O2 Espana review
Updated September 28, 2026 · NomadCue Editorial Team · Facts checked September 26, 2026
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Our verdict
O2 Espana sells carrier plans, not travel eSIMs, so it suits anyone already on its home network who wants a single plan for trips abroad. Plans start at €5, run on Telefónica with 5G, and carry a fair use policy instead of a fixed travel data allowance.
Key facts
- Best for
- One home plan with EU roaming included, starting at €5.
- Price from
- €5↗
- Unlimited data
- No↗
- 5G
- Yes↗
- Fair use policy
- EU roaming included with reasonable use at no extra cost; from 18 October 2026 mobile plans get a Zone 1 GB cap that depends on the plan, then 1.21 EUR/GB↗
- Networks
- Telefónica↗
- Seller type
- Carrier↗
- Legal entity
- Telefónica de España, S.A.U. and Telefónica Móviles España, S.A.U.↗
- Headquarters
- Spain↗
- Support channels
- Chat, Email, Help-centre, Phone↗
- Region
- Global
- Features
- 5G, Carrier plan
- Audience
- Short trips, Long trips
- Official website
- o2online.es
Facts checked September 26, 2026, 4 sources
Pros and cons
Pros
- EU roaming is included at no extra cost with reasonable use under the fair use policy.
- Runs on Telefónica with 5G, so home phones behave the same on a trip.
- Help is available on chat, email and help centre.
- The plan is pitched at short trip and long trip travellers.
Cons
- Unlimited data is not part of the offer, so heavy users sit inside fair use limits.
- A fair use policy caps data in the first roaming zone, with usage past that point billed per GB.
- As a carrier plan from an operator headquartered in Spain, it is built around an existing home line.
Who it suits
- Existing O2 Espana customers who want EU roaming on the same bill
- 5G users on the Telefónica network
- People taking short trip and long trip trips who prefer one carrier plan
Who should look elsewhere
- Travellers who want unlimited data: Zwitchy offers it.
- Price-first buyers: eSIMGo.is starts at $0.99.
- Holiday buyers after a prepaid travel SIM: SimToIsrael starts at $25.
Where it works
O2 Espana runs on one network, Telefónica, so coverage abroad comes from roaming rather than a list of partner carriers. The plan is listed as global, and 5G is supported, so phones that handle 5G at home should behave the same way on a trip.
The company behind it
Behind the brand sit Telefónica de España and Telefónica Móviles España, and the company is headquartered in Spain. Help is available on chat, email and help centre, so questions about a roaming bill or a fair use cap can go to a person as well as a help centre.
How O2 Espana compares
9.0 vs 9.3
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9.0 vs 9.5
9.0 vs 8.0
9.0 vs 9.2
9.0 vs 9.0
9.0 vs 8.9
9.0 vs 9.5
9.0 vs 8.5
9.0 vs 9.3
9.0 vs 8.9
9.0 vs 8.8
9.0 vs 9.2- 9.0 vs 9.6
- 9.0 vs 9.5
9.0 vs 9.5
9.0 vs 9.3
9.0 vs 9.3
9.0 vs 9.2
9.0 vs 9.2- 9.0 vs 9.2
9.0 vs 9.1- 9.0 vs 9.1
- 9.0 vs 9.1
9.0 vs 9.0
9.0 vs 8.8- 9.0 vs 8.7
9.0 vs 8.6
9.0 vs 8.6
Where O2 Espana is available
- Available
- Spain
Countries from the brand (Source, checked September 26, 2026)
Frequently asked questions
How much does O2 Espana cost?+
Plans start at €5. That entry point sits above the €5 site median, and the price ranks 149 of 313 compared brands, so the value depends on what is already on the bill.
Is data unlimited on O2 Espana?+
No. Unlimited data is not included, and use sits under a fair use policy: EU roaming is included at no extra cost with reasonable use, while mobile plans face a cap in the first roaming zone before data is charged per GB. Its short trip and long trip focus fits ordinary travel use.
Does O2 Espana work outside Spain?+
It is a Spanish carrier plan, so abroad you rely on roaming on Telefónica rather than a local eSIM. The plan is listed as global, and 5G is supported, so a phone that handles 5G at home will do the same on most visits.
How do I get help with a roaming charge?+
Contact runs through chat, email and help centre, so a question about a roaming bill or a fair use cap can go by phone, chat, email or the help centre. The legal entities behind the brand are Telefónica de España and Telefónica Móviles España.
Do I need an eSIM to use O2 Espana?+
It is listed as a carrier rather than a travel eSIM, so it runs on the home network line instead of a downloaded profile. Anyone comparing entry prices for a single trip may find $0.99 a lighter starting point.
Who is O2 Espana for?+
It suits people already on the operator's home network who want short trip and long trip travel covered in the same plan, plus 5G users on the Telefónica network. Travellers who want unlimited data will need a different provider, such as Zwitchy.
Sources
- o2online.es checked September 26, 2026
Backs: Features, 5G, Networks, Price from, Unlimited data
“5€/mes Novedad 15GB Llamadas ilimitadas”
- o2online.es/aviso-legal checked September 26, 2026
Backs: Headquarters, Legal entity
- o2online.es/ayuda/tarifas-roaming checked September 26, 2026
Backs: Audience, Fair use policy, Region, Seller type
- o2online.es/contacto checked September 26, 2026
Backs: Support channels
Compiled from 4 source pages, checked September 26, 2026. We did not open an account.
Not confirmed yet: Price per GB from, Countries covered, Hotspot sharing.