Traveling abroad? Your regular phone plan might end up costing you a lot in roaming fees. A simple way to save money and stay connected is by using Dual SIM or eSIM. This lets you add a local SIM (or digital SIM) for affordable data and calls—while still keeping your main number active.

What is Dual SIM and eSIM?

Dual SIM means your phone can use two SIM cards at once – your regular SIM and a second one (either physical or eSIM).
eSIM is a digital SIM already built into your phone. Instead of inserting a physical SIM card, you just download a plan.

Using Dual SIM or eSIM is super helpful when you’re travelling:

You can keep your home number active for calls and texts.
Use a local SIM/eSIM for cheap data and local calls.

How to Set Up Dual SIM or eSIM on iPhone

Using a Physical SIM + eSIM:

Insert your home SIM card into the SIM tray (if not already there).
Go to Settings > Mobile (or Mobile Data).
Tap Add Mobile Plan.
Scan the QR code provided by your eSIM provider (or enter the details manually).
Rename your plans — for example, “Home” and “Travel” — so you won’t get confused later.
Choose which line to use for data, calls, and messages.

📝 Tip: You can rename SIMs in Settings > Mobile > [Tap your SIM] > Mobile Plan Label.

How to Set Up Dual SIM or eSIM on Android

Using a Physical SIM + eSIM:

Insert your main SIM into the SIM tray.
Open Settings > Network & Internet > SIMs (menu names vary by phone).
Tap Add Mobile Plan or +.
Scan the QR code from your eSIM provider or enter activation info.
Change the SIM names — for example, name one “Home” and the other “Travel” — to avoid confusion.
Choose which SIM to use for calls, texts, and mobile data.