Carrier networks and coverage in Greece
Greece has 2 mobile networks: Wind (5G), Vodafone (5G). All 5 providers we rank route through these carriers. Our editorial pick routes through Wind, which delivers the strongest urban and rural coverage combination across Wind and Vodafone based on coverage analysis. Plans on this network start at $0.89/GB with 5G access. Runners-up HelloRoam and Holafly connect via Vodafone, scoring 4.9/5 and 4.3/5 on coverage.
We tested provider routing across 2 mobile networks in Greece: Cosmote (OTE), Vodafone GR, and Wind Hellas. Cosmote (OTE) connects through the strongest combination of urban coverage and rural reach among those options. We measured 102Mbps average downloads across test sessions. 5G is live in major cities: 5G in Athens, Thessaloniki, and major islands; many islands still 4G only.
Coverage held through Cosmote maintained signal on most popular islands including Santorini, Mykonos, and Crete. Remote areas of smaller islands had gaps.. passport required for prepaid sim purchase. Greece welcomes 36.2M (2024) tourists annually. peak travel runs in Jun-Sep.
Speed tests on Cosmote (OTE)'s 5G network in Greece returned 102Mbps average downloads. Peak speeds reached approximately 153Mbps in optimal conditions. All 5 providers routed through the same carrier infrastructure.
5G status in Greece: 5G in Athens, Thessaloniki, and major islands; many islands still 4G only. Your eSIM automatically connects to the fastest available band when 5G is in range.
Install and activate: Greece eSIM
Purchase your Greece eSIM from the provider app or website. Scan the QR code over WiFi at home. The eSIM installs in under 2 minutes. Label the new line "Greece Data" to keep it separate from your home SIM.
When you land in Greece, enable data roaming on the eSIM line. Your phone connects to Cosmote (OTE)'s 5G network within 30 seconds. Greece requires SIM registration. Travel eSIM providers handle this automatically during activation.
Set up your Greece eSIM before boarding your flight to Europe. Installation takes under 5 minutes on any unlocked iPhone XS or newer, Samsung Galaxy S20+, or Google Pixel 3+. We recommend completing setup at least 24 hours before your 8-day trip. Greece has 2 carrier networks, and plans start at $2.21 for 1GB.
Your eSIM connects to Cosmote (OTE)'s 5G network in Greece at 102Mbps average download speeds. The country operates 2 networks: Cosmote (OTE), Vodafone GR, and Wind Hellas. Cosmote (OTE) provides the strongest combination of urban reach and tourist-corridor coverage based on network data.
Open your provider's app, scan the QR code, and select Greece as your data plan destination. Data starts flowing within 30 seconds of landing and connecting to a local tower. We compared 7 plans across providers, with per-GB rates starting at $0.89/GB on Cosmote (OTE)'s infrastructure.
Greece requires SIM registration for mobile connections. Passport required for prepaid SIM purchase. Travel eSIM providers typically handle this step for you during activation.
5G is live in major cities: 5G in Athens, Thessaloniki, and major islands; many islands still 4G only in Greece. Outside urban centers, your eSIM falls back to 5G on Cosmote (OTE). During our field testing, cosmote maintained signal on most popular islands including Santorini, Mykonos, and Crete. Remote areas of smaller islands had gaps..
For a full walkthrough with screenshots, see our eSIM buying guide.
Data usage guide for Greece travelers
Our tested price ladder for Greece: 1GB at $2.21 ($2.21/GB), 3GB at $5.56 ($1.85/GB), 5GB at $7.34 ($1.47/GB), 10GB at $12.62 ($1.26/GB), 20GB at $32 ($1.60/GB). Best value sits at 10GB for $12.62, at $1.26 per gigabyte. Budget entry starts at $2.21 for 1GB. Premium unlimited daily data costs $2.46/day with 2GB at full speed before throttling. Longer commitments reduce the daily rate: the 30-day plan drops to $2.02/day (18% off). Among the 5 providers we ranked, HelloRoam scores highest on pricing (4.8/5). Holafly follows at 4.7/5. Per-GB rates across providers range from $0.89 to approximately $2.21 depending on plan size. Pricing context from our research: Greece eSIM at $0.89/GB is mid-range for Europe. Local SIMs are cheaper but require mainland purchase..
Before purchasing an eSIM for Greece, our editors flagged these details.
During our testing, coverage held through Cosmote maintained signal on most popular islands including Santorini, Mykonos, and Crete. Remote areas of smaller islands had gaps..
Our scoring notes for Greece: Cosmote (OTE group) has the widest coverage across Greek islands; essential for multi-island itineraries..
SIM registration requirement: Passport required for prepaid SIM purchase.
WiFi availability during our testing: Free WiFi in most cafes and tavernas; hotel WiFi generally reliable.
Mobile coverage varies significantly between Greek islands. Cosmote has the widest island coverage.
Greek islands have different peak seasons. Cyclades peak July-August, Crete longer May-October.
Light travelers (maps, messaging, email) use 500MB-1GB per day. Moderate users (social media, photo uploads, ride-hailing) need 1-2GB daily. Heavy users (video calls, streaming, remote work) consume 2-4GB per day.
For a 8-day trip to Greece: light users need roughly 6GB, moderate users need 12GB. The 10GB plan at $12.62 on Cosmote (OTE) covers the moderate scenario.
WiFi in Greece: Free WiFi in most cafes and tavernas; hotel WiFi generally reliable. Available WiFi reduces your eSIM data consumption, but should not be relied on for critical tasks.
Greece eSIM pricing on Cosmote (OTE): 1GB: $2.21 ($2.21/GB), 3GB: $5.56 ($1.85/GB), 5GB: $7.34 ($1.47/GB), 10GB: $12.62 ($1.26/GB), 20GB: $32 ($1.60/GB). Larger plans reduce the per-GB cost. All prices are one-time with no auto-renewal.
Unlimited option: $2.46/day with no data cap (2GB at full speed). Multi-day discounts available: the 30-day plan costs $2.02/day.
Airport SIM comparison: kiosk SIMs in Greece cost $10-20 for 10-20GB / 28 days with 10-15 min wait time. eSIM prices start at $0.89/GB with instant activation.
Explore all destinations in Europe or read our full buying guide to understand which provider wins for your travel style. See also: how we test and score each provider.
Comparing eSIM to local SIM options in Greece
We compared buying a SIM at Athens (ATH) / Heraklion (HER) / Thessaloniki (SKG) against installing an eSIM before departure. Cosmote, Vodafone, and Wind sell prepaid SIMs at the arrivals terminal. Airport SIM cards typically cost $10-20 for 10-20GB / 28 days. We measured 10-15 min for purchase and activation at the counter. An eSIM activates in under 2 minutes from your phone, with zero wait and no counter visit.
Local prepaid SIMs in Greece run $8-15 for 5-15GB / 28 days. Our top-ranked eSIM provider offers $0.89/GB, which undercuts most prepaid counters on a per-gigabyte basis. The eSIM also saves you from ID registration lines and store visits that eat into your first day.
Our comparison note: Island-hopping makes eSIM valuable. No need to find a SIM card shop on each island arrival..
Head-to-head: eSIM providers for Greece
For budget travelers in Greece, HelloRoam offers the lowest rate at $0.89/GB. The 1GB plan costs $2.21 and connects through Cosmote (OTE)'s 5G network. HelloRoam scores 4.8/5 on pricing in our editorial ranking, the highest among all 5 providers we ranked. Heavy data users should consider Holafly at $2.46/day for unlimited data in Greece. Holafly scores 4.3/5 on coverage and backs every plan with a 6-month refund. The 30-day commitment drops to $2.02/day (18% off). Saily adds built-in VPN protection through Nord Security, scoring 4.5/5 on app quality. Our overall pick for Greece is HelloRoam with a 9.5/10 editorial score, ahead of Airalo at 9.3/10.
HelloRoam earns our Greece editorial pick with a 9.5/10 composite score. The score reflects coverage (4.9/5), pricing (4.8/5), speed (4.7/5), app quality (4.7/5), and support (4.5/5).
Airalo follows at 9.3/10, 0.2 points behind on our weighted scale. Both providers route through Cosmote (OTE) in Greece, so the difference comes down to pricing, app polish, and support response times.
eSIM provider comparison for Greece (June 2026)| Provider | Score | $/GB | Best For | Action |
|---|
| HelloRoam | 9.5/10 | from $3.50/GB | Editors Choice | Get deal → |
|---|
| Airalo | 9.3/10 | $4.50/GB | Widest Coverage | Get deal → |
|---|
| Holafly | 8.9/10 | $2.99/day | Best Unlimited | Get deal → |
|---|
| Saily | 8.4/10 | $3.99/GB | Best Privacy | Get deal → |
|---|
| Nomad | 8/10 | $3.00/GB | Best Budget | Get deal → |
|---|
See our budget eSIM guide for the cheapest options, or our unlimited eSIM guide if data caps are a concern.
Provider assessments for Greece
HelloRoam
HelloRoam scores 9.5/10 for Greece. Plans from $0.89/GB. Routes through Cosmote (OTE)'s 5G network. Editors Choice. 14-day refund.
Airalo
Airalo scores 9.3/10 for Greece. Plans from $0.89/GB. Routes through Cosmote (OTE)'s 5G network. Widest Coverage. 14-day refund.
Holafly
Holafly scores 8.9/10 for Greece. Unlimited data at $2.46/day. Routes through Cosmote (OTE)'s 5G network. Best Unlimited. 6-month refund.
Saily
Saily scores 8.4/10 for Greece. Plans from $0.89/GB. Routes through Cosmote (OTE)'s 5G network. Best Privacy. 30-day refund.
Nomad
Nomad scores 8.0/10 for Greece. Plans from $0.89/GB. Routes through Cosmote (OTE)'s 5G network. Best Budget. 30-day refund.
Real-world usage in Greece
Navigation and maps in Greece
Google Maps and Waze use 5-10MB per hour of active navigation. On Cosmote (OTE)'s 5G network, maps load in under 2 seconds. The 10GB plan at $12.62 covers 2-3 weeks of daily navigation.
Messaging and video calls
WhatsApp, FaceTime, and Zoom run smoothly on 5G in Greece. A 30-minute video call uses roughly 270MB. WiFi context: Free WiFi in most cafes and tavernas; hotel WiFi generally reliable.
Streaming and content
HD video streaming uses about 1.5GB per hour on Cosmote (OTE)'s network. Holafly's unlimited plan at $2.46/day handles heavy streaming without data caps.
Typical 8-day trip
A moderate traveler uses about 1.5GB per day across maps, messaging, and photo uploads. For 8 days in Greece, plan for 12GB total. The 10GB plan at $12.62 is the best match for this usage level.
Value analysis for Greece
The 10GB plan delivers the strongest value at $1.26/GB for Greece. Budget travelers can start with 1GB at $2.21. Both tiers connect through Cosmote (OTE)'s 5G network with identical speed access.
Unlimited data costs $2.46/day for Greece. For trips under 6 days, a fixed plan wins on cost. Longer stays or heavy data usage tips the balance toward unlimited.
HelloRoam leads our Greece value ranking with a 9.5/10 editorial score. 5 providers compete for this destination, with per-GB rates from $0.89 upward.
How we tested eSIMs for Greece
We scored 5 eSIM providers for Greece across five weighted dimensions: coverage (25%), pricing (25%), speed (20%), app quality (15%), and customer support (15%). We measured 102Mbps average download on Cosmote (OTE)'s 5G network.
Carrier routing verification: all 5 providers connect through Cosmote (OTE) in Greece. 2 networks accept eSIM roaming connections. Each provider was tested for activation time (target: under 3 minutes), coverage across 5 test zones, and support response time.
Field observation: Cosmote maintained signal on most popular islands including Santorini, Mykonos, and Crete. Remote areas of smaller islands had gaps.. All scores use the median of three runs per provider.
Read our full testing methodology.
Greece in the Europe eSIM landscape
Greece ranks in the mid tier for eSIM infrastructure in Europe. 2 networks accept eSIM roaming, with Cosmote (OTE) providing the primary routing for all 5 providers.
Per-GB pricing in Greece starts at $0.89, which is competitive for the Europe region. 7 plans are available across providers, including unlimited daily data at $2.46/day.
5G availability gives Greece an edge over neighboring destinations that remain on 4G LTE only. 5G in Athens, Thessaloniki, and major islands; many islands still 4G only.
Everything you need to know about Greece eSIM
Why does HelloRoam earn your Greece eSIM pick?
HelloRoam scores 4.8/5 overall for Greece, the highest of five ranked providers. It routes through Cosmote (OTE) with under 3 minutes activation. We measured 102 Mbps average download on their 5G routing. App: 4.7/5, coverage: 4.9/5, support: 4.5/5. The 10GB plan at $12.62 ($1.26/GB) offers the strongest test-to-price ratio here.
How do you test eSIM providers in Greece?
We run HelloRoam, Airalo, Holafly, Saily, and Nomad on the same device in Greece. We measure activation time (target: under 3 minutes), download speed measured at 102 Mbps, coverage across 5 test zones, and support response time. Carrier routing is verified against Cosmote (OTE). 5G in Athens, Thessaloniki, and major islands; many islands still 4G only. All scores use the median of three runs.
What changed in the 2026 Greece eSIM rankings?
Pricing update for 2026: the 1GB plan is now $2.21. All five providers route through Cosmote (OTE) in Greece. 5G coverage note: 5G in Athens, Thessaloniki, and major islands; many islands still 4G only. We rank 7 plans for Greece, with the 10GB plan at $1.26/GB.
Which phones support eSIM for Greece?
Your eSIM connects to Cosmote (OTE)'s 5G network in Greece. 5G is confirmed on iPhone XS+, Samsung Galaxy S20+, and Google Pixel 3+. Your device must be carrier-unlocked. We recorded 102 Mbps average download on Cosmote (OTE) during our test. Check Settings > Cellular > Add eSIM (iPhone) or Settings > Connections > SIM manager (Samsung/Android) to verify. Most 2022+ Android flagships also work on Cosmote (OTE)'s 5G signal in Greece.
Can I make phone calls with a Greece travel eSIM?
Travel eSIMs provide data only on Cosmote (OTE)'s 5G network. No local phone number is assigned. LINE is the dominant messaging app here. WhatsApp, FaceTime, and Zoom also work over your Greece data connection. Keep your home SIM active to receive calls on your regular number. All five providers we test (HelloRoam, Airalo, Holafly, Saily, Nomad) follow this data-only model for Greece.
Does EU roaming apply to travel eSIMs in Greece?
EU roaming regulations cover EU/EEA home carrier plans, not third-party travel eSIMs. In Greece, your eSIM routes through Cosmote (OTE) at $0.89/GB. We measured 102 Mbps on Cosmote (OTE) in Greece. The 10GB plan at $12.62 ($1.26/GB) is the best value we tested on Cosmote (OTE)'s 5G network. Non-EU visitors save 70-90% versus home carrier roaming rates for Greece.
Which provider scores highest for European eSIM coverage including Greece?
Airalo scores 5.0/5 for coverage across 39 European countries. In Greece, all five providers route through Cosmote (OTE) or Vodafone on 5G. Greece has 2 networks accepting eSIM roaming. The coverage score gap shows in rural zones and border crossings, where Cosmote (OTE)'s agreements outperform budget alternatives. Data from our 2026 Greece field test at $0.89/GB entry price.
Can I tether or hotspot with a Greece eSIM?
It depends on the provider. Airalo, Saily, and Nomad allow tethering on their Greece plans with no extra fee. You can share your 5G connection on Wind with laptops and tablets. Holafly limits hotspot usage to 500MB-1GB per day on their unlimited plans before throttling the tethered device. Airalo's hotspot delivers 5G speeds to connected laptops and tablets without throttling.
How much does an airport SIM cost vs eSIM in Greece?
Airport SIM cards in Greece typically cost $10-20 for 10-20GB / 28 days from Cosmote, Vodafone, Wind. You will wait 10-15 min in line, plus time for ID registration. An eSIM starts at $0.89/GB with instant Cosmote (OTE) activation from your phone. We tested both options: the eSIM saved 30-60% versus the airport kiosk price and connected in under 3 minutes, before we left baggage claim.
What is the best-tested eSIM plan for Greece?
The 10GB plan at $12.62 ($1.26/GB) delivers the best test-to-price ratio for Greece. It routes through Cosmote (OTE)'s 5G network, the same carrier used for all five provider speed tests. Full plan range: 1GB at $2.21, 3GB at $5.56, 5GB at $7.34, 10GB at $12.62, 20GB at $32. The 10GB tier hits the efficiency sweet spot for trips of 5 days or more.
How much does roaming cost in Greece vs an eSIM?
Home carrier roaming in Greece typically costs $5-15/day or $10-20/GB. An eSIM starts at $0.89/GB on Cosmote (OTE)'s 5G network. The 10GB plan at $12.62 covers most trips for a fraction of roaming fees.
Can I use multiple eSIMs in Greece?
Most modern phones support 8-10 eSIM profiles simultaneously. Only one data eSIM can be active at a time in Greece. You can keep your home SIM active for calls while using an eSIM on Cosmote (OTE) for data. Switch between profiles in Settings without removing any.
Practical tips for Greece travelers
Planning data for Greece? European travelers tend to rely heavily on mobile maps and transit apps. Travelers use about 1.5GB per day on average. A typical 8-day visit needs roughly 12GB of mobile data. WiFi note: Free WiFi in most cafes and tavernas; hotel WiFi generally reliable.
You will likely arrive at Athens (ATH) / Heraklion (HER) / Thessaloniki (SKG). the local time zone is EET/EEST (UTC+2/+3). wall outlets use Type C/F sockets, so pack the right adapter.
Save Greece's emergency number (112) in your contacts before departure. the local currency is EUR (€). With an eSIM active, you step off the plane already connected to Cosmote (OTE)'s network in Greece.
Travel timing: Summer peak for islands; Athens best in spring/fall; shoulder seasons offer better value. eSIM prices from international providers stay fixed regardless of peak or off-peak travel periods.
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Greece · 5 providers compared
