Greece eSIM providers at a glance

ProviderDataDurationPrice$/GBHotspot
Airalo Top pick1 – 20 GB7 – 30 days$4 – $25$1.25 – $4.00YesDetails →
Yesim Unlimited10 – 30 GB / Unl.7 – 30 days$16.80 – $56$1.12 – $1.68YesDetails →
Saily1 – 20 GB7 – 30 days$3.99 – $24$1.20 – $3.99YesDetails →
DrimsimPay-as-you-goNo expiry~$10.80/GB$10.80YesDetails →

Prices checked March 2026. Actual pricing may vary.

Detailed provider reviews for Greece

✈️ Airalo

Recommended

Airalo connects to Cosmote (Greece's largest network) for reliable coverage across the mainland and islands. Santorini, Mykonos, Crete, Rhodes, and Corfu all have good 4G. Also available via Airalo's Europe regional plan for multi-country trips.

1 GB
$4.00 · 7 days
3 GB
$8.00 · 15 days
5 GB
$12.00 · 30 days
10 GB
$18.00 · 30 days
20 GB
$25.00 · 30 days

Pros

  • Cosmote network — best island coverage
  • Works on all major tourist islands
  • Europe regional plan available
  • Reliable and well-tested

Cons

  • Not cheapest per GB
  • Small islands may have weaker signal
  • Unlimited plans have 3 GB/day speed cap
  • Support can be slow
Visit Airalo →

🇨🇭 Yesim

Unlimited + VPN

Yesim offers Greece data with unlimited plans from $22.80/7 days and prepaid starting at 10 GB/$16.80. Useful for island-hopping trips where you'll burn through data on ferries and in remote villages.

Unlimited
$22.80 · 7 days
10 GB
$16.80 · 30 days
20 GB
$25.20 · 30 days
30 GB
$33.60 · 30 days

Pros

  • Unlimited daily plans available
  • Good for longer stays
  • Swiss privacy
  • Clean app

Cons

  • Less known brand
  • Fewer reviews
  • Network transparency
  • Possible throttling
Visit Yesim →

🔒 Saily

Privacy-focused

Saily offers Greece plans with NordVPN privacy features. Mid-range pricing, clean app.

1 GB
$3.99 · 7 days
3 GB
$12.99 · 30 days
5 GB
$18.99 · 30 days
20 GB
$23.99 · 30 days

Pros

  • Privacy features
  • Good pricing
  • Clean interface
  • Ad blocker

Cons

  • Newer provider
  • No unlimited
  • Activation window
  • Rural coverage varies
Visit Saily →

💳 Drimsim

Pay-as-you-go

Drimsim charges ~$10.80/GB in Greece. Expensive compared to prepaid alternatives. Consider it only as a backup for emergencies or if you're combining Greece with other European countries on one trip.

Pay-as-you-go
~$10.80/GB in Greece
No expiry
Balance never expires

Pros

  • Flexible usage
  • 190 countries
  • No waste
  • No expiry

Cons

  • Higher per-GB
  • No bulk deals
  • Less intuitive
  • Not cheapest
Visit Drimsim →

How much data do you need in Greece?

Greece has good Wi-Fi in hotels and restaurants, especially on popular islands. But ferry rides, beach days, and exploring villages will rely on mobile data. Budget 3–5 GB for a week of island hopping.

Quick guide: Athens weekend → 1–3 GB. Island hopping week → 5–10 GB. Extended Greek summer → unlimited or 20+ GB.

Network coverage in Greece

Cosmote (OTE Group) is Greece's largest network with the best island coverage. Vodafone Greece is the second option. All major tourist islands have reliable 4G. Very small, remote islands may have 3G only.

Tips for using an eSIM in Greece

Install before you fly. Activate at Athens International or Heraklion airport. Immediate data for booking a taxi or finding your hotel.

Ferry navigation. Download offline maps for your island destinations. Ferries have patchy cellular and often no Wi-Fi.

Island coverage check. Santorini, Mykonos, Crete, Rhodes, Corfu — all have strong 4G. Smaller Cyclades islands like Folegandros or Amorgos may have weaker coverage in remote areas.

Practical tips for staying connected in Greece

Mainland Greece and the major islands (Crete, Santorini, Mykonos, Rhodes, Corfu) have solid 4G coverage. Smaller Cycladic islands, the Dodecanese, and remote parts of the Peloponnese may have weaker signal. Ferry routes between islands generally have coverage within sight of land but drop in open water.

Island-hopping tip: Download offline maps for all islands on your itinerary before leaving Athens. Greek island infrastructure varies — Santorini has strong coverage everywhere, while smaller islands like Folegandros or Amorgos can have dead zones in remote beaches and hiking trails.

How much data do you need in Greece?

For a typical 7-14 day Greek holiday (Athens + 2-3 islands), budget 3-5 GB. Island destinations rely heavily on Google Maps for finding beaches, tavernas, and hiking paths. If you're renting a car or ATV on the islands, navigation data usage adds up.

Hotels and restaurants in tourist areas usually offer free Wi-Fi. Ferries increasingly have onboard Wi-Fi (often slow, but functional for messaging). Your eSIM serves as the reliable backup when taverna Wi-Fi inevitably fails.

Greece as part of a European trip

If Greece is one stop on a broader European itinerary, consider a regional Europe plan from Airalo instead of a Greece-specific plan. Regional plans cover 30+ European countries on a single eSIM — useful if you're combining Greece with Italy, Turkey, or the Balkans. Yesim's Europe unlimited plans also cover Greece.

Frequently asked questions

Airalo on Cosmote's network is the most reliable, especially for island coverage. Yesim for unlimited data and cheapest per GB. Saily for privacy features.
Yes. Major islands (Santorini, Mykonos, Crete, Rhodes, Corfu) have strong 4G. Smaller islands may have weaker signal in remote areas.
5–10 GB for a week of island hopping. You'll use data for ferry schedules, maps, and uploading photos.
If you're only visiting Greece, a local plan is cheaper. If combining with Italy, Turkey, or other European countries, a regional Europe plan is more convenient.
Coverage is available near ports and along some routes but drops mid-sea. Download anything important before boarding.
Yes, from Cosmote or Vodafone shops in Athens and tourist areas. Costs €10–20 for 10+ GB. But eSIM avoids the store visit and passport process.
Airalo, Yesim, Saily, and Drimsim: all support full hotspot sharing.