Best eSIM for Greece 2026: 14 Providers Tested & Compared

Looking for the best eSIM for Greece? In May 2026 I tested 14 eSIM providers across Greece to find out which ones actually deliver, and which ones to avoid.

After Brexit, EU roaming is no longer guaranteed to be free. Many UK networks charge daily fees or cap your data abroad, so it pays to check your plan before you fly. For travellers without inclusive EU roaming, a travel eSIM is usually the cheapest way to stay connected in Greece.

Two things to watch out for:

• Daily roaming fees can add up. On many plans, a two-week holiday adds £15 to £35 in roaming charges. A 10 GB eSIM starts from around £5.
• The eastern Greek islands hide a costly trap. On Lesvos, Chios, Samos, Kos and Rhodes your phone can silently connect to a Turkish mast. Turkey sits outside the EU, and travellers have been hit with bills in the thousands.

For most British holidaymakers, a travel eSIM is the simplest answer. In this article you'll find my top picks.

Short on time? Use code FYESIM for 10% off my top pick GoMoWorld, the best balance of speed, price and reliability.

Greece eSIM for UK Travellers

After Brexit, UK travellers no longer get automatic free roaming in the EU. Whether you need an eSIM depends on your mobile plan:

• O2 still includes EU roaming as standard on most plans, with a fair use limit of 25 GB per month.
• Three charges £2 per day or offers Go Roam passes (3 days £5, 7 days £12, 14 days £24), with a 12 GB fair use cap. Older plans may differ.
• EE charges £2.72 per day for the Roam Abroad pass. Older plans may differ.
• Vodafone charges £2.75 per day on plans bought after 11 August 2021, unless your plan includes 52 or 84 destinations (then included up to 25 GB). Plans bought before 11 August 2021 include roaming up to 25 GB.

For smaller networks (Tesco Mobile, Smarty, Voxi, giffgaff and others), policies vary widely and are often less generous than the headline major networks. Always check your specific plan before you fly.

If your plan doesn't include EU roaming, a travel eSIM is the smart choice to save money. A two-week holiday on Vodafone or EE costs around £38 in daily roaming fees. A 10 GB travel eSIM starts from around £5 and covers your whole trip without surprises.

Three reasons to get a travel eSIM for Greece:

• You'll likely save money if your plan doesn't include EU roaming. For many travellers without inclusive EU roaming, a travel eSIM works out cheaper than daily fees or roaming passes from your UK provider.
• You're heading to the eastern Greek islands. On Lesvos, Chios, Samos, Kos and Rhodes your phone can accidentally connect to a Turkish mast. Turkey sits outside any EU roaming arrangement, and travellers have faced bills running into the thousands. An eSIM that only works on Greek networks prevents this risk.
• You want to be online the moment you land. Expect long queues at EU border control this summer as the new Entry/Exit System rolls out. I recently arrived at Athens airport on a flight from Istanbul and waited 45 minutes in the passport queue, and I had it easy with an EU passport. For UK passport holders this summer, expect worse. A travel eSIM doesn't get you through the queue any faster, but with one already active you skip the second queue at the airport eSIM kiosk, the ID registration that comes with a local SIM, and the patchy airport WiFi. Just message your driver and go.

Travel eSIMs are available from less than £0.50 and often give you more data for less money than your UK provider's roaming pack. You keep your UK number reachable for calls and texts, and use the eSIM only for data (most modern phones support both at once).

Browse 40+ providers in our Greece eSIM comparison, or read on for my personal review.

*UK provider prices as of May 2026.

How to Choose the Right eSIM for Greece?

Have you decided an eSIM is the right choice for you? Then the best option mostly comes down to what you'll be doing online.

For most travellers, the choice of network in Greece makes little difference. All three Greek networks (Cosmote, Vodafone and Nova) deliver solid 4G and 5G in tourist areas and major cities. The network only really matters if you're heading to remote areas: smaller islands, mountain villages on the mainland, or the less-visited parts of the Peloponnese. Cosmote has the widest coverage in remote areas.

I tested 14 providers and four stood out:

• GoMoWorldfor the best value for money, with the highest speeds in my test
• Ubigifor European plans, with the most stable connection and strong performance if you're also travelling to Turkey or Albania
• Airalofor ease of use, with the best response time in my test and the most user-friendly app
• Orange Travelif you genuinely need unlimited data, with the only bundle without a real fair use cap. Only worthwhile if you know you'll use a lot of data; for most travellers it's a waste of money.

How much data do you actually need? It pays to think about this beforehand. Use our data calculator to estimate what you'll really use on your trip. Want to compare prices? Browse all 40+ providers via our Greece eSIM comparison tool. Or read on for my personal review.

All 14 Providers Tested

All providers were personally tested by me in May 2026 under the same conditions, with an iPhone 16 Pro in Athens.

For speed I used the Ookla speedtest, and for response time meter.net. Most people only look at download speed, but response time matters just as much. A fast download with slow response time still feels sluggish: video calls stutter, web pages take seconds to start loading, and games are unplayable.

GoMoWorld and Ubigi clearly stood out as the winners. Holafly, Pingwe (a European plan) and Eskimo were more limited and not recommended for video calls or remote work. Pingwe's low price can still make it worthwhile in some cases.

You'll notice Ubigi appears twice in the table. Ubigi lets you choose between a local Greek IP or a UK IP (your home country). With a UK IP, websites and apps behave as if you're back home: streaming services like BBC iPlayer, ITVX and Sky still work, your bank doesn't flag suspicious logins, and shopping sites show UK prices in pounds. A local Greek IP can be faster for browsing Greek websites, but breaks anything that's geo-locked to the UK.

For Pingwe and GoMoWorld I tested a European plan, which may differ from the local offering. Routing (which country the data passes through) is listed too, but providers can change this at any time.

All providers were personally tested by me in May 2026 under the same conditions, with an iPhone 16 Pro in Athens. For speed I used the Ookla speedtest, and for response time meter.net. For Pingwe and GoMoWorld I tested a European plan, which may differ from the local offering. Routing (which country the data passes through) is listed too, but providers can change this at any time.

Local networks in Greece

These are the mobile networks in Greece:

• Cosmote
• Vodafone
• Nova

Sticking to tourist areas or major cities?

In Athens, Thessaloniki and on popular islands like Crete, Rhodes, Mykonos, Santorini and Corfu, all three networks work perfectly well. 5G is widely available in the major cities and tourist areas. During my trip to Greece (May 2026) I had near-constant 5G coverage, even outside city centres. For an average city break or beach holiday, it doesn't really matter which network your eSIM uses. Many travel eSIMs also work across multiple Greek networks at once.

During my testing, eSIMs on the Nova network performed strongest on average. Not because Nova has the best network as such; roaming agreements undoubtedly play a part too. But for a regular holiday where you're not venturing off the beaten track, network choice in Greece isn't something to lose sleep over.

Heading somewhere more remote?

Travelling to smaller islands, mountain villages on the mainland, or the less-visited parts of the Peloponnese? Then it's a different story. On those routes, Cosmote has the widest coverage. One important caveat: very few travel eSIMs work on Cosmote. Most eSIM providers use Vodafone GR or Nova as their local partner. For travellers heading genuinely off the beaten path who want certainty, a local Cosmote SIM is sometimes the better choice.

Going to the eastern islands?

Lesvos, Chios, Samos, Kos and Rhodes sit just a few kilometres off the Turkish coast. There your phone can unwittingly connect to a Turkish mast, which leads to high roaming charges outside the EU. An eSIM that only works on Greek networks prevents this risk. Read more about Turkish roaming charges on Greek islands.

Buying a local SIM card

Many UK travellers will get the best value with a travel eSIM, especially if their plan doesn't include EU roaming. But if you need a local Greek number, or specifically want a local Cosmote SIM for better coverage, then a local SIM card is sometimes the better choice.

During my trip, the only eSIMs I could find at Athens International Airport (ATH) were from Vodafone, sold via two Sim Local stores. The Sim Local shop by baggage reclaim was open, but the one in the arrivals hall was unexpectedly closed despite it being busy and nearly peak season. According to the Sim Local website the kiosk should have been open, but it wasn't. Walking back to the baggage hall isn't possible at that point.

The prices were on the higher side too:

• 35 euros (around £30) for 25 GB and 100 minutes
• 50 euros (around £43) for 300 GB and 100 minutes

Compared to a travel eSIM (which you can get from just a few pounds), these bundles are fairly pricey with a high entry point. On top of that, Vodafone isn't the strongest network in Greece, especially in remote areas and on smaller islands. Personally, I wouldn't go for this option. Sim Local doesn't sell Vodafone SIM cards online either; they're only available at the airport.

Important to know: buying a Greek SIM card requires ID. You'll need to show your passport, and the seller registers your details. This is required by law and applies to all Greek operators.

At Athens airport I couldn't find any Cosmote or Nova vendors on-site. For other Greek airports (Heraklion, Thessaloniki, Mykonos, Santorini, Rhodes) the picture is less clear. Some sources mention operator kiosks, but I haven't been able to verify this myself. Want to be sure of a specific network? Buy an eSIM before you fly, or plan a visit to a Cosmote shop in the city.