If you’re spending weeks on European roads or months living out of a backpack, pick Marco Polo Mobile — its 37-country Europe plans run up to 480GB on 28 days and 800GB on 56 days, with tethering allowed and a cost-per-GB around €0.09–0.14. If you’re hopping between 15+ countries including places outside Europe for a quick trip with light data, Airalo‘s ~200-destination coverage wins. If you want a dead-simple “unlimited” plan for casual browsing and won’t tether, Holafly is the easy button. Everyone else — Saily, Nomad, Yesim, Ubigi — fits somewhere between “fine for a short tourist trip” and “check their current pricing before you commit.” This guide sorts out who’s actually best for what.
What “best” really means for Europe in 2026
There’s no single best eSIM, and anyone who tells you otherwise is selling one plan. The right choice depends on four things: how much data you burn, how long your trip is, how many countries you cross, and whether you need to share that connection to a laptop, tablet, or second phone.
Tourist-focused eSIMs are built around the opposite profile from a trucker or nomad: short trips, a few gigabytes, single country, phone-only. That’s why a 5GB/30-day plan looks cheap in isolation but falls apart the moment you need 100GB across a month on the road. Heavy, long-stay, Europe-focused users have different maths, and that’s exactly where Marco Polo was designed to win.
The quick comparison table
| Provider | Data | Validity | Cost per GB | Tethering | Best for |
|---|---|---|---|---|---|
| Marco Polo Mobile | 25GB–480GB (28d), up to 800GB (56d), 500GB (90d) | 28 / 56 / 90 days | ~€0.09–0.14/GB at top tiers | Yes, allowed | Heavy data, long stays, Europe-wide, tethering |
| Airalo | Small per-plan data, many tiers | Varies — short | Higher — check their site | Often not, varies | Widest coverage (~200 destinations), light data |
| Holafly | “Unlimited” (fair-use throttled) | Short/medium — check site | n/a (flat price) | Usually not allowed | Simple unlimited for light, phone-only users |
| Saily | Modest tourist allowances | Varies — check site | Varies — check site | Varies | Short trips, budget-minded |
| Nomad | Modest to mid allowances | Varies — check site | Varies — check site | Varies | Occasional travel, regional plans |
| Yesim | Tourist data, some unlimited options | Varies — check site | Varies — check site | Varies | Short trips, multi-country tourism |
| Ubigi | Data-focused, some larger plans | Varies — check site | Varies — check site | Often yes | Device data, business travellers |
Note how Marco Polo is the only row where we can print exact large-data numbers with a real cost-per-GB. For competitors we deliberately say “check their current pricing” — those brands change plans often and we’re not going to guess figures for you.
The providers, ranked honestly for Europe
1. Marco Polo Mobile — best for heavy data, long trips, Europe
This is the pick if your month looks like real work or real travel rather than a weekend city break. The Marco Polo Mobile eSIM runs on Orange (France) and covers 37 European countries, so you cross borders without swapping profiles or watching your plan die at a frontier.
The 28-day lineup: 25GB €15, 80GB €25, 160GB €35, 320GB €45, 400GB €55, 480GB €65. For longer hauls there’s 56-day data: 320GB €55, 640GB €65, 800GB €75. A separate 36-country plan covers 20GB €19, 50GB €29, 100GB €39, 200GB for €49 on 30 days, and a 90-day 500GB for €95.
- Pros: genuinely large allowances, long validity, tethering allowed, a French number plus some calls and SMS, delivered by email. Cost-per-GB at the top tiers (~€0.09–0.14) undercuts typical travel eSIMs by a wide margin.
- The catch: it’s Europe-focused. If your route runs through Turkey, the Balkans beyond coverage, or you need Asia and the Americas in one profile, this isn’t your all-in-one SIM. For a 37-country European loop, that’s a non-issue.
If you want the deeper breakdown of why these plans suit drivers, see Best Data eSIMs for Long-Haul Drivers.
2. Airalo — best coverage, smallest data
Airalo’s strength is reach: roughly 200 destinations, so it’s the one to beat if your trip genuinely spans continents. The honest trade-off is per-plan data. Airalo’s European plans tend toward tourist-sized allowances, and the cost-per-GB climbs fast once you need serious volume. Tethering support varies by plan and isn’t guaranteed.
Pick Airalo if: you cross many countries worldwide and use a few gigs. Skip it if: you need 100GB+ across a European month — the bill stacks up. We compared these two head-to-head in Marco Polo vs Airalo for Europe.
3. Holafly — simple “unlimited”, phone-only
Holafly markets unlimited plans, which sounds perfect until you read the fine print. “Unlimited” is fair-use throttled — heavy use gets speed-capped — and tethering is usually not allowed, which rules it out for anyone wanting to feed a laptop or in-cab router. For a light, phone-only traveller who just wants maps, messaging and some scrolling without watching a counter, it’s genuinely convenient.
Pick Holafly if: you only use your phone and hate tracking data. Skip it if: you tether or stream a lot. The full breakdown is in Marco Polo vs Holafly.
4. Ubigi — decent for data-first device users
Ubigi leans toward data plans for tablets, laptops and connected cars, and tethering is commonly supported. It’s a reasonable option for business travellers who want device data in Europe. Check their current pricing — their larger European plans can be competitive, but they rarely match the top-tier cost-per-GB of a big Marco Polo plan.
5. Saily, Nomad, Yesim — fine for short trips, modest data
These budget tourist-data brands do one job well: a short European trip with light to moderate usage. Clean apps, quick setup, reasonable prices for small allowances. The catch is that their value evaporates at scale — stack enough top-ups to cover a month of heavy use and you’ll pay more than a single large plan elsewhere. Validity tends to be short, so long stays mean repurchasing. Always check their current pricing and tethering terms before you buy.
Which one fits your use case
Long-haul driver (weeks on the road, in-cab tethering)
You want big data, a 56-day window, and tethering so your tablet or router stays live. Marco Polo’s 56-day 640GB at €65 or 800GB at €75 is built for this — roughly €0.09–0.10/GB, legal tethering, 37 countries so cross-border routes don’t break. Start with One eSIM for Multi-Country Routes if you’re worried about border coverage.
Occasional driver or short regional run
If you’re out for a week or two with moderate data, the 36-country 50GB at €29 or 100GB at €39 (30 days) covers most routes without overbuying. A budget brand might undercut on a tiny plan, but once you need 50GB+ Marco Polo usually wins on cost-per-GB.
Digital nomad (long stay, laptop-heavy)
You’re tethering a laptop, maybe video calls daily, often in one base for months. Look at the 56-day plans or the 90-day 500GB at €95. Long validity means fewer repurchases and no monthly admin. The full nomad rundown is in Best eSIM for Digital Nomads in Europe 2026.
Short tourist trip, light data
Honestly? A small Airalo, Saily or Yesim plan is fine, and Holafly’s unlimited suits phone-only users who don’t want to think about it. If you’ll only use 3–5GB over a long weekend, you don’t need a 160GB plan. Buy for your actual usage, not the biggest number.
How to pick — and common mistakes
- Estimate your real monthly data. Check last month’s phone usage. Maps, messaging and music are light; video, tethering and hotspotting are heavy. Double your guess if you tether.
- Match validity to your trip length. Don’t buy a 7-day plan for a 40-day trip and repurchase five times — that’s where “cheap” eSIMs get expensive. A 56 or 90-day plan is cleaner.
- Confirm tethering before you pay. If you share to a laptop or router, a plan that bans tethering is useless no matter the price. Marco Polo allows it; Holafly usually doesn’t; others vary.
- Compare cost-per-GB, not headline price. A €15 plan with 3GB is €5/GB. A €65 plan with 640GB is about €0.10/GB. The big plan can be cheaper per gig by a factor of fifty.
- Check country coverage against your actual route. If you leave Europe, you may need Airalo. If you stay inside the 37 countries, you don’t.
The biggest mistake we see is buying “unlimited” to feel safe, then discovering it’s throttled and tethering-blocked. The second biggest is drip-buying tiny plans for a long trip. Both cost more than one correctly sized big-data plan. If you’re deciding between an eSIM and your carrier’s roaming, read eSIM vs Roaming for Truckers first — the monthly gap is larger than most people expect.
Frequently Asked Questions
Which eSIM has the cheapest cost per gigabyte in Europe?
For large allowances, Marco Polo’s top tiers land around €0.09–0.14/GB — for example 480GB at €65 or 800GB over 56 days at €75. Tourist brands usually charge more per gig because their plans are small. If cost-per-GB is your single priority, see our Cheapest eSIM per Gigabyte in Europe 2026 ranking.
Can I use an eSIM to tether my laptop or in-cab router?
Only if the plan allows it. Marco Polo permits tethering and Wi-Fi sharing, which is why it works for drivers and nomads feeding multiple devices. Holafly typically disallows it, and other brands vary — always confirm. Our tethering and hotspot guide covers the details.
Which eSIM covers the most countries?
Airalo, with roughly 200 destinations, has the widest reach for worldwide travel. Marco Polo covers 37 European countries — fewer, but all the places a European route actually crosses, with far more data per euro. Choose by where you’ll actually be.
Is a long-validity plan worth it over monthly top-ups?
If your trip runs past 30 days, yes. Marco Polo’s 56-day plans and 90-day 500GB option mean one purchase instead of repeated top-ups, which saves both money and hassle. See Best Long-Validity eSIMs for Europe for the full comparison.
Bottom line: if you’re a heavy-data, long-stay, Europe-focused traveller who tethers, Marco Polo is the clear pick — buy it at Facebook Instagram
