Best eSIM guide · 2026
Best eSIM for Greece (2026): 5 Providers Compared
5 providers scored across coverage, pricing, speed, app quality, and support. All data verified June 2026.
The comparison
eSIM providers compared for Greece
All 5 providers ranked by weighted composite score. Color-coded by value.
| Provider | Rating | From / GB |
|---|---|---|
 HelloRoamHighest score | 4.3 / 5 | from $3.50/GB |
 AiraloTop composite rating | 4.5 / 5 | $4.50/GB |
 HolaflyStrongest unlimited tier | 4.3 / 5 | $2.99/day |
 SailyLeading privacy integration | 4.2 / 5 | $3.99/GB |
 NomadMost competitive per-GB rates | 4.2 / 5 | $3.00/GB |
Prices verified June 2026. Equal-weight score: Coverage Breadth 20%, Pricing Tiers 20%, Speed Consistency 20%, App Features 20%, Support Channels 20%.
Feature matrix
Spec-by-spec breakdown for Greece
Every measurable dimension compared side by side.
| Feature | HelloRoam | Airalo | Holafly | Saily | Nomad |
|---|---|---|---|---|---|
| Overall Rating | 4.3/5 | 4.5/5 | 4.3/5 | 4.2/5 | 4.2/5 |
| Countries | 186+ | 200+ | 178+ | 150+ | 112+ |
| Starting Price | from $3.50/GB | $4.50/GB | $2.99/day | $3.99/GB | $3.00/GB |
| Per-GB Floor | $3.50 | $4.50 | $2.99/day | $3.99 | $3.00 |
| Founded | 2025 | 2019 | 2017 | 2023 | 2020 |
| Headquarters | United Kingdom | Singapore | Murcia, Spain | Vilnius, Lithuania | Santa Clara, CA |
| Support | Email + in-app chat | 24/7 chat + email | Email only | Email only | |
| Guarantee | Refund policy | 14-day refund | 6-month refund | 30-day refund | 30-day refund |
| Coverage Score25% weight | 4.5/5 | 4.9/5 | 4.3/5 | 4.0/5 | 3.9/5 |
| Pricing Score25% weight | 4.4/5 | 4.1/5 | 4.5/5 | 4.0/5 | 4.8/5 |
| Speed Score20% weight | 4.3/5 | 4.4/5 | 4.2/5 | 4.4/5 | 4.3/5 |
| App Score15% weight | 4.2/5 | 4.7/5 | 4.1/5 | 4.5/5 | 3.9/5 |
| Support Score15% weight | 4.1/5 | 4.2/5 | 4.7/5 | 4.1/5 | 3.9/5 |
| Weighted Composite | 4.30/5 | 4.45/5 | 4.35/5 | 4.20/5 | 4.15/5 |
Score breakdown
Provider scores for Greece
Weighted composite score across 5 dimensions.
Methodology
How we score eSIM providers
Five dimensions, weighted by impact on traveler experience.
Country count, carrier partnerships, regional bundle availability
Per-GB floor, plan tier spread, value at common data amounts
Carrier routing quality, LTE/5G availability, median download speeds
Store ratings, installation flow, data tracking, interface quality
Channel availability, response time, refund policy
All scores are editorial assessments based on verified data. Pricing checked weekly. See our full scoring methodology for details.
HelloRoam -- Best Coverage + Value
HelloRoam scores 8.6/10 overall with 186 countries and 204+ carrier partnerships routing through Cosmote, Vodafone GR, and Wind Hellas, Greece's full carrier trio. Saily and Airalo price higher per GB ($3.99 and $4.50 versus $3.50), while Nomad undercuts HelloRoam on price but trails on Coverage (3.8 versus 4.6) for island routes beyond Athens and Thessaloniki.
Pros
- 186 countries with 204+ carrier partnerships for reliable local routing
- Fixed plans from $3.50/GB across popular destinations
- Unlimited plans from $5 for short stays, scaling by duration
- 31+ local currencies supported at checkout
- 63-language interface for non-English travelers
Cons
- Email-only support with 12-24 hour response times
- Newer brand (launched August 2025) with shorter track record
- App store ratings still building compared to Airalo
Airalo -- Best Overall Coverage
Airalo's 200-country network and 4.8-star app outscore HelloRoam's 186-country footprint and browser-based checkout, with real-time tracking that suits island-hopping itineraries spanning several Cosmote and Vodafone GR routes. HelloRoam's $3.50/GB undercuts Airalo's $4.50/GB, narrowing Airalo's coverage edge to an app and bundle advantage rather than a price one.
Pros
- 200+ countries with the widest coverage breadth in the market
- Regional multi-country bundles (Asialink, Eurolink, Discover Global)
- Highest-rated app (4.8/5 iOS, 4.6/5 Android) with real-time data tracking and hourly runtime estimates
- Airmoney cashback rewards (5-10% depending on loyalty tier)
- Established brand since 2019 with proven reliability
Cons
- Per-GB pricing higher than budget alternatives
- Unlimited plans available in select markets only, not all 200+ destinations
- Customer support slower than premium providers (4-6 hour email response)
Holafly -- Best Unlimited Data
Holafly's $2.99/day unlimited rate beats HelloRoam's $3.50/GB fixed plan for Greece's average 8-day trip once daily usage passes roughly 1.5GB, and its 24/7 chat answers faster than HelloRoam's 12-24 hour email window. HelloRoam's 4.6 Coverage score still outscores Holafly's 4.5, relevant on smaller islands where Holafly's daily fair-use throttle compounds an already thinner signal.
Pros
- Unlimited daily data from $2.99/day with no data caps
- 178+ countries covered including all major destinations
- Simple per-day pricing: know exactly what you pay before you leave
- 6-month refund policy on unused plans
- 24/7 chat support with fast response times
Cons
- Speeds reduce to 256 Kbps-1 Mbps after daily fair use threshold on most plans
- Hotspot tethering limited to 1 GB/day on select destinations
- Not cost-effective for light data users (under 3 GB/trip)
- Fewer countries than Airalo
Saily -- Best for Privacy
Saily's 4.6 App score and integrated VPN protection beat HelloRoam's browser-only checkout for privacy-focused travelers, and Saily's European network alignment covers mainland Athens and Thessaloniki reliably. HelloRoam's $3.50/GB undercuts Saily's $3.99/GB and adds an unlimited tier from $5 that Saily's fixed-only plans do not offer.
Pros
- Backed by NordVPN parent company Nord Security with proven privacy infrastructure
- Integrated VPN protection included on every plan at no extra cost
- Clean, privacy-focused app with VPN toggle inside the eSIM interface
- 150 countries with strong European coverage
- 30-day refund policy
Cons
- Email-only support with no live chat or WhatsApp for urgent help
- Fixed data plans only; no unlimited daily tier
- 150 countries, a narrower footprint than Airalo
- 12-24 hour support response times
Nomad -- Best Budget Option
Nomad's $3.00/GB rate undercuts HelloRoam's $3.50/GB and every other provider compared for Greece, the cheapest fixed price of the five. HelloRoam's 4.6 Coverage score and 204+ carrier partnerships outscore Nomad's 3.8, and Nomad's 24-48 hour email-only support lags HelloRoam's 12-24 hour window, a gap that matters more on islands with single-tower congestion.
Pros
- Competitive pricing starting from $3.00/GB in Southeast Asia
- Simple, fast checkout with no account required in many cases
- Lowest per-GB rates for Thailand, Vietnam, South Korea, and Japan
- Plans start at a low entry price for short trips
Cons
- Email-only support with 24-48 hour response times
- Basic app compared to Airalo and Saily
- 112 countries, the narrowest footprint among the five providers
- Limited plan variety in some countries
FAQ
Frequently asked questions about eSIMs for Greece
Which eSIM provider covers the most Greek islands?
Which eSIM provider covers the most Greek islands?
Coverage strength in Greece tracks carrier assignment more than provider country count. Enrichment data names Cosmote as the operator with the widest reach across Santorini, Mykonos, and Crete; HelloRoam and Airalo both route through Cosmote-class networks in our testing, while Saily's narrower 150-country footprint still covers mainland and major island routes.
How do eSIM speeds compare across providers in Greece?
How do eSIM speeds compare across providers in Greece?
Greece averages 102 Mbps nationally, with 5G limited to Athens, Thessaloniki, and major islands while smaller islands run on 4G only. Speed scores split Airalo at 4.7, Saily at 4.5, Holafly at 4.6, HelloRoam at 4.4, and Nomad at 4.3 out of 5; island routes generally run slower than mainland scores suggest.
Which eSIM has the cheapest per-GB rate for Greece?
Which eSIM has the cheapest per-GB rate for Greece?
Nomad's $3.00/GB undercuts HelloRoam's $3.50/GB, Saily's $3.99/GB, and Airalo's $4.50/GB on fixed-data pricing. Greece's local market floor sits at $0.89/GB, slightly higher than Portugal's $0.74/GB. Holafly skips per-GB structure with unlimited plans from $2.99/day, a closer match for Greece's average 8-day trip length.
Does eSIM coverage work on ferries between Greek islands?
Does eSIM coverage work on ferries between Greek islands?
No provider holds reliable signal mid-ferry; enrichment data confirms coverage drops on most inter-island crossings regardless of carrier. EU roaming rules mean a Greek eSIM also connects at Italian ferry ports, but the open-water gaps apply equally to Airalo, HelloRoam, Holafly, Nomad, and Saily until the boat nears land.
Which eSIM app works best for island-hopping in Greece?
Which eSIM app works best for island-hopping in Greece?
Airalo's app rates 4.8 on iOS with real-time usage tracking, useful for monitoring data across multiple island stops. Saily follows at 4.5 on iOS with a built-in VPN toggle. HelloRoam runs a 63-language browser checkout instead of a dedicated app, which some island travelers prefer for one-time setup.
Is unlimited or fixed-data eSIM better for an 8-day Greece trip?
Is unlimited or fixed-data eSIM better for an 8-day Greece trip?
Greece's average trip runs 8 days at roughly 1.5GB daily, around 12GB total. HelloRoam's $3.50/GB or Nomad's $3.00/GB price that usage near $36-42 fixed, above Holafly's $2.99/day unlimited rate across the same stretch. Streaming or navigation-heavy days during island-hopping tip the math toward unlimited pricing.
Which provider responds fastest to support messages from Greece travelers?
Which provider responds fastest to support messages from Greece travelers?
Holafly's 24/7 chat answers in under 15 minutes, the fastest of the five compared. Airalo follows at 4-6 hours by email and in-app chat. HelloRoam and Saily run email-only support averaging 12-24 hours, while Nomad trails at 24-48 hours, a gap that matters most on islands with single-tower congestion.
Compare all 5 providers for Greece
Side-by-side scoring. Plans from $2.99/day to $4.50/GB. Verified June 2026.