Greece
eSIM
Greece's most reliable travel eSIM. Instant 5G on Cosmote and Vodafone. Works across the Cyclades, Dodecanese, and Ionian islands.
Specs
Greece eSIM Configuration
Choose your package
Instant delivery
1GB
3GB
5GB
10GB
20GB
Unlimited
2GB/Day
Unlimited
5GB/Day
Unlimited
3GB/Day
Ovosim vs. Other Options
Why smart travelers switch to Ovosim for Greece.
| Feature | OVOSIM | Airalo | Your Carrier Roaming |
|---|---|---|---|
| Cost (Standard Plan) | From €6.99 | €8.99 | $10/day+ |
| Network Speed | 5G / 4G+ Priority | Throttled | Varies |
| Setup | Instant QR | Manual | Automatic |
Last updated:
How to install your eSIM
Ready in 3 simple steps.
Scan QR Code
Go to Settings > Cellular > Add eSIM and scan the QR code from our website
Label Your Line
Name it 'Travel Data'. Set it to 'Secondary' so your main number still works.
Activate Data
When you land, turn on 'Data Roaming' for the eSIM line only.
About Mobile Internet in Greece
Island Hopping: The Coverage Reality
Greece has over 6,000 islands, of which around 200 are inhabited. Cosmote (T-Mobile subsidiary) has the most extensive island coverage of any Greek carrier, with 4G/5G on all major tourist islands including Santorini, Mykonos, Crete, Rhodes, Corfu, and Zakynthos. Smaller, less-visited islands like Ikaria or Kastellorizo may have 3G only. Ovosim prioritises Cosmote for island coverage, with Vodafone as a fallback.
Navigating Athens' Plaka District
The Plaka neighbourhood beneath the Acropolis is a maze of narrow pedestrian streets that confuses even frequent visitors. Google Maps is essential. Cosmote has strong 5G signal throughout central Athens, including inside the Acropolis Museum and around the base of the Parthenon. On the Acropolis rock itself, signal can be variable due to stone interference and tourist density.
Santorini Caldera: Network Congestion
Santorini receives approximately 2 million tourists annually on an island of 15,000 residents. During peak summer (July–August), the Oia and Fira clifftop villages are saturated with tourists uploading sunset photos simultaneously. Cosmote invests in temporary capacity during peak season, but expect slower speeds during the famous Oia sunset hour (around 20:00–21:00 in summer).
Driving in Greece
Renting a car is essential for exploring the Peloponnese, inland Crete, and large islands like Lesbos. Vodafone and Cosmote maintain 4G coverage on the E75 (Athens–Thessaloniki) and all major regional highways. Mountain villages in the Peloponnese interior may have 3G only. Always download offline maps for any inland driving route.
Why use Ovosim for Greece?
Instant Delivery
Scan the QR code and connect immediately.
Hotspot Allowed
Share data with your laptop.
Keep WhatsApp
Keep your original number for calls.
FAQ: eSIM for Greece
What is the best eSIM for Greece?
OVOSIM offers the best value eSIM for Greece starting at €6.99. It connects to Vodafone for 5G speed.
How much does an eSIM for Greece cost?
Plans start from €6.99 for 1GB. There are no hidden fees or roaming charges.
Does this eSIM work in Greece airports?
Yes, the eSIM activates instantly upon arrival. You will have 5G data immediately.
Which network does this Greece eSIM use?
Ovosim connects to Cosmote (a T-Mobile subsidiary) and Vodafone Greece. Cosmote has the best island coverage in the Greek archipelago, making it the top choice for island hopping trips.
Does it work on Santorini, Mykonos, and Crete?
Yes. All three have excellent 4G/5G Cosmote and Vodafone coverage. Smaller uninhabited or lightly inhabited islands may have 3G only.
Will I lose signal on the ferry between islands?
Yes, briefly. Signal drops about 15km offshore and returns as you approach the next island. This is normal for all carriers. Download offline Google Maps for each island before boarding your ferry.
Does it cover the Greek islands near Turkey (Rhodes, Kos)?
Yes. Rhodes, Kos, Samos, and the Dodecanese islands are Greek territory and are fully covered by Cosmote and Vodafone. Note: if your phone accidentally connects to a Turkish tower near the coastline, you may incur roaming charges — ensure manual network selection to Cosmote if this occurs.
Is it cheaper than buying at Athens airport?
Yes. ATH airport tourist SIMs start at €25 and require passport registration. Ovosim starts at €4.99 with no ID required.
Traveling Nearby?
Don't lose connection when crossing the border. One click to see plans for neighbors:
