A travel eSIM is mainly for data
The vast majority of travel eSIMs are data-only plans: no local number, so no regular calls or texts. For most people that's not a problem: messaging apps (WhatsApp, FaceTime, Messenger, Signal and others) handle voice and video calls over data, abroad like anywhere else. Some providers offer plans that include a number, but they're less common: the details are in their plan listings.
Keeping your usual number reachable
Your main SIM can stay active alongside the eSIM. You'll keep receiving calls and texts on your number, including bank verification codes. What those calls and texts cost abroad depends on your plan: check with your carrier before you leave. Above all, keep data roaming off on that line.
Settings that prevent nasty surprises
- Set the eSIM as your default line for data.
- Keep your usual line as the default for calls if you want to stay reachable on your number.
- Consider forwarding calls to voicemail if your carrier charges for incoming calls abroad.
- If your carrier supports Wi-Fi calling abroad, check the terms: they vary from plan to plan.
One thing to watch
In some countries, calls made through apps can be restricted or degraded. Check the situation for your destination before you go, and keep a fallback (texts from your usual line, Wi-Fi calling) if being able to call is essential.
What about texts?
Without a local number, a data eSIM can't send or receive SMS. Verification codes (bank, messaging, online services) keep arriving on your usual number, as long as your main SIM stays active. Where a service allows it, switching to app-based verification before you leave means you won't depend on SMS during the trip.
Set up your eSIM in 4 steps
- Make sure your phone is eSIM-compatible and unlocked.
- Buy the plan, then scan the QR code you receive (or install through the provider's app), on Wi-Fi.
- When you arrive, turn on the eSIM line for data, and turn on roaming for that line only.
- Keep your main SIM for calls and texts, with data roaming turned off.
Your phone must be eSIM-compatible and unlocked.
Frequently asked questions
Can I make calls with a travel eSIM?
Most travel eSIMs are data-only plans, with no local number. Calls go through messaging apps. Your usual number stays reachable if your main SIM stays active.
Do app-based calls work everywhere?
In most countries, yes. Some countries do restrict calls made through apps, so check the situation at your destination before you go.
Is my phone eSIM-compatible?
Most iPhones from the XS onward, recent Samsung Galaxy phones and Google Pixels from the Pixel 3 onward are compatible. The phone also has to be unlocked. On iPhone: Settings > General > About, look for the "EID" line.
When should I install my eSIM?
Install it before you leave, on Wi-Fi, but turn on the data line when you arrive. Most plans only start at the first connection to the local network.
Do I keep my regular phone number?
Yes. Your main SIM can stay active for calls and texts; the travel eSIM only handles data. Remember to turn off data roaming on your main line.
Where can I compare eSIMs by destination?
Each destination has its own comparison, with plans from the providers we track and prices checked on their official websites.