Local operator vs 2-minute install

Cosmote direct or travel eSIM?

Cosmote has the best network in Greece. The question is whether you buy it in a Greek shop with your passport, or ride it through a travel eSIM installed from your sofa.

A local on a call in a village square — Same towers, different paperwork

Quick answerFor stays under a month, ride Cosmote's network through a travel eSIM: Saily connects to Cosmote and Vodafone, installs in two minutes at home, no paperwork. Buying Cosmote or Vodafone directly makes sense for multi-week stays or when you need a Greek phone number: expect a shop visit, passport registration required by Greek law, and tourist packs around €20–30 (about $22–33). Checked August 31, 2026.

Side by side the honest trade

	Cosmote / Vodafone in a shop	Travel eSIM on their networks
Setup	Find a shop, queue, passport registration (required by law for every prepaid SIM in Greece)	2 minutes at home, QR code
When you're connected	After the shop opens and the paperwork clears	The moment you land
Typical price	~€20–30 (≈$22–33) tourist packs, 10–20GB	$18–22 for 10GB
Greek phone number	Yes, a real one	No, data only
Network quality	Cosmote directly	The same Cosmote towers, via roaming agreement
Top-ups after you leave	Greek payment friction	In the app from anywhere

The network you stand on is identical either way; a Saily eSIM and a Cosmote shop SIM use the same towers. What you are choosing is paperwork versus a phone number. Tourists on a one-to-three-week trip almost never need the number; people settling in for a season or opening a Greek bank account do.

The airport counter trap: kiosk tourist SIMs at Athens airport carry the same passport process with a queue of jet-lagged people ahead of you, and the late-arrivals problem: land at 23:40 and the counter is dark. If you want a physical Greek SIM anyway, buy it in a city-center store the next morning, not at arrivals.

The three operators as a buyer sees them

	Cosmote	Vodafone GR	Nova
Coverage reputation	best overall, esp. islands/rural	strong cities + big islands	urban-solid, fades offshore
5G footprint	widest	wide in cities	growing, city-centric
Tourist packs	yes, in stores	yes, in stores	yes, cheapest of the three
Store density in tourist areas	high	high	moderate
Travel eSIMs riding it	Saily, Yesim	Saily, GigSky, Airalo, Yesim	Airalo, GigSky, Yesim

Useful shortcut: if a travel eSIM lists Cosmote, its coverage story is Cosmote's. That single row explains most of our main ranking.

If you do go to the store what actually happens

Bring your passport. Greek law requires identity registration for every prepaid SIM; no document, no SIM, no exceptions at the till.
Ask for the tourist pack. Cosmote and Vodafone both sell visitor bundles (~€20–30 (≈$22–33) for 10–20GB with some minutes). Ask what is promo vs standing price: summer offers rotate.
Ask for eSIM format if you want it. Availability of prepaid eSIM varies by store and stock; physical SIM is always there, so bring the ejector pin or ask them to swap it in.
Test before leaving the counter. Data on, one page loaded, one call placed. Fixing a dud registration means a second queue tomorrow.

Questions local vs travel

Can a tourist get a Cosmote eSIM directly?

Yes, in Cosmote stores with your passport; availability of eSIM-format prepaid varies by store. It is a normal errand, just an errand on your holiday. The travel-eSIM route skips it entirely.

Why does Greece ask for my passport for a SIM?

Greek law requires identity registration for all prepaid SIMs, as in most of the EU. Travel eSIMs are sold under the provider's home-country rules, which is why they skip the Greek paperwork.

Is Vodafone GR worth considering instead of Cosmote?

In cities and on major islands, yes, they are close. Cosmote pulls ahead in mountain villages, on ferry routes and on the small islands. Saily uses both and picks whichever is stronger where you stand.

Cosmote coverage · zero paperwork · $21.99

Saily 10GB rides Cosmote and Vodafone. Installed before your flight boards.

Get Saily for Greece

Sources & freshness: Registration requirement per Greek prepaid-SIM law; tourist-pack pricing from summer-2026 traveler reports; verified August 31, 2026. Need a number? See Greece eSIM with a phone number.