Best eSIM for Greece (2026): Prices, Networks & Island Coverage

Roafly is our value pick among the 30-day fixed-data packages compared here: 10 GB costs $12, while 20 GB costs $16. That combination of price, Vodafone and Nova access, and hotspot use across your purchased allowance suits holidays involving maps, accommodation messages and ferry bookings.

Your existing roaming allowance may already cover Greece, however. Start there before paying for another plan; otherwise, compare equivalent packages and pay particular attention to network access if your itinerary includes smaller islands or rural accommodation.

Greece eSIM Prices: Compare the Same 30-Day Allowance

Seven providers in this comparison sell matching 5 GB, 10 GB and 20 GB packages valid for 30 days. Keeping the duration consistent avoids comparing a cheap weekend offer with a plan that lasts the whole holiday.

Prices checked on October 12, 2026, in the providers’ USD stores. Public sale prices are included; coupon, first-purchase and multiple-eSIM discounts are excluded. Prices and offers can change.

Two exceptions matter when shopping. Jetpac’s promotional 30 GB package costs $24.99, making it cheaper than its own 20 GB offer. Roamless also sells pay-as-you-go credit, which can work differently from buying a fixed allowance.

Holafly uses a daily unlimited model: $27.50 for seven days or $76.50 for 30 days at the same check date. Its hotspot allowance and fair-use conditions need separate consideration, so those prices are not treated as equivalent to the fixed-data columns.

Which Greece eSIM Provider Fits Your Trip?

Roafly: Strong Value for 10 GB and 20 GB

Roafly’s Greece eSIM combines the lowest prices in the matched fixed-data table with access to Vodafone and Nova, still identified as Wind in the product details.

The most useful upgrade is from 10 GB to 20 GB: another $4 doubles your allowance. That gives more room for photo uploads, social media and occasional laptop tethering without paying for a daily unlimited plan. If you expect to need more data, Roafly also offers 50 GB for 30 days at $39.90.

Hotspot draws from the same purchased allowance, with no separate hotspot quota. Top-ups are supported, and the plan provides data without a Greek phone number. Its validity begins when the eSIM first connects to a supported network in Greece, allowing you to install before departure.

We would start with 10 GB for ordinary holiday use and consider 20 GB when sharing data or spending less time on Wi-Fi. The later data section explains how to make that choice.

Airalo: Flexible Durations and Two Disclosed Networks

Airalo’s Greece offer now identifies Nova and Vodafone, so older comparisons describing it as a Wind-only service are outdated. Its package details distinguish Nova 5G access from Vodafone 4G access.

Shorter-validity packages offer another way to buy, although they do not necessarily beat Roafly’s longer-validity prices. The matched 30-day packages cost more at all three allowances.

Saily: Security Features Alongside Travel Data

Saily adds features such as virtual location, ad blocking and web protection to its data service. Those extras provide a reason to consider it beyond the allowance itself, particularly if you already use them.

Its fixed-data plans permit hotspot use without a separate sharing restriction. However, the public Greece page does not name the local partner networks, so we would not assign it a specific Greek operator based on a third-party comparison.

Roamless: Pay-as-You-Go Flexibility and Three Networks

Roamless identifies Cosmote, Vodafone and Wind/Nova, giving it the broadest disclosed network set here alongside Yesim.

Its fixed packages expire after 30 days, while pay-as-you-go credit does not expire. At the checked Greece rate of $1.95 per GB, consuming exactly 5 GB would use $9.75 of credit. That is a usage calculation, rather than a separately sold 5 GB package.

Light or unpredictable usage is where this model becomes interesting: unused credit can remain for a later trip.

Its 50 GB plan costs $39.95 for 30 days, almost the same as Roafly’s $39.90. At that allowance, access to Cosmote is a more meaningful distinction than price.

Jetpac: Look Beyond the Exact Package Size

Jetpac’s current promotions make its larger packages more attractive than the 20 GB row suggests. Buying 30 GB for $24.99 makes more sense than paying $36 for 20 GB while both offers remain available.

Its support network list includes Wind and Vodafone for Greece, and hotspot sharing is supported. Compare the actual allowance you expect to use against the promotional total; paying for more data can be sensible when the larger package costs less.

aloSIM: Consider Whether You Need Its Calling App

aloSIM includes a Hushed phone number for calls and texts through a separate app. That can be useful, but it should not be confused with receiving a native Greek mobile number on the data eSIM.

The 30-day packages cost more than Roafly’s equivalents. Vodafone is named in its Greece network information, while the second operator is inconsistently labelled “WINDTRE”; we have therefore not counted a confirmed second Greek network for aloSIM.

Yesim: Another Option With Cosmote Access

Yesim’s Greece package information identifies Cosmote, Vodafone and Wind/Nova. Its public sale prices put it below several competitors in the fixed-data table, although above Roafly at all three allowances.

Hotspot availability is described as dependent on the operator. If sharing data with a laptop is central to your trip, obtain the applicable tethering conditions before purchasing rather than assuming the allowance works exactly like Roafly’s.

Holafly: Unlimited Phone Data With a Separate Hotspot Limit

Holafly’s daily pricing suits people who prefer buying connectivity for a set number of days instead of choosing a fixed allowance. Its Greece service names Vodafone and Nova.

The practical limitation is sharing: hotspot is capped at 1 GB per day, so a seven-day plan provides up to 7 GB of shareable data. Unlimited phone use therefore does not make it an unlimited laptop connection.

Operator fair-use measures may also temporarily reduce speeds. Holafly does not give a precise usage threshold on the country page, so unlimited should not be read as a promise of unrestricted full-speed data.

Greek Networks, Island Coverage and Ferry Journeys

Greece’s three main mobile networks are Cosmote, Vodafone and Nova. Wind is Nova’s former name, which remains in some travel-eSIM listings.

The September 2026 Opensignal results show different strengths: Cosmote leads average download speed, while Vodafone leads Time on Network and 5G Availability. These national measurements describe different aspects of service; they are not a ranking of every beach, village or roaming eSIM.

Roafly’s two-network setup gives it more than one supported local option. Roamless and Yesim additionally identify Cosmote. Actual access still depends on the package, device and location, and multiple listed networks do not establish automatic switching to the fastest connection.

Coverage on an Island Is Different From Coverage Between Islands

You do not need a new Greece eSIM each time you travel from the mainland to a Greek island. The more relevant question is whether a supported terrestrial network reaches your accommodation, beach or driving route.

Offshore, that signal can weaken or disappear. Save accommodation addresses, maps and usable copies of tickets before sailing. Planning ferries and transport in Greece also helps you keep transfer details available between connections.

Ship Wi-Fi and onboard satellite mobile networks are separate services. EU roaming protections apply to terrestrial connections, while satellite services can carry different charges; keep your home line’s roaming settings under control during the crossing.

Should You Buy 5 GB, 10 GB or 20 GB?

Trip length matters, but video, uploads and hotspot use usually change the calculation more than moving between islands.

• 5 GB: A reasonable starting allowance for light use, particularly when accommodation Wi-Fi handles uploads and entertainment. Maps, messaging and occasional browsing should be the main mobile activities.

• 10 GB: Our starting point for a typical holiday involving daily navigation, restaurant searches, booking messages and moderate social media use.

• 20 GB: More comfortable for frequent uploads, limited access to Wi-Fi or sharing with another device. Roafly’s $4 upgrade from 10 GB makes this the stronger value choice when usage is uncertain.

These are planning suggestions, not guaranteed trip durations. Video quality, cloud backups and app settings can change consumption substantially.

Laptop use deserves particular attention. Operating-system updates, photo synchronisation and background downloads can consume data without much visible activity. Pause those tasks before tethering, and download entertainment over Wi-Fi.

Remote work involving regular video meetings may need a larger allowance or dependable accommodation internet. Twenty gigabytes should not be treated as an unlimited work connection.

Check EU Roaming Before Buying, Then Consider Local SIM Alternatives

Greece is part of the EU. Eligible customers travelling with an EU/EEA home plan can generally use it under roam-like-at-home rules, subject to their allowance and fair-use conditions.

If that already gives you enough data, another eSIM may add little value. Check the actual roaming allowance, especially if your domestic plan is unlimited. Customers with plans from elsewhere should use their operator’s Greece-specific terms rather than assuming EU inclusion.

Travel eSIMs become more compelling when your home plan charges daily fees, supplies a small roaming allowance or excludes Greece. Our guide to internet options in Greece compares the broader alternatives, including Wi-Fi and local service.

When a Greek SIM Makes More Sense

Needing a Greek mobile number changes the decision. Roafly’s data-only plan keeps internet apps working, but it does not supply a local number for ordinary calls or SMS.

Longer stays may also justify comparing local prepaid offers. The practical details of buying a tourist SIM in Greece—including registration and where to buy—belong in that decision.

Buying after arrival is another option if your device cannot use an eSIM. Check the available SIM cards at Athens Airport when planning an Athens arrival; do not assume every airport has the same shops, opening hours or packages.

Install Before Departure and Set the Correct Data Line

Start with an unlocked, eSIM-compatible device. Compatibility can vary between regional versions of the same phone, so check the exact model rather than relying only on its marketing name.

Set up your Roafly Greece plan in this order:

1. Install over a reliable internet connection before travelling. Keep the installation instructions accessible.

2. On arrival, enable the Roafly line and select it for mobile data.

3. Enable data roaming on that eSIM. Travel eSIMs commonly need this setting to use their supported local networks.

4. Turn off data roaming and automatic mobile-data switching on your home line if you want to prevent it from providing paid roaming data.

Keeping your home SIM enabled can still expose calls and other services to your operator’s roaming charges. Data-line selection alone does not change those terms.

If the eSIM has signal but no internet, check the selected data line and roaming setting first, then follow the provider’s APN and troubleshooting instructions. Avoid deleting the eSIM as an initial troubleshooting step.

Greece eSIM Questions Worth Checking Before Purchase

Will a Greece eSIM also work in Türkiye?

Treat a Greece-only package as covering Greece. If your itinerary continues to Türkiye, buy a package that explicitly includes it or arrange a separate plan. The word “Europe” alone is not enough to establish a regional package’s country list.

Can I keep using WhatsApp with my existing number?

Yes. Changing your mobile-data connection does not require changing your WhatsApp number. Keep the existing account rather than registering it again simply because you installed a travel eSIM.

Can two people share one eSIM plan?

One installed eSIM can provide a hotspot to another device where tethering is supported. Both people then share its allowance and need to remain within hotspot range. Separate plans are more convenient when you expect to split up during the day.

Disclosure: Roafly publishes this guide and is included in the comparison.