Romania eSIM Guide 2026: Transylvania, Bucharest and Europe's Fastest Internet
Bran Castle, painted monasteries and the Transfăgărășan — how much data you need in Romania, and why its networks are better than you expect.
Romania has a reputation among travelers for being rustic and among engineers for having outstanding internet. Both are true, and the second is very good news for visitors.
Short answer: 3–5 GB covers a week in Romania. Romania consistently ranks among Europe's fastest and cheapest for mobile and fixed internet, with strong coverage even in small towns. It is in the EU roaming zone.
Why Romania surprises people
Romanian networks are genuinely excellent — dense 4G/5G, high speeds and low domestic prices. Coverage extends well into the Carpathian valleys and small Transylvanian towns. The gaps are mountain passes and forest interiors, not villages.
eSIM vs local SIM vs roaming
| Travel eSIM | Local Romanian SIM | EU roaming | |
|---|---|---|---|
| Setup | At home, 2 minutes | Shop visit | None |
| Cost | flat prepaid price | very cheap, huge data | Free on EU plans |
| Works on arrival | Yes | After the shop | Yes |
| Non-EU visitors | Best option | Possible | Expensive |
How much data do you need?
- Bucharest city break: 1–3 GB.
- A week touring Transylvania: 3–5 GB.
- Road trip with navigation and streaming: 8 GB+.
Apps to download before you land
- CFR Călători for trains (slow but scenic).
- Bolt — dominant for rides in Romanian cities.
- Google Maps offline for the Transfăgărășan and Apuseni mountains.
- Google Translate with the Romanian pack.
Set up before you fly
- Buy a Romania eSIM sized to your trip.
- Install it at home — see the install guide.
- Land, enable the eSIM and turn on Data Roaming.
Romania eSIM FAQ
Is internet really that good in Romania? Yes — it regularly ranks near the top of European speed tables.
Is there coverage in Transylvania's villages? Generally yes. Mountain passes are the exception.
How much data for a week? 3–5 GB.
Is Romania in EU roaming? Yes.
The bottom line
Romania combines low prices, big landscapes and genuinely fast networks. Install a Romania eSIM before you fly.
EU roaming note: this country is in the EU/EEA roaming zone, so an EU home plan usually covers you under "roam like home". Everyone else should use an eSIM rather than pay international roaming.