Signal is reliable in main hubs like Sulina or Tulcea, but expect the connection to drop to 3G or be lost deep in the remote channels of the Danube Delta biosphere. 

 Yes. The 24pay app is the standard way to buy bus and metro tickets digitally in Bucharest and Cluj-Napoca, requiring an active internet connection to avoid fines. 

 Most modern phones do, but you must check our specific list here: eSIM Compatible Devices to be 100% sure before purchasing. 

 Yes. Coverage is generally available on the famous Transfăgărășan road, but we recommend downloading offline maps for the highest tunnel sections near Bâlea Lake. 

 This specific plan is valid only within Romania (and the EU). This is a critical point. If you take a day trip to Belgrade (Serbia) or Chisinau (Moldova), your connection will stop at the border as they are not in the EU. For a seamless multi-country trip that includes these non-EU neighbors, you must check our Regional or Global eSIM plans. 

 To give you the fastest speed, our eSIM connects to Romania’s premium Tier-1 networks, typically Orange Romania or Vodafone Romania. These operators are famous for providing some of the fastest and most reliable 5G/LTE speeds in all of Europe, ensuring a high-quality connection. 

Yes, 100%. Uber and Bolt are the essential apps for getting around in Bucharest, Cluj-Napoca, and other cities. Our eSIM provides high-speed, low-latency data, which is crucial for ordering a car from Otopeni (OTP) Airport, tracking your ride, and navigating the cities. 

It depends. Romania is in the EU, so "Roam Like at Home" applies only to EU citizens.

• If you are from the UK (Post-Brexit): Most UK carriers (like O2, Vodafone, Three) have reintroduced daily roaming fees.
• If you are from the USA/Canada/Asia: Your home carrier will charge expensive international rates (e.g., $10-$14 per day).

A Cellesim eSIM is a one-time prepaid fee that is significantly cheaper than these roaming charges.