How to Choose the Right eSIM for Europe Data vs Voice Guide

How to Choose the Right eSIM for Europe (Data vs Voice)

Choosing the right eSIM for Europe can save you money, keep you connected, and make your trip far easier. The main decision is whether you need data only or data + voice, and for most travellers, a data‑only eSIM is more than enough. This guide breaks down the differences, explains when voice is actually useful, and shows you the best setup for Australian travellers heading to Europe.

Data‑Only eSIMs (Best for Most Travellers)

It comes down to whether you need data only or data/voice. We were stuck only a couple of times on our last trip where voice would have been real handy, to ring the stupid hire car company and a restaurant to make a booking, other than that we got by.

Choose a data‑only eSIM if you:

use WhatsApp, Messenger, FaceTime, or email to communicate
don’t need to receive SMS codes from your Australian number
want the cheapest and simplest option
only need internet for maps, bookings, banking, and social apps

Why data‑only is usually enough:

All modern communication apps work perfectly over data
You can still call and video‑call anyone through apps
It’s cheaper and easier to set up
No need to change your phone number

See What Travel documents you will need for Europe

When You Should Choose a Data + Voice eSIM

Choose a data + voice eSIM if you:

need to make phone calls (e.g., to hotels, car rentals, local services)
need to receive calls on a European number
need to receive SMS verification codes from banks or services
prefer having a local number for reservations
If you can speak the countries language

Why you might need voice:

Some older businesses still prefer phone calls
Certain car rental companies call you directly
Some banks send SMS codes (though many now use app authentication)

Downsides:

More expensive
Not always necessary
Requires managing a second phone number

Perfect for:
Travellers who want a local number or who rely on SMS verification.

How we Planned Our European Trip

The Best Setup for Most Travellers

The ideal setup for most people is:

Data‑only eSIM for Europe

Use it for maps, bookings, WhatsApp, email, banking, and everything else.

Keep your Australian SIM active on “SMS only”

This lets you:

receive bank codes
keep your number reachable
avoid roaming charges by turning off data roaming

This combination gives you the best of both worlds without paying for unnecessary voice minutes.

Our Full European Travel Costs And Budgeting Tips

FAQ: Choosing the Right eSIM for Europe

Do I need a data‑only eSIM or a data + voice eSIM for Europe?

Most travellers only need a data‑only eSIM. It covers maps, bookings, WhatsApp, email, banking, and social apps. A data + voice eSIM is only necessary if you need to make traditional phone calls or receive SMS codes on a European number.

Is a data‑only eSIM enough for travelling in Europe?

Yes. For 95% of travellers, data‑only is more than enough. All communication apps work over data, and you can still call or video‑call anyone using WhatsApp, Messenger, or FaceTime.

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When should I choose a data + voice eSIM?

Choose a data + voice eSIM if you need to call hotels, car‑rental companies, or local services, or if you need to receive SMS verification codes on a European number. It’s also helpful if you speak the local language and prefer traditional calls.

What are the downsides of a data + voice eSIM?

Data + voice plans cost more, aren’t always necessary, and require managing a second phone number. For most travellers, the extra cost doesn’t provide much benefit.

Can I still receive SMS codes from Australia while using an eSIM?

Yes. Keep your Australian SIM active on SMS‑only and turn off data roaming. This lets you receive bank codes and important messages without paying roaming fees.

What is the best eSIM setup for travelling through Europe?

The best setup for most travellers is:

a data‑only eSIM for internet access
your Australian SIM set to SMS‑only for verification codes

This gives you full connectivity without paying for unnecessary voice minutes.

Can I make calls using a data‑only eSIM?

Yes. You can make voice and video calls through apps like WhatsApp, Messenger, and FaceTime. These work perfectly over mobile data and Wi‑Fi.

Do I need a local European phone number?

Most travellers don’t. A local number is only useful if you need to receive calls from hotels, restaurants, or car‑rental companies. Otherwise, messaging apps are enough.

Will my eSIM work across multiple European countries?

Yes. Most travel eSIMs cover multiple European countries under one plan, so you don’t need to switch SIMs as you cross borders

Is it easy to install and activate an eSIM?

Yes. Most providers give you a QR code or in‑app activation. Setup usually takes just a few minutes, and you can install the eSIM before you leave Australia.