"Unlimited data" — two words every Greek mobile user wants to hear. But how unlimited are the plans that Greek carriers actually sell? Greece's telecom market is dominated by three major players — Cosmote, Vodafone, and Nova — plus a handful of smaller MVNOs. Some offer genuinely unlimited packages, some play fast and loose with the definition, and some don't bother at all. This guide breaks down every plan, every price, every hidden catch — so you can figure out who actually delivers on the unlimited promise.
📖 Read more: Nova 5G: What It Offers in Greece 2026
📊 The Greek Mobile Data Market at a Glance
Before diving into individual plans, it helps to understand where Greece sits on the global mobile data map. The picture is one of gradual improvement — but also one where data remains pricier than in many European neighbors, especially relative to average wages.
Greece ranks 189th out of 237 countries for mobile data affordability — not exactly flattering. At an average of €2.60 per GB, data isn't expensive in absolute terms, but relative to average purchasing power, the average Greek consumer pays disproportionately more. That's precisely why “unlimited” plans generate so much buzz — the alternative (buying data per GB) gets expensive fast.
It's also worth noting that since August 2023, all Greek carriers have shut down their 3G networks entirely. Every data connection now runs over 4G or 5G, which improves speeds but also drives up data consumption — making unlimited plans more relevant than ever.
📱 Cosmote: The Undisputed Unlimited King
Cosmote (a Deutsche Telekom subsidiary) is far and away the carrier with the most unlimited options in Greece. Whether you're a prepaid user or looking for a data-only SIM, Cosmote offers the widest range of plans labeled “unlimited” — and most of them actually live up to the name.
Cosmote — Unlimited Prepaid Plans
| Plan | Data | Duration | Price |
|---|---|---|---|
| GIGA DAY MAX | Unlimited | 1 day (24 hours) | €2.00 |
| GIGA SOUKOU | Unlimited | Weekend (Fri 18:00 – Sun midnight) | €2.50 |
| GIGA WEEK | Unlimited | 7 days | €6.50 |
| DATA AFTER DARK | Unlimited (20:00–08:00) | 30 days | €6.50 |
| Play Now Unlimited | Unlimited streaming | 30 days | €15.00 |
| Mobile Internet 30 days | Unlimited (data-only SIM) | 30 days | €25.00 |
| Mobile Internet 90 days | Unlimited (data-only SIM) | 90 days | €55.00 |
The standout here is Cosmote's Mobile Internet Prepaid line: data-only SIM cards offering genuinely unlimited 4G/5G data. The 30-day plan at €25 works out to just €0.83 per day — excellent value for anyone who needs data on the go, a mobile hotspot, or a secondary connection for a tablet or laptop.
Important Warning
Cosmote's Mobile Internet Prepaid data-only SIMs cannot be used for roaming abroad. If you travel frequently within the EU, these plans won't cover you — you'll need a regular SIM with EU “Roam Like at Home” roaming. This is a critical limitation that many consumers overlook.
The GIGA DAY MAX at €2 is perfect for occasional use — a day trip, a commute without Wi-Fi, a day at the beach. The GIGA SOUKOU at €2.50 covers the entire weekend (Friday evening through Sunday midnight), ideal for binge-watching and social media without worrying about data caps.
📖 Read more: COSMOTE 5G: Setup & Configuration Guide
📲 Vodafone CU: The Budget-Friendly Pick
Vodafone, through its CU brand (targeted primarily at younger users and prepaid customers), offers the CU MONO SCROLL series — an impressive lineup of unlimited plans with aggressively low pricing.
Vodafone CU — MONO SCROLL Plans
| Plan | Data | Duration | Price |
|---|---|---|---|
| CU MONO SCROLL DAY | Unlimited | 24 hours | €0.90 |
| CU MONO SCROLL 4 WEEKENDS | Unlimited | 4 weekends | €2.70 |
| CU MONO SCROLL WEEK | Unlimited | 7 days | €6.00 |
| CU MONO SCROLL NIGHTS | Unlimited (20:00–08:00) | 30 days | €6.50 |
| CU MONO SCROLL MONTH | 9GB only (NOT unlimited) | 30 days | €10.90 |
The CU MONO SCROLL DAY at €0.90 is the cheapest unlimited daily plan in all of Greece — less than half the price of Cosmote's equivalent at €2. Equally impressive is the 4 WEEKENDS plan at €2.70, covering four full weekends — perfect if your data consumption spikes on Saturdays and Sundays.
If you need a monthly unlimited solution, Vodafone CU simply can't deliver. But for occasional use — a day here, a weekend there — CU plans offer unbeatable value for money in the Greek market.
🐸 Frog Mobile & Nova: What Are the Alternatives?
Beyond the two heavyweights, there are alternatives worth considering. Frog Mobile (an MVNO running on Cosmote's network) and Nova (formerly Wind, owned by United Group) round out the picture — with very different results.
Frog Mobile (Cosmote MVNO)
- Unlimited 24h: €2.00
- Unlimited Weekend: €2.50
- Unlimited 7 days: €6.50
Runs on Cosmote's network — same coverage, similar prices. A solid alternative if you want flexibility without committing to a major carrier.
Nova (Free2Go Prepaid)
- Largest plan: 2GB rollover
- Price: €13.60
- Unlimited options: None
Nova offers zero unlimited plans on prepaid. If you want unlimited data, Nova is simply not an option — stick with Cosmote or Vodafone.
Q Mobile (Nova MVNO)
- Q UNLIMITED DATA NIGHTS: €6/month
- Hours: 22:00 – 08:00
- Rest of the day: Standard GB
The only unlimited option in Nova's ecosystem, but limited to nighttime hours. Useful for overnight downloads and updates, but hardly a replacement for a proper unlimited plan.
The picture is crystal clear: Nova is the worst choice if you're after unlimited data in Greece. With a maximum prepaid allowance of just 2GB, it falls dramatically behind the competition. Frog Mobile, on the other hand, leverages Cosmote's network and offers nearly identical unlimited plans — a reliable alternative worth considering.
📖 Read more: MVNOs in Greece: Why Alternative Mobile Operators Don't Exist
⚖️ The Big Comparison: Who Wins?
Let's put all the plans side by side to see which carrier delivers the best value in each usage category.
Unlimited Plan Comparison by Category
| Category | Cosmote | Vodafone CU | Winner |
|---|---|---|---|
| Daily Unlimited | €2.00 | €0.90 | Vodafone CU |
| Weekly Unlimited | €6.50 | €6.00 | Vodafone CU |
| Weekend Unlimited | €2.50 (1 weekend) | €2.70 (4 weekends) | Vodafone CU |
| Nighttime Unlimited | €6.50/month (20:00-08:00) | €6.50/month (20:00-08:00) | Tie |
| Monthly Unlimited | €25.00 (data-only SIM) | — | Cosmote (only option) |
| Streaming Unlimited | €15.00/month | — | Cosmote (only option) |
| 5G Coverage | 80%+ nationally | Expanding | Cosmote |
Bottom line: Vodafone CU wins on short-duration plans thanks to lower prices across the board. Cosmote wins on long-term use, is the only carrier with a true monthly unlimited prepaid option, and has significantly superior 5G coverage.
🔍 Fair Use & Throttling: The Truth Behind “Unlimited”
In telecom, “unlimited” rarely means what you think it means. Nearly every carrier in Greece (and globally) enforces Fair Use Policies (FUP) that indirectly limit your usage, even on plans explicitly marketed as unlimited.
What Fair Use Actually Means in Practice
- Throttling: After hitting a hidden consumption threshold (e.g., 50-100GB), your speed can drop dramatically — from 100 Mbps down to 1-3 Mbps
- Deprioritization: During peak hours, “unlimited” users get pushed to the back of the queue — standard plan users are served first
- Tethering restrictions: Some plans prohibit hotspot use — data only works on your phone's built-in browser and apps
- Time restrictions: Plans like DATA AFTER DARK only apply during specific nighttime hours
- No roaming: Cosmote's data-only SIM packages don't work outside Greece at all
That said, unlimited plans are still absolutely worth it. For the average user consuming 10-30GB per month, the experience genuinely feels unlimited. Fair use caps primarily affect power users — those doing heavy tethering, downloading torrents, or fully replacing their home broadband with mobile data.
📡 5G & Unlimited Data: A New Era
The rollout of 5G in Greece is dramatically changing the unlimited data equation. With speeds reaching 500 Mbps to 1 Gbps under ideal conditions, unlimited data over a 5G connection is a fundamentally different experience compared to 4G.
📖 Read more: Cosmote vs Vodafone vs Nova 2026: Provider Comparison
5G Coverage in Greece
Cosmote leads with 80%+ national 5G coverage and over 90% in Athens. Vodafone and Nova are expanding, but trail significantly. All carriers use 700 MHz (n28), 2100 MHz (n1), and 3500 MHz (n78) frequency bands.
Speed vs. Consumption
On 5G, a single 4K stream burns through roughly 7GB per hour. That means even with an unlimited plan, fair use thresholds can be reached far faster than on 4G. The speed of 5G is a double-edged sword.
5G FWA — Home Internet Alternative
5G FWA (Fixed Wireless Access) contracts offer truly unlimited home internet over 5G — no copper wire needed. If 5G coverage in your area is solid, this can fully replace traditional broadband and is worth serious consideration.
💡 Practical Tips for Consumers
After all this analysis, what's the practical recommendation based on your needs? Here are the most common usage scenarios and which plan fits each one best.
Which Plan Fits You?
- Occasional use (1-2 days/week): CU MONO SCROLL DAY (€0.90) — the cheapest daily unlimited on the market
- Weekend warrior: CU MONO SCROLL 4 WEEKENDS (€2.70) — 4 full weekends at just €0.67 per weekend
- Weekly need: CU MONO SCROLL WEEK (€6.00) or Cosmote GIGA WEEK (€6.50) — small price gap, check coverage in your area
- Night owl: DATA AFTER DARK or CU MONO SCROLL NIGHTS (both €6.50) — ideal for downloads, streaming, and updates
- Full monthly unlimited: Cosmote Mobile Internet Prepaid (€25/30 days) — the only truly unlimited monthly prepaid option
- Long-term commitment: Cosmote Mobile Internet 90 days (€55) — works out to €18.33/month if you commit for 3 months
- Home internet without fixed line: Consider 5G FWA contracts instead of prepaid data SIMs
One crucial point: if the reason you want unlimited data is to replace your home internet, prepaid plans probably won't cut it. Fair use policies, tethering restrictions, and the inability to use them in a router make prepaid unlimited plans suitable only for mobile use. For home internet, look into 5G FWA or fiber — not data-only SIMs.
🔮 What to Expect Going Forward
The Greek market is gradually moving toward more generous data packages. The trend is clear: over the past three years, prices have been dropping steadily while data allowances keep climbing. What can we expect in the years ahead?
The expansion of 5G will push carriers to offer more generous plans — the additional network capacity translates directly into lower cost per GB. Meanwhile, competition among Cosmote, Vodafone, and Nova (plus MVNOs) will continue driving prices down. Nova, which currently offers zero unlimited prepaid options, will either have to introduce comparable plans or watch its market share erode.
The EU “Roam Like at Home” regulation will continue to apply, but fair use caps on roaming data remain lower than domestic allowances — don't expect truly unlimited data across every EU country without strings attached.
Ultimately, the era of paying “per GB” appears to be winding down. Within 3-5 years, the majority of plans are expected to offer such massive data bundles that the distinction between “unlimited” and “limited” will become meaningless. Until then, use this guide to find the best solution for your needs — and always read the fair use terms before you activate anything.