What is an eSIM and how does it work?
An eSIM (embedded SIM) is a small digital chip already built into your phone. Instead of inserting a plastic SIM card, you download a mobile data plan directly to your device by scanning a QR code or using the provider’s mobile app.
Once activated, your phone connects automatically to local networks (in Spain that means Vodafone, Orange, Yoigo, or Telefónica) giving you instant 4G or 5G coverage without visiting a store.
Because the eSIM is stored digitally, you can:
- Install multiple profiles (for different countries or trips)
- Switch plans instantly without swapping SIM cards
- Keep your home number active while using local data
- Top up online through the app whenever you need more data
It’s the fastest, easiest way to stay connected when traveling through Spain or across Europe.
What’s better for Spain: eSIM or local SIM card?
For most travelers, an eSIM is the better choice in Spain because it’s faster to set up, easier to manage, and works the moment you land. You can install it before your flight, skip the shops, and start using data instantly.
Local SIM cards from providers like Movistar, Orange, or Vodafone can be cheaper for long stays, but you’ll usually need to show ID and visit a store in person.
Choose an eSIM if you want:
- Instant activation on arrival
- Flexible plans you can top up online
- Coverage across Spain and other EU countries
Choose a local SIM if you plan to stay long-term and need a Spanish phone number for banking or government paperwork.
In short, eSIMs suit most nomads and travelers, while local SIMs are better for residents or anyone needing a permanent number.
Best eSIMs for Spain in 2025: Ubigi vs Holafly
The best eSIM for Spain depends on your data needs and travel style. Below is a comparison of two trusted providers, Ubigi and Holafly, both offering strong nationwide coverage, fast setup, and reliable connections across mainland Spain and the islands.
Ubigi: Best for flexible data
Ubigi connects to Yoigo and Orange Spain, giving you stable 4G and 5G speeds even in smaller towns and coastal areas. Setup is fast through the Ubigi app, which also lets you top up, track data in real-time, and reuse your eSIM in 200+ destinations worldwide.
Why Ubigi works well in Spain:
- Connects to multiple local networks for consistent coverage
- Instant setup via app or QR code
- Plans start at US$12 for 10 GB (30 days)
- Flexible data options (from short trips to monthly plans)
- Can be reused for other countries after your trip
- Supports hotspot and tethering
- Exclusive discount code for your first purchase
Holafly: Best for unlimited data
Holafly is a great option if you prefer unlimited data and want to get online quickly. It runs on Vodafone and Orange, providing reliable 4G and 5G coverage in most cities, islands, and tourist areas. Activation takes just a few minutes via QR code, no app required.
Why travelers choose Holafly:
- Unlimited-style data across Spain
- Fast QR-code activation before you arrive
- Uses top national networks for stability
- Ideal for short trips or digital nomads on the go
- Pay by day from US$2.5 per day (based on the 30 day plan)
- 24/7 multilingual support
Both providers are safe choices for Spain, easy to install, and trusted by frequent travelers. The best eSIM for your trip depends on whether you prefer flexible data options (Ubigi) or unlimited simplicity (Holafly). If you’d like to explore other providers beyond Ubigi and Holafly, check out our full eSIM providers for Spain directory.
How to choose the right eSIM for your Spain trip
Choosing the right eSIM in Spain mainly depends on how long you’re staying and how you use your data. Most travelers are fine with 3–5 GB per week for maps, messages, and remote work tools, but if you stream or use hotspot mode often, a larger plan makes sense.
Consider these factors before buying:
- Device compatibility: iPhones XR and newer, most Androids, and recent Google Pixel models support eSIMs.
- Data needs: Pick a smaller plan for short trips or a flexible monthly plan if you’ll stay longer.
- Coverage: Choose providers connected to Vodafone, Orange, Yoigo, or Telefónica for strong nationwide service.
- Support options: A provider with clear guides or live chat is helpful if you’re new to eSIMs.
- Travel plans: Some eSIMs (like Ubigi) also work across 200+ destinations, ideal if you’re exploring Europe after Spain.
In short, go for Ubigi if you value affordable prices and flexibility, or Holafly if you prefer unlimited data.
How do you set up an eSIM in Spain?
Setting up an eSIM in Spain is quick and can be done before you even arrive. Most providers send a QR code by email or let you install the eSIM directly through their mobile app. Once it’s downloaded, activation starts automatically when your phone connects to a Spanish network.
Quick setup steps:
- Check compatibility: On your phone, go to Settings → Mobile Network → Add eSIM to confirm support.
- Buy your plan: Choose a provider like Ubigi or Holafly and complete the purchase online.
- Install the eSIM: Scan the QR code or use the provider’s app to add the data plan.
- Activate on arrival: Turn on mobile data once you land in Spain to start your plan.
- Manage your plan: Use the app or web portal to top up or track usage during your trip.
The whole process takes just a few minutes, and you’ll be connected as soon as you step off the plane.
Final recommendation: Which eSIM is best for Spain?
Both Ubigi and Holafly are excellent choices for staying connected across Spain in 2025.
👉 Choose Ubigi if you want affordable data, flexible plans, and EU-wide coverage. It’s ideal for digital nomads who work remotely or travel between countries.
👉 Go for Holafly if you prefer unlimited-style data and want a quick, no-hassle setup that works right after scanning your QR code.
If you’re planning a longer stay under the Spain Digital Nomad Visa or just want peace of mind while traveling, don’t forget to check our full guide on digital nomad insurance in Spain for coverage and healthcare options.
