Which eSIM Offers the Fastest Speeds in Europe?

When traveling through Europe — whether hopping between Paris, Rome, Berlin, or Madrid — having fast mobile data can make your trip significantly smoother. From navigation and ride-hailing to streaming videos and attending remote meetings, high-speed internet is a must. In 2025, many eSIM providers support 4G and 5G networks across European countries, but not all deliver the same performance. Here’s a look at how different eSIM choices compare and where RORO eSIM stands among them.

What Determines eSIM Speed in Europe
The actual data speeds you experience on an eSIM depend on several factors:
Local Network Quality: Your eSIM uses partner carriers in each country. In Europe, 5G networks are now widely deployed in major cities and urban centers, delivering significantly higher speeds than 4G. 
Provider Network Agreements: Different eSIM brands piggyback on local operators — for example, Vodafone, Orange, TIM, and Deutsche Telekom — which can affect signal strength and peak throughput.
Plan Type: Some unlimited plans may throttle speed after a daily high-speed cap, while fixed-data plans typically offer full high-speed data until you exhaust the plan. 
Device and Location: Newer phones like iPhone and Samsung flagship models with 5G support will naturally show higher speeds compared to older devices, especially in 5G-ready urban areas.

Top eSIM Options for Fast European Data
Below are some commonly chosen eSIM providers, each with different strengths in speed and coverage.
Ubigi & Roamless (High Theoretical Speeds)
Independent performance tests and comparisons of travel eSIMs in Europe show that some providers such as Ubigi and Roamless have recorded exceptionally high peak speeds — in some cases around 800+ Mbps in strong 5G areas. 
 These providers leverage robust network access in countries like Portugal and France, where 5G infrastructure is very strong.
However, top peak speeds don’t always translate to the best all-around experience in every city or rural area.

Airalo & Other Global Marketplace Providers
Platforms like Airalo offer a mix of regional and country-specific eSIM plans that tap into major European 4G/5G networks. While they may not hit the highest theoretical peaks seen in dedicated tests, many users find consistent real-world speeds suitable for navigation, streaming, and social use throughout Europe.

Where RORO eSIM Fits In
RORO eSIM may not be highlighted in third-party speed testing articles as the #1 fastest eSIM, but it still delivers reliable performance across Europe and is a solid choice for many travelers. Here’s how RORO compares:
Broad Multi-Country Coverage
RORO’s Europe eSIM plans cover multiple countries in one plan — including popular destinations like France, Germany, Italy, Spain, and the Netherlands — without switching SIMs. 
This means consistent connectivity as you move through borders.
High-Speed 4G/5G Networks
RORO connects via strong local networks that support 4G/LTE everywhere and 5G in major urban centers. When in cities with 5G available, users benefit from faster upload/download rates similar to other premium eSIMs. 
Flexible Plans, Installed Before Travel
One advantage of RORO is convenience: install plans before departure, enable upon arrival, and automatically connect to high-speed networks without having to shop for local plans or deal with multiple carriers across countries. 

Speed Tradeoffs to Know
Unlimited-style Plans: Many providers, including RORO, offer “unlimited” plans that come with daily fair-use caps. After exceeding a certain high-speed threshold (e.g., ~3 GB/day), speeds may slow to conserve network resources. 
Real-World vs. Peak Tests: While providers like Ubigi and Roamless show very high peak speeds in some tests, real travel scenarios involve varying coverage, device performance, and network congestion — where all major eSIMs (including RORO) typically perform well for everyday mobile use.
Urban vs Rural: 5G speeds are usually best in cities and metro areas; rural parts of Europe may still be primarily on strong 4G networks.

So, Which eSIM Is Fastest?
There’s no single definitive answer — the fastest eSIM in Europe depends on where you travel and what you need:
Peak performance tests often show brands like Ubigi or Roamless topping charts in certain cities. 
 Broad everyday use (navigation, messaging, streaming) is well supported by multi-region eSIMs like RORO eSIM, Airalo, and other regional providers.
 Best overall balance of speed, coverage, and ease often goes to plans that use major local networks (Vodafone, Orange, TIM) with 5G support — which RORO includes in its Europe eSIM plans.