Orange vs Vodafone vs Telekom, what the Transfagarasan's tunnel and switchbacks do to signal, and how far coverage reaches once you're out on the Danube Delta's reed channels.
Networks
Orange · Vodafone · Telekom
Best network
Orange — widest coverage, best in the mountains
Currency
RON (Romanian leu)
Standout fact
Bucharest's Palace of Parliament is the heaviest building on Earth
A bigger trip than the Dracula photo suggests
Most first-time visitors come for Bran Castle and stop imagining the rest. Bucharest alone is worth slowing down for — Belle Époque boulevards that earned it the old nickname "Little Paris," plus the Palace of Parliament, widely cited as the heaviest building on Earth and second only to the Pentagon in floor area. From there Transylvania's fortified Saxon towns, the Carpathians' brown bear population (the largest in Europe outside Russia), one of the most photographed mountain roads anywhere, and a river delta where the only way between villages is by boat all sit within a few hours of each other. It's a bigger and more varied country than the vampire-castle photo implies, and the network holds up well across most of it — the Danube Delta's reed channels being the honest exception.
Romania isn't in the Eurozone — the leu is not the euro
Romania has been in the EU since 2007 and joined Schengen's land borders in 2024, but it still prices everything in the Romanian leu (RON), not the euro — a common trip-up for visitors coming from the rest of the region. It has no bearing on eSIM pricing (that's set in USD/EUR/GBP regardless of destination), but it's worth knowing before assuming a menu price or taxi fare is quoted in euros.
Orange vs Vodafone vs Telekom
Network
Strengths
Best for
Orange
Romania's largest operator by coverage footprint, first to launch 5G commercially, and the broadest rural and mountain reach of the three
Any trip that leaves Bucharest for the Carpathians, the coast, or smaller towns
Vodafone
Dense, fast urban 4G/5G in Bucharest, Cluj-Napoca, and other major cities, backed by the pan-European Vodafone network
Dense, reliable coverage across Lipscani's Old Town, the Palace of Parliament, and the wider city. A rare dropped bar inside the Palace's thickest wings, back to full strength the moment you're outside.
Brasov & Bran Castle
Brasov's old town and the drive out to Bran Castle both carry strong 4G — it's one of the most visited stretches in the country and the networks build out accordingly.
Sighisoara citadel
The small medieval walled town, birthplace of Vlad the Impaler and the model for a fair share of the Dracula legend, holds solid coverage despite its size.
The Transfagarasan
The lower switchbacks and the towns bookending the road hold decent 4G. The high alpine stretch near Balea Lake and the ridge tunnel drop out, and signal doesn't fully return until you're back down in the valley.
Carpathian Mountains & bear-watching hides
Away from the ski towns, hiking trails and bear-watching hides near Zarnesti thin out to patchy or no signal — genuine wilderness, home to Europe's largest brown bear population outside Russia.
Danube Delta
Tulcea, the delta's gateway city, has coverage as reliable as any Romanian town. Out on the water toward Sulina and the smaller boat-only villages, the reed channels and low population make this the trip's genuine dead zone.
Black Sea coast (Constanta, Mamaia)
The summer resort strip carries dense coverage in season — hotels, boardwalks, and beach clubs, not a remote stretch of coastline.
Bucovina painted monasteries
The UNESCO monasteries around Suceava sit in decent-sized villages with reasonable 4G. The rural roads connecting one monastery to the next are where coverage gets noticeably thinner.
How much data do you need in Romania?
Most first trips stay in Bucharest and Transylvania, so data needs stay modest unless the itinerary reaches the Transfagarasan, the deeper Carpathians, or the Danube Delta. Maps, day-trip navigation, and photos of the castles or the mountain road account for most of it.
Trip type
Recommended data
Long weekend in Bucharest
2–3 GB
Week including Brasov, Bran Castle, Sighisoara
5–8 GB
Week including the Transfagarasan or Carpathian hikes
8–12 GB
Danube Delta boat trip add-on
Add 2–3 GB buffer
Remote work / digital nomad
30–50 GB per month
A Romania eSIM won't follow you into Moldova, Serbia, or Ukraine
Iasi and Timisoara both sit close enough to Moldova and Serbia that a day trip across the border is a common add-on. A single-country Romania eSIM stops working the moment you cross either way, since neither is in the EU roaming zone — plan on a separate local plan or a regional Europe eSIM if the itinerary genuinely leaves Romania.
Frequently asked questions
Does eSIM work in Romania?
Yes — Orange, Vodafone, and Telekom all issue eSIMs, and Orange was the first to switch on 5G commercially. Coverage is solid across the country's cities, main routes, and most tourist sites.
Orange vs Vodafone — which should I pick?
Orange is Romania's largest operator with the broadest rural and mountain reach, so it edges ahead once a trip leaves Bucharest for the Carpathians or the countryside. Vodafone is a strong pick for a city-only itinerary, with dense fast coverage in Bucharest and Cluj-Napoca.
Is there signal on the Transfagarasan?
The lower switchbacks and the towns at either end hold decent 4G. The high alpine section near Balea Lake and the ridge tunnel drop out, and coverage doesn't fully return until you're back down in the valley.
What about the Danube Delta?
Tulcea has coverage as reliable as any Romanian town. Once you're out on the water toward Sulina or the smaller villages, the reed channels make this the trip's genuine dead zone.
How much data do I need in Romania?
A long weekend in Bucharest needs 2-3 GB. Add Brasov, Bran Castle, and Sighisoara and it runs 5-8 GB for a week. Building in the Transfagarasan or Carpathian hikes pushes that to 8-12 GB, mostly from offline maps on the days with weaker mountain signal.