Best eSIM for Greece in 2026: Complete Data Plans & Prices Compared

My Top Picks: The Best eSIMs for Greece in 2026

I've tested eSIMs across Athens and the islands: my overall winner is Sim Local, which connects to all three Greek networks — Cosmote, Vodafone and Nova. GoMoWorld takes best value overall, while Saily wins for unlimited data with unrestricted hotspot.

Greece eSIM Prices Compared: 10 GB and 20 GB Plans in Euros

Here's how the main providers stack up on the two most popular plan sizes:

At 20 GB, Sim Local and Nomad are the clear value picks; Jetpac's advantage only appears at 30 GB and above. For a week-long trip, 10 GB comfortably covers an Athens-and-islands itinerary.

eSIM vs International Roaming Charges: Real Out-of-Pocket Costs

Travellers on non-EU home networks generally do not get inclusive EU roaming, and a two-week trip on a roaming add-on usually costs more than a local eSIM. Check your own operator's daily rate before you fly, and compare it against the plans below.

Vodafone charges €2.75 per day on plans bought after 11 August 2021 (about €38 for two weeks), and EE's Roam Abroad pass costs €2.72 per day. Three charges €2 per day, or offers Go Roam passes at €5 for 3 days, €12 for 7 days or €24 for 14 days. O2 still includes EU roaming up to 25 GB fair use, and Three caps roaming data at 12 GB.

Against a Greece eSIM from under €5, or 10 GB for around €10, the maths is decisive — unless you're on O2 under the fair-use cap.

What Greek Mobile Coverage Is Really Like: Networks, Speeds and the Islands

Greece runs on three networks: Cosmote, Vodafone Greece and Nova (formerly Wind). Cosmote has the widest coverage, Vodafone Greece is strong in cities and islands, and Nova — which Airalo relies on — is the weakest, so your eSIM's carrier matters as much as its price.

eSIM Coverage on Santorini, Mykonos, Crete and Rhodes

Athens and Thessaloniki get solid 4G plus a fast-growing 5G network — on one 5G test in central Athens I measured about 1.5 Gbps down, which is quicker than most home broadband. Santorini, Mykonos, Crete and Rhodes all hold strong 4G, fast enough for maps, streaming and video calls; in Fira, Oia and Mykonos Town my signal never dropped below 4G.

In the remote Cyclades, my eSIM kept usable 4G on Tinos, with brief drops to 3G in mountain villages. Cosmote covers remote islands far better than Nova, so for island-hopping beyond the headline destinations, pick an eSIM on Cosmote. Signal also persisted on most inter-island ferries, cutting out only near the smallest islets for 10–15 minutes.

The Turkish Mast Warning: Avoid Roaming Traps on the Eastern Islands

On Lesvos, Chios, Samos, Kos and Rhodes, your phone can silently connect to Turkish masts across the water. Turkey sits outside EU roaming tariff protections, so that switch can generate bills in the thousands of euros.

The fix takes seconds: disable data roaming on your primary home SIM (keep it on for your travel eSIM only), or switch data entirely to the eSIM. Check your carrier name occasionally — if it shows a Turkish operator, switch back to manual network selection.

My Comparison of the Best eSIM Providers for Greece

Here's how the main options stack up for a Greece trip, from Sim Local to Airalo, and even Revolut's app-based eSIMs from €1.50.

Best Unlimited Data eSIM for Greece: My Top Choice

Saily is my top pick for unlimited data, with plans running 5 to 30 days and no hotspot restrictions — but read the fine print: Saily throttles speed after roughly 5 GB per day of high-speed data under a Fair Use Policy. I rarely hit that cap with maps, email and video calls. Airalo's Greece unlimited plans run from just a few euros for 3 days up to 30 days on the Nova network, with no daily throttle mentioned. Orange Travel is notable for offering high-speed European data packages without aggressive fair-use throttling. So always check the daily allowance before buying — an "unlimited" label means little once throttling kicks in mid-holiday.

Best eSIM for Multi-Country Trips: Europe-Wide Plans

If your itinerary goes beyond Greece — Italy or Turkey, say — a regional eSIM beats juggling single-country plans. Airalo's Europe eSIM covers 35+ countries, with Europe-wide plans starting at low rates. Ubigi wins my vote for pan-European travel, with reliable cross-border coverage in my testing. SimOptions bundles include EU roaming plus a local number with calls and SMS, useful for booking Greek restaurants or tours by phone. Trip.com sells discounted Greece eSIMs from €0.72, with Greece+Italy and Greece+Turkey bundles close behind — though a single Europe-wide plan is usually simpler.

eSIM vs Prepaid SIM Card in Greece: Which I'd Choose

Physical prepaid SIMs from Cosmote, Vodafone Greece or Nova can be marginally cheaper per gigabyte, but the hidden cost is time: you queue at a kiosk — often at Athens Airport after a late flight — and present your passport for ID registration, required under Greek law. With the new EU Entry/Exit system adding border delays, an eSIM bought online in minutes before you fly and activating automatically on landing wins. My rule: solo traveller wanting maximum reliability on Cosmote's network, buy a physical SIM in the city; everyone else, use an eSIM.

How Much Data Do You Actually Need for a Trip to Greece?

Work out how much data you'll use before buying — otherwise you'll overpay or run dry halfway through a ferry to Santorini.

A light user — Google Maps for Athens, WhatsApp calls home, a bit of email — manages on 1–3 GB a week. Navigation is cheap: an hour of Google Maps costs 5–10 MB, Spotify around 50 MB — ideal if you're getting around Athens mostly on foot and by metro. An average user adding social media, photo uploads and browsing burns 500 MB–1 GB a day, so 10 GB covers one to two weeks. For most international travellers planning their Athens trip budget, 10 GB is enough for a week in Greece.

The exception is streaming: Netflix in HD devours 1–3 GB per hour, so heavy streamers or video callers need 30 GB or unlimited. Hotel and taverna Wi-Fi absorbs some of that. My rule of thumb: one week means 10 GB, two weeks mean 20 GB, heavy streaming means unlimited. Don't pay extra for "fast" tiers — on Cosmote's network I streamed HD without buffering even on the islands.

How I Set Up a Greece eSIM in 5 Easy Steps

My last Greece eSIM installation took about two minutes: QR code activation, iPhone and Android menu paths, and the settings to check before departure.

Is Your Phone eSIM Compatible? The Full Checklist

Almost every modern smartphone manufactured since 2018 supports eSIM — except network-locked handsets. iPhone XS (2018) onwards works, including iPhone 15 and 16 models. For Android, you need a Samsung Galaxy S20 or newer, or a Google Pixel 3 or newer — budget Samsung A-series models are inconsistent, so check your handset. Dial *#06#: if an EID number appears, your phone supports eSIM profiles. Your phone must also be unlocked — EE, O2, Vodafone and Three can lock handsets, and unlocking can take several days, so arrange it well before departure.

Keeping Your Home Number Active in Greece (and Avoiding Double Charges)

With Dual SIM, your Greece eSIM handles mobile data while your domestic physical SIM stays active for essential SMS and two-factor authentication codes. Turn off Data Roaming on your home SIM while leaving the line open for emergency calls and bank OTP messages. For routine calls home, use WhatsApp or FaceTime over eSIM data to avoid carrier roaming rates.

Where I'd Buy My Greece eSIM Before Flying Out

I always buy my Greece eSIM from home a few days before flying — Athens airport kiosks charge more, and a QR code already in my inbox beats queuing after landing. My checklist: confirm your phone is eSIM-compatible and unlocked, size the plan to your trip length, check the activation window, and verify hotspot support. Network matters most for islands — Cosmote-based plans (which Sim Local uses) give the best coverage beyond Athens, so check which network sits behind any plan. For a 10 GB plan, compare Sim Local against Airalo and Saily, and glance at current Trustpilot ratings before completing your purchase. Discount codes of around 10% appear regularly. Install the QR before boarding and you're online the moment you land in Santorini.

Install it before you fly, not after you land

An eSIM has to be downloaded over a working internet connection, which means the installation happens at home on wi-fi, not in the arrivals hall with no signal — the profile is installed before departure and simply activated on arrival. Keep the QR code or activation email somewhere reachable offline. One geographic quirk worth knowing on the eastern islands: from Lesvos, Chios, Samos, Kos and Rhodes a phone can latch onto a Turkish network across the water, which sits outside EU roaming rules. Turn off automatic network selection there and pick the Greek operator by hand.

FAQ

Which is the best eSIM provider for Greece in 2026?

Top tourist eSIM providers for Greece include Sim Local, Airalo (Eurolink & Meno Link plans), Holafly (unlimited data), and Maya Mobile. Sim Local and Airalo offer top value with 10 GB 30-day plans from €10 to €15 operating on Cosmote and Vodafone 5G networks.

Do eSIMs work on Greek islands and ferries?

Yes. eSIMs operate smoothly across Santorini, Mykonos, Crete, Rhodes, and the Saronic islands. For inter-island ferry crossings, providers using Cosmote or Vodafone networks provide the widest coastal mobile coverage.

Is an eSIM cheaper than buying a local physical SIM at Athens Airport?

Yes. Airport SIM kiosks charge premium tourist rates (€25–€35 for starter packs). Purchasing a digital eSIM online before departure is typically 40–50% cheaper, eliminates airport lines, and activates immediately upon landing.

Can I make phone calls with a travel eSIM in Greece?

Most travel eSIMs are data-only packages. For making calls to hotels, restaurants, or tour operators, use WhatsApp, FaceTime, or Skype over high-speed mobile data.

How do I install an eSIM before arriving in Athens?

Scan the QR code sent to your email in your phone settings (under Cellular / Mobile Data -> Add eSIM) while connected to home Wi-Fi before your flight. Turn on data roaming once your plane touches down in Greece.