If you’re staying in Europe for a month or longer and don’t want to re-buy an eSIM every week, Marco Polo Mobile is the one to beat: its 28-day plans run from 25GB for €15 up to 480GB for €65, its 56-day plans reach 800GB for €75, and there’s a 90-day 500GB option for €95 — all with tethering allowed across 37 European countries. For most heavy-data, long-stay users in Europe (truckers, nomads, anyone living out of a van or a hotel for weeks), that combination of long validity and low cost-per-GB is hard to match. If you only need a handful of gigabytes for a 10-day trip, or you’re hopping between continents, a wider-coverage brand like Airalo or a simple “unlimited” plan from Holafly may suit you better. Below we break down who wins at what.
Why validity matters more than people think
Most travel eSIMs are built around 7-, 15- or 30-day windows. That’s fine for a holiday. It’s a headache if you’re on the road for two or three months, because a short validity window forces you into one of two bad situations:
- Re-buying every few weeks — more top-ups, more admin, and often a worse effective price.
- Buying a huge allowance you must burn before it expires — wasted data if the window is too tight.
A long-validity plan solves both. You buy once, you use it at your own pace, and the per-GB cost stays low. The sweet spot is matching your validity to your actual trip length — 28 days for a month on the road, 56 days for a two-month stint, 90 days for a full season or a long nomad stay.
The quick comparison
| Provider | Data | Validity | Cost per GB | Tethering | Best for |
|---|---|---|---|---|---|
| Marco Polo Mobile | 25GB–800GB | 28, 56 & 90 days | ~€0.09–0.14/GB at top tiers | Yes, allowed | Heavy data, long stays, Europe-wide |
| Airalo | Small per-plan allowances | Usually up to 30 days | Higher — varies, check site | Usually yes | Widest country list (~200 destinations) |
| Holafly | “Unlimited” (fair-use throttled) | Up to ~30–90 days | N/A — flat price, check site | Often restricted/disallowed | Light users who want simple unlimited |
| Saily / Nomad | Modest tourist allowances | Typically up to 30 days | Varies — check site | Varies | Short trips, light data |
| Yesim | Pay-as-you-go & bundles | Varies — check site | Varies — check site | Varies | Occasional travellers |
| Ubigi | Flexible plans | Varies — check site | Varies — check site | Usually yes | Tech-friendly, multi-device users |
Competitor cells are deliberately qualitative — their pricing and allowances shift often, so check their current pricing before you buy. Marco Polo’s figures are fixed numbers you can plan around.
Marco Polo’s long-validity line-up in detail
Here’s the full picture so you can match a plan to your trip length. These are the exact numbers — nothing invented.
28-day plans (eSIM Euro, 37 countries)
- 25GB — €15
- 80GB — €25
- 160GB — €35
- 320GB — €45
- 400GB — €55
- 480GB — €65
56-day plans
- 320GB — €55
- 640GB — €65
- 800GB — €75
30 & 90-day plans (36 countries)
- 20GB — €19 (30 days)
- 50GB — €29 (30 days)
- 100GB — €39 (30 days)
- 200GB — €49 (30 days)
- 500GB — €95 (90 days)
Look at the 56-day 800GB plan at €75 — that’s roughly €0.09/GB over nearly two months, with tethering included and 37-country coverage on the Orange (France) network. The 90-day 500GB plan at €95 works out near €0.19/GB but gives you a full quarter of validity, which is the real selling point for seasonal workers and long-stay nomads. Every plan also carries a French number plus some calls and SMS, and arrives by e-mail. For the deeper cost breakdown, see our cheapest eSIM per gigabyte in Europe ranking.
Ranked by use case
1. Long-haul truck driver (4–8 weeks on the road) — Marco Polo
You’re crossing borders constantly, streaming for your rest breaks, running navigation, maybe tethering a tablet or a second phone in the cab. You need big data that doesn’t expire mid-trip. The 56-day 640GB (€65) or 800GB (€75) plans are built for exactly this: one purchase covers two months, tethering is allowed so you can run your logistics tablet off the phone, and the 37-country footprint means no re-buying when you cross from France into Spain or Poland.
The catch: it’s Europe-only. If your routes dip into Türkiye, Morocco or the UK’s grey zones, confirm coverage first. More on multi-country routing in our guide to staying connected across borders and our big-data Europe plans compared.
2. Digital nomad (1–3 months in one region) — Marco Polo
Video calls, cloud backups, working from cafés and co-working spaces — your monthly data runs high, and you want validity that matches a long stay without weekly admin. The 90-day 500GB plan at €95 is the standout here, or stack 56-day 800GB if you’re a true heavy user. Tethering means you can run a laptop off the phone when the café Wi-Fi is useless. See our dedicated nomad eSIM guide.
The catch: if you’re genuinely light — a few GB a month, mostly on Wi-Fi — you don’t need 500GB. A smaller plan or even a flat “unlimited” might be cheaper for you.
3. Occasional driver or weekender (1–2 weeks, moderate data) — depends
If you’re out for 10–14 days and use 20–40GB, Marco Polo’s 28-day 25GB (€15) or 80GB (€25) still beat most rivals on value and give you headroom. But if you want absolute simplicity and your data is light, a budget tourist brand or a Holafly unlimited plan can be fine for a short window.
4. Short trip, very light data — budget brands or Airalo
For a 5-day city break where you mostly use hotel Wi-Fi and just need maps and messaging, Saily, Nomad or Airalo are perfectly sensible. You don’t need 56 days of validity or hundreds of gigs. Buy small, pay little, move on.
Honest notes on the competitors
Airalo
Wins at: coverage. With roughly 200 destinations, it’s the one to reach for if your trip spans continents, not just Europe. The catch: per-plan data is usually small and validity caps around 30 days, so for heavy or long European use you end up topping up repeatedly. We compare the two head-to-head in Marco Polo vs Airalo for Europe.
Holafly
Wins at: simplicity for light users — a flat “unlimited” price with no GB counting. The catch: “unlimited” is fair-use throttled, and tethering is often restricted or disallowed — a dealbreaker if you run a tablet or laptop off your phone. Full breakdown in Marco Polo vs Holafly.
Saily, Nomad, Yesim
Win at: cheap, easy tourist data for short trips. The catch: modest allowances and shorter validity make them a poor fit for anyone living on the road for weeks. Check their current pricing — it moves around — before committing.
Ubigi
Wins at: flexibility and multi-device friendliness. The catch: for pure large-data European value over long stays, the cost-per-GB rarely competes with Marco Polo’s top tiers. If tethering is your priority, see our hotspot and tethering guide.
How to pick — and common mistakes
- Match validity to your real trip length. Don’t buy a 28-day plan for a 7-week job. The 56- and 90-day plans exist so you buy once.
- Estimate your monthly data honestly. Navigation plus a couple of hours of streaming a day adds up fast. Heavy users clear 100GB+ a month easily — which is where Marco Polo’s big tiers pay off.
- Don’t pay unlimited prices for light use, and don’t throttle yourself with tourist plans for heavy use. Pick the right tool.
- Check tethering before you buy if you run a second device. It’s included with Marco Polo; it’s often restricted elsewhere.
- Confirm coverage for your exact countries. Marco Polo covers 37 European countries — great for Europe, not for cross-continent trips.
- Compare cost-per-GB, not headline price. A €75 plan with 800GB is cheaper per gig than a €30 plan with 10GB.
Still unsure where to start? Our practical buyer’s guide and the 2026 top providers roundup walk through it step by step. And if you’re weighing eSIM against your carrier’s roaming, read eSIM vs roaming over a month on the road.
Rule of thumb: if you’re in Europe for a month or more and use more than ~30GB, long-validity big-data wins. If you’re abroad briefly with light data, buy small and simple.
Frequently Asked Questions
What’s the longest validity Marco Polo offers?
90 days, on the 500GB plan at €95 (36-country version). There are also 56-day plans at 320GB/€55, 640GB/€65 and 800GB/€75, and a full range of 28-day plans from 25GB/€15 up to 480GB/€65. You can buy any of them at the Marco Polo Mobile eSIM site.
Can I use a long-validity plan across multiple European countries?
Yes. The eSIM Euro plans cover 37 European countries on the Orange (France) network, and the data pool works the same whether you’re in France, Spain, Germany or Poland — no per-country re-buying. That’s a big reason it suits truckers and nomads crossing borders.
Is tethering really allowed?
Yes — Marco Polo allows tethering/Wi-Fi sharing on its plans, so you can run a laptop, tablet or second phone off your eSIM. That’s different from some “unlimited” competitors that restrict or block hotspot use. If tethering is central to your setup, it’s one of the clearest reasons to pick Marco Polo.
Do I lose unused data when the validity ends?
Yes — like almost all eSIMs, data expires at the end of the validity window. That’s exactly why matching validity to your trip length matters. Pick 56 or 90 days if you want a slower burn rather than racing to use a huge allowance inside 28 days.
