eSIM for Greece: online from Athens to the islands
An eSIM for Greece keeps you connected from the Acropolis in Athens to the white villages of Santorini and the beaches of Crete. Greece is part of the European Union, so roaming is in principle free within your bundle. Even so, an eSIM can work out cheaper, especially if you use a lot of data or have a small plan. This guide explains everything with tables, tips and a FAQ.
Do I need an eSIM in Greece?
Not always, but it is often handy. Greece is in the EU, so you can roam for free within the limit of your home plan. If you have a generous plan and travel for a short time, roaming is enough. But on the tourist islands the Wi-Fi at your accommodation is sometimes slow, and your bundle runs out faster than you would expect. An eSIM then gives you a generous, fixed amount of data at a price you know in advance.
Rule of thumb: big plan and short trip, then roaming is enough. Small plan, long trip or a need for certainty, then an eSIM is cheaper and more relaxing.
More on this in eSIM or roaming.
How much data do you need in Greece?
| Type of traveller | Usage | Recommended data |
|---|---|---|
| Light (weekend) | Maps, WhatsApp, occasional social media | 1 to 3 GB |
| Average (week) | Social media, sharing photos, navigation | 5 GB |
| Heavy (1 to 2 weeks) | Lots of navigation, videos, translation | 10 GB |
| Long trip or sharing | Tethering, working, family | 20 GB or more |
For a week on the islands with maps, photos and social media, 5 GB is usually enough. Our guide how much data do you need when travelling helps you choose.
eSIM or roaming: which is cheaper in Greece?
Because Greece is in the EU, roaming here is less expensive than outside Europe. Even so, an eSIM can pay off:
| roaming with your home carrier (EU) | eSIM for Greece | |
|---|---|---|
| Cost | Free within your bundle, then expensive | Fixed price in advance, from 1.99 euro |
| Data volume | Limited by your plan | You choose yourself |
| Risk of surprises | When you exceed your limit | None |
| Your home number | Stays active | Stays active (dual SIM) |
For a short trip with a generous bundle, roaming wins on convenience. For a longer trip or a small plan, the eSIM wins on price.
What is the coverage like in Greece?
| Area | Coverage |
|---|---|
| Athens and Thessaloniki | Excellent, 4G and 5G |
| Large islands (Crete, Rhodes, Corfu) | Very good |
| Cyclades (Santorini, Mykonos) | Good in the villages |
| Small islands and mountains | Variable |
In the cities and on the large islands you are well covered. If you travel between islands by ferry, download your tickets and maps offline beforehand, because the network drops out at sea.
On the ferry: download your bookings and maps before you board. As you approach the next island, your eSIM reconnects automatically.
Installing an eSIM for Greece
Install at home over Wi-Fi before you leave. After your purchase you receive a QR code and activation link by email.
On iPhone
- Open Settings, go to Mobile Data and choose Add eSIM.
- Scan the QR code, or tap the activation link in the email.
- On arrival, turn on data roaming for the eSIM line.
Full instructions: installing an eSIM on iPhone.
On Android
Open the mobile network settings, choose to add a SIM card and scan the QR code. Details per brand are in installing an eSIM on Android.
Installing is not the same as activating. Validity usually only starts on your first connection in Greece, so you can safely install in advance. Also check that your device is compatible via phones with eSIM.
Keeping your home number
Thanks to dual SIM, your home number stays reachable for calls and bank codes, while the eSIM handles your data. Set the eSIM as your default data line and turn off the mobile data of your home SIM. More on this in dual SIM with eSIM.
Tips to save data in Greece
- Download offline maps and your route before you leave.
- Use an offline translation app.
- Set cloud backups and updates to Wi-Fi only.
- Turn off autoplay video in apps.
- Do large downloads over your hotel Wi-Fi.
Frequently asked questions about an eSIM in Greece
### Does my eSIM work on all Greek islands?
On the large and tourist islands it does. On small, remote islands the network can be weaker. Download your maps offline there.
When does the validity period start?
With most eSIMs only on your first connection to the local network, not at installation.
What if I run out of data?
With many eSIMs you can easily top up without installing a new one.
Conclusion
Greece is in the EU, so roaming may be enough, but if you use a lot of data or have a small plan, an eSIM is cheaper and more relaxing. Count on 5 GB for a week on the islands. Install at home over Wi-Fi and activate on arrival. At esimzu you pay easily by card, receive your eSIM straight away by email and benefit from a lowest-price guarantee.