Product info
Athens eSIM plans
| Unlimited data · 5 days | $15.99 | Buy eSIM |
| Ohayu recommendsUnlimited data · 10 days | $27.99 | Buy eSIM |
| Unlimited data · 15 days | $36.99 | Buy eSIM |
| Unlimited data · 30 days | $49.99 | Buy eSIM |
| 3GB prepaid eSIM · 14 days | $9.49$3.16 / GB | Buy eSIM |
| 5GB prepaid eSIM · 30 days | $13.49$2.70 / GB | Buy eSIM |
| 10GB prepaid eSIM · 30 days | $19.99$2.00 / GB | Buy eSIM |
| 15GB prepaid eSIM · 60 days | $27.79$1.85 / GB | Buy eSIM |
| 20GB prepaid eSIM · 90 days | $35.49$1.77 / GB | Buy eSIM |
| 50GB prepaid eSIM · 90 days | $90.49$1.81 / GB | Buy eSIM |
You can install your eSIM before the trip and activate it when you arrive in Greece. Validity starts after eSIM activation.
Plan details
How much mobile data you need
What's the best eSIM for Athens?
A city break – 3 GB
Maps, museums, tavernas.
Athens and an island – 10 GB
A week, ferries, photos.
Island-hopping – 20 GB
Several islands on the one plan.
Working from Athens – Unlimited
Tethering across a longer stay.
Coverage and network
Coverage across the city and out to the ports
Greece mobile networks
Greece sits 28th globally at around 145 Mbps, and Athens measures higher again at about 173 Mbps. All three operators run 5G across the basin. The city is where Greek coverage is at its best - the islands vary, and the sea between them does not count.
Speedtest Global Index · Mobile · Athens · June 2026
Download
172.91 Mbps
Upload
21.67 Mbps
Latency
15 ms
Global rank
#49 of 98
Athens, specifically
- Plaka, Monastiraki, Koukaki: Strong 5G right up the slopes below the Acropolis.
- The Acropolis itself: Covered, but it takes several million visitors a year and the mid-morning crush on the Propylaea steps slows uploads. The view from Areopagus hill is the better place to post from.
- The metro: All three lines carry signal, including the deep archaeological stations. Line 3 out to the airport holds up the whole way.
- Piraeus: Well covered across all the gates, which matters because working out which of them your ferry leaves from is a genuine task. Signal drops once you are properly out of the harbour.
- Day trips: Delphi, Cape Sounion and Nafplio are covered in the towns and along the main roads. The mountain stretch of the Delphi road has gaps.
Greece, and the EU
One plan covers the whole of Greece - Athens, the Cyclades, Crete, the Dodecanese. As an EU member the same terms carry into Italy or Bulgaria if the trip continues.
How to install eSIM
Connected in 3 steps
- 01
Buy before you fly
Choose your data plan before your trip.
- 02
Download & install
Log in to your account, tap your eSIM, and follow the on-screen instructions.
- 03
Land & activate
Activate when you arrive in Greece. Turn on roaming for the eSIM and it connects to a local network.
Before you buy, make sure your phone supports eSIM — see Ohayu compatible devices list or dial *#06#. It's a free request to your phone's settings. If you see the EID number — your phone is eSIM-compatible.
Arriving in Athens
Airport Wi-Fi at ATH
Athens International gives you free Wi-Fi in 120-minute sessions - click the internet access banner and you are on. Two hours is plenty, but you will be reconnecting if you have a long layover before an island flight.
Side by side
Athens eSIM Comparison
Indicative comparison based on publicly listed Greece plans as of August 2026. Competitor pricing and policies change - check their sites for current terms.
Frequently asked questions
Where to buy a SIM card in Athens?
Cosmote, Vodafone and Nova have shops on Ermou and around Syntagma, and there are counters at the airport. Airport pricing is the usual markup, and you will need your passport wherever you buy.
Do I need ID to buy a prepaid SIM in Greece?
Yes. Greece is one of the EU states that requires every SIM to be registered against an identified owner, so the shop takes your passport details at the point of sale. It is a short process and staff in tourist areas do it all day.
Ohayu plans issue no Greek number, so there is nothing to register and no counter to visit.
Does one plan cover the islands as well as Athens?
Yes - it is one country and one plan. Santorini, Crete, Mykonos and the rest are all included, with no island supplement. What the plan cannot do is cover you mid-crossing: on a four-hour ferry through open water you will lose signal for long stretches regardless of provider.
eSIM not working in Athens?
In the middle of a ferry crossing there is no coverage to find. In the city, the fix is usually the data-line setting - Ohayu selected for mobile data, roaming allowed, then an Airplane mode toggle. Chat and support@ohayu.com are open 24/7.
