
Published
:10 Sept 2026
Landing in Greece without mobile data gets annoying fast. Your hotel address, ferry booking, restaurant reservation and Google Maps route are probably all on the same phone.
A Greece SIM card solves that problem, but picking one isn't as simple as choosing the cheapest package.
Greece has three main mobile networks, Cosmote, Vodafone and Nova, plus travel eSIM options you can install before flying.
Coverage matters too. A plan that works perfectly around Athens may feel different on Crete, Santorini or a ferry route between islands.
For most tourists, the decision comes down to four things: coverage, data allowance, whether you need a Greek number and how quickly you want to get connected.
For broad network coverage, Cosmote is the strongest starting point.
Vodafone is a strong alternative and currently leads some reliability measurements. Nova has particularly attractive short-stay tourist bundles.
If you don't want to visit a shop or swap a physical SIM after landing, a Greece eSIM is usually simpler. You can install it before departure and turn it on when you reach Greece.
Yaalo also offers regional Europe eSIM plans covering multiple European destinations, which can suit travellers visiting Greece as part of a wider Europe trip.
Cosmote currently leads Opensignal's national Coverage Experience score at 8.4 out of 10. Vodafone, however, leads Reliability Experience and Time on Network.
There isn't one network that wins inside every hotel, beach or village. Your itinerary still matters.
Greece has three main mobile network operators. All offer prepaid services, but their current strengths are different.
Cosmote is the safest first choice when your trip involves more than major cities.
In Opensignal's March 2026 report, Cosmote scored 8.4/10 for Coverage Experience, compared with Vodafone at 7.6 and Nova at 6.6.
It also recorded the highest average Download Speed Experience at 71.9 Mbps and the fastest 5G download result at 185.6 Mbps.
Current WHAT'S UP prepaid data options include 9GB plus 100 SMS for €10.50 for one month and 20GB plus 100 SMS for €13.50 for one month.
Vodafone doesn't beat Cosmote on national coverage measurements, but it performs very well on connection reliability.
Opensignal gives Vodafone the Reliability Experience award with 902 points. It also records the highest Time on Network at 98.3%, compared with 96.8% for Cosmote and 96.1% for Nova.
Vodafone CU's current price list includes a 20GB data-only package for €13.50 for 30 days. Its broader prepaid range also includes plans combining calls, SMS and larger data allowances.
Vodafone makes sense if you want a major Greek network with good availability and strong day-to-day reliability.
Nova has one of the easiest tourist offers to understand. Its current FREE2GO tourist package gives 100GB for seven days after a €15 top-up. It includes unlimited minutes to Greek networks and 500 domestic SMS.
The €20 tourist option provides 250GB for 15 days, unlimited Greek-network minutes and 1,000 domestic SMS.
Nova says each tourist bundle activates automatically after the matching top-up and can only be activated once.
That's a lot of data for a short trip. Just remember that the €15 or €20 figure represents the relevant top-up and package activation.
Check the cost of the physical connection pack before treating it as your final all-in price.
Prepaid prices in Greece are reasonable, but headline package prices don't always tell the full story.
A physical SIM may involve a connection pack, registration and a top-up before the package becomes active.
Travel eSIM pricing is usually simpler because the plan is purchased directly online.
Planning your trip before choosing connectivity? Check our guide on the best time to visit Greece to decide the ideal season for beaches, islands, and sightseeing.
Yaalo's official Greece eSIM page currently lists 1GB for seven days at $1.69, 10GB for 30 days at $10.14 and 20GB for 30 days at $18.91. Unlimited plans currently start from $2.13.
WHAT'S UP and Vodafone prices above come from their current official prepaid package information. Nova's two tourist bundles are listed on the official FREE2GO tourist page.
Don't compare prices without also checking validity. A €15 package lasting seven days serves a very different trip from a 30-day plan.
The safest place to buy a local prepaid SIM is an official Cosmote, Vodafone or Nova store. Authorised retailers and selected kiosks also sell prepaid connections.
Buying in a city usually gives you more time to compare plans than buying immediately after your flight.
Athens Airport is one exception where connectivity is clearly available. Athens International Airport currently lists Sim Local at Arrivals Exit 1 and in the non-Schengen baggage reclaim area.
Both staffed locations list operating hours of 06:00 to 22:00 daily. The airport also lists vending machines in Schengen arrivals and the satellite arrivals area.
If you arrive late at night, don't build your whole connectivity plan around finding an open airport shop.
That's where an eSIM has a clear practical advantage. You can buy it online and receive the installation details digitally before arriving in Greece.
Yes. Expect identity verification when activating a local Greek prepaid SIM.
The exact process can vary by operator and sales channel. In a store, staff may register the connection using your passport or other accepted identification.
Nova's current FREE2GO tourist process shows how detailed this can be. Customers starting online identification must enter their details, take a selfie, photograph an accepted identity document and digitally sign a declaration before activation.
For that reason, buy from an official operator store or clearly authorised retailer when possible.
Handing a passport to an unidentified street seller just to save a few euros isn't a trade I'd recommend.
Your phone must also be carrier-unlocked before you insert another operator's SIM.
A travel eSIM can remove some of this paperwork. Currently states that ID or eKYC isn't required for its standard Greece data eSIM.
Cosmote currently has the strongest overall coverage results in independent 2026 measurements.
That doesn't mean Vodafone or Nova are poor choices. All three operate nationwide networks, and local conditions can change the experience.
Source: Opensignal report on Greece’s mobile network experience. Athens and Thessaloniki are rarely the hard part.
Islands make the choice more interesting. Santorini and Mykonos have strong tourist infrastructure, but summer crowds can put extra pressure on local networks.
Building materials and steep terrain can also weaken indoor signal. Crete deserves more attention because it is much larger.
A plan that feels fine around Heraklion may behave differently on a rural road or remote beach.
Rhodes and Corfu have similar location-by-location differences. If your trip involves driving through rural areas or spending a lot of time outside major towns, Cosmote's broader national coverage makes it the safer starting point.
For most short tourist trips, an eSIM is easier. A local physical SIM becomes more useful when you want a Greek number or expect to stay longer.
If you are new to the technology, learn more about what is an eSIM and how it works before choosing a travel plan.
Physical SIMs still have real advantages. A local number can help with domestic calls, SMS and services that expect a Greek telephone number.
Travellers with phones that don't support eSIM also need a physical card.
A Yaalo eSIM avoids the shop visit and SIM swap. You can keep your normal SIM in place for calls or messages while using it for mobile data on a compatible dual-SIM phone.
Check that your phone supports eSIM and is carrier-unlocked before buying.
If your main goal is mobile data without visiting a local store, Yaalo eSIM gives you several Greece-specific choices. Current plans range from small short-stay packages to larger bundles.
It currently lists 1GB options for one or seven days, 5GB packages for up to 30 days, 10GB plans for 15 or 30 days, 20GB packages for 30 or 60 days and a 50GB plan with 60-day validity. Unlimited-data options are also available.
The standard Greece plans are prepaid and data-only. They don't include a Greek phone number, SMS, or standard cellular voice calls.
For calls, you can still use internet-based services such as WhatsApp, FaceTime, Telegram or other calling apps while connected to mobile data.
Yaalo supports QR-code and manual installation. Its Greece page also lists mobile hotspot and tethering support.
You can purchase and install the eSIM before leaving home. The plan begins when the eSIM connects to a supported mobile network in Greece, so installing it early doesn't use your validity period.
For a short holiday, that can save you from spending part of your first day searching for a SIM shop.
To check whether your phone is compatible with an eSIM, check eSIM-compatible devices and carrier lock status.
The phone must also be carrier-unlocked. On iPhone, check Settings → General → About → Carrier Lock. It should say No SIM restrictions.
For a Greece trip, travellers should check eSIM compatibility and carrier-lock status before purchasing an eSIM.
Most travellers use less data than they expect until video enters the picture.
Download offline Google Maps before leaving your hotel Wi-Fi. It reduces data use and can save you when coverage drops on a remote road.
Instagram Reels, TikTok, YouTube and video calls change the calculation quickly. If you're working remotely from Greece, don't choose a tiny package just because your hotel promises Wi-Fi.
Hotspot data is useful when that Wi-Fi turns out to be painfully slow. Yaalo supports hotspot and tethering on its Greece eSIM, which can be useful if you need to connect a laptop or another device.
Usually, yes, if your Greek local prepaid package includes eligible EU roaming. Greece participates in the EU's Roam Like at Home rules.
Eligible customers can generally use calls, texts and mobile data while temporarily visiting another EU country without standard roaming surcharges. Fair-use data limits can still apply.
That means a Greek local SIM can be useful if Greece is only the first stop before Italy, France or Spain.
Check the package's EU allowance before assuming the entire domestic data bundle travels with you.
If you're visiting several countries, a Yaalo Europe eSIM can be simpler than checking each national roaming limit.
Current regional Yaalo plans cover either 37 or 47 European destinations depending on the package.
Island hopping creates one unusual roaming risk. EU Roam Like at Home rules apply to terrestrial mobile networks.
On open water, your phone may connect to a non-terrestrial or satellite-based maritime network instead.
Those services are outside normal EU roaming price caps and can be expensive. Check the network name while you're on a ferry.
If your phone suddenly leaves Cosmote, Vodafone or Nova and shows an unfamiliar maritime network, switch off mobile data until you're back near terrestrial coverage.
The right choice changes with your itinerary.
For a city break, convenience usually wins. For a month-long stay, local prepaid pricing and a Greek number start to matter more.
For a road trip or island-heavy itinerary, coverage should carry more weight than saving one or two euros on the package.
There isn't one perfect SIM for every Greece trip. Choose Cosmote when broad national coverage matters most.
Vodafone is a strong alternative if reliability is your priority, while Nova's tourist packages stand out for short stays that need a lot of data.
If you mainly need Maps, WhatsApp, bookings and mobile data from the moment you land, a Yaalo eSIM is often the simpler option.
You can buy and install your Greece eSIM before departure, keep your physical SIM in place on compatible dual-SIM phones and start the plan once you connect in Greece.
Check your device compatibility, trip length and expected data use before buying. Then choose the plan that fits the trip you are actually taking, not the biggest number on the package.
Cosmote is the strongest starting choice for broad coverage based on Opensignal's March 2026 results. Vodafone is strong on reliability, while Nova offers an attractive tourist data package.
Current prepaid data packages start around €10 to €15 for many useful monthly or tourist options. The final physical SIM cost can also include the starter pack or required top-up.
Yes. Athens International Airport currently lists Sim Local locations in arrivals, plus vending-machine options.
Yes, expect identity verification for a local prepaid SIM. The exact documents and activation process depend on the operator and sales channel.
Cosmote currently leads Opensignal's Coverage Experience metric with 8.4 out of 10. Vodafone scores 7.6 and Nova 6.6.
Yes. All three main Greek networks operate 5G. Opensignal's 2026 results show 5G download averages of 185.6 Mbps for Cosmote, 152.9 Mbps for Vodafone and 145.4 Mbps for Nova.
Yes. Major Greek networks provide service on Santorini and Mykonos, but signal and speeds can vary with location, buildings, terrain and summer congestion.
An eSIM is usually better for short tourist trips because you can install it before landing. A physical Greek SIM is better when you need a local number or your phone doesn't support eSIM.
Around 5 to 10GB is enough for many travellers using Maps, messaging, web browsing and moderate social media. Heavy streaming or hotspot use can push that above 20GB.
It depends on the provider and plan. Yaalo's official Greece eSIM page currently lists tethering and mobile hotspot support.
Yes. If your phone connects to a maritime satellite network instead of a terrestrial Greek network, normal EU roaming price caps may not apply.

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