Looking for the best mobile phone plans in Ireland for 2026 with unlimited data that won't break the bank? You’re in the right place. We’ve compared the top networks and MVNOs to find the cheapest unlimited data deals, covering everything from SIM-only plans to bill pay options. Whether you want 5G, EU roaming, or just the lowest monthly cost, here’s what you need to know.
Quick Comparison: Top 10 Unlimited Data Plans in Ireland 2026
- GoMo: €14.99/month, unlimited data, Eir network, 5G, EU roaming, SIM-only
- 48: €12.99-€14.99/month, unlimited data, Three network, 5G, EU roaming, SIM-only
- Clear Mobile: €14.99/month, unlimited data, Vodafone network, limited 5G, EU roaming, SIM-only
- Tesco Mobile: from €7.99/month, unlimited data, Three network, 5G, EU roaming, SIM-only
- Three Bill Pay: €20-€45/month, unlimited data, Three network, leading 5G, EU roaming
- Vodafone Bill Pay: €20-€50/month, unlimited data, Vodafone network, leading 5G, EU roaming
- Eir Bill Pay: €20-€40/month, unlimited data, Eir network, 5G, EU roaming
- Three Prepay: €20/month, unlimited data, Three network, 5G, EU roaming
- Lycamobile: €10/month, large data allowances, network details vary, EU roaming
- Virgin Media Mobile: €15/month, unlimited data, network details vary, EU roaming
1. GoMo – Best Budget Unlimited SIM-Only Plan on Eir Network
GoMo offers an unlimited data SIM-only plan at €14.99 per month. It runs on the Eir network and supports 5G connectivity. This plan includes EU roaming under Roam Like At Home, letting you use your data allowance reasonably across the EU. No contract is required, making it flexible for those who want to avoid long commitments.
Pros: Very affordable unlimited data, 5G available, no contract, EU roaming included.
Cons: Operates on the Eir network, which some debate has less coverage than Three or Vodafone.
Best for: Budget-conscious users who want unlimited data with decent 5G on Eir’s network.
Price: €14.99/month SIM-only.
2. 48 – Cheapest Unlimited on Three Network
48, owned by Three, offers unlimited data from €12.99 up to €14.99 monthly. It runs on Three’s network, which is notable for its strong 5G rollout and generous data allowances. Like GoMo, it includes EU roaming and is SIM-only with no contract.
Pros: Cheapest unlimited on Three network, 5G included, no contract.
Cons: Slightly varying prices depending on plan selected.
Best for: People wanting the cheapest unlimited data on the Three network with 5G.
Price: €12.99-€14.99/month SIM-only.
3. Clear Mobile – Vodafone Network Unlimited SIM-Only
Clear Mobile offers an unlimited data SIM-only plan at €14.99 monthly on Vodafone’s network. Vodafone is one of the leaders in 5G coverage in Ireland, though MVNOs like Clear Mobile may not get full 5G access on all plans. EU roaming is included, and there’s no contract.
Pros: Affordable unlimited data, Vodafone network quality, EU roaming.
Cons: Possible limited 5G access compared to Vodafone direct plans.
Best for: Users wanting Vodafone coverage on a budget SIM-only plan.
Price: €14.99/month SIM-only.
4. Tesco Mobile – Affordable Entry-Level Unlimited on Three Network
Tesco Mobile runs on the Three network and offers unlimited data plans starting from just €7.99 monthly. It supports 5G and includes EU roaming. Being a Tesco Mobile plan, it’s budget-friendly and great for those who want low-cost unlimited data with decent coverage.
Pros: Lowest starting price for unlimited, 5G, EU roaming, flexible SIM-only.
Cons: Entry price may have data caps or throttling (check current terms).
Best for: Budget users wanting unlimited data with Three’s strong network at a low price.
Price: From €7.99/month SIM-only.
5. Three Bill Pay – Generous Unlimited Data Plans from €20
Three’s bill pay plans start at €20 per month with unlimited data. They lead the 5G rollout in Ireland, offering great speeds and network quality. Plans include EU roaming and come with contracts, often bundled with phones, but also available SIM-only.
Pros: Most generous data allowances, leading 5G network, EU roaming included.
Cons: Higher monthly cost than MVNOs, contracts usually required.
Best for: Users who want top-tier 5G and network quality with unlimited data and don’t mind contracts.
Price: €20-€45/month bill pay.
6. Vodafone Bill Pay – Reliable 5G and Unlimited Data from €25
Vodafone offers bill pay unlimited data plans from €25 to €50 monthly. Known for broad 5G coverage and reliable speeds, Vodafone includes EU roaming under Roam Like At Home. Contracts apply, and plans often include phone bundles.
Pros: Leading 5G network, unlimited data, EU roaming.
Cons: Pricier than budget SIM-only plans, contract commitment.
Best for: Those wanting Vodafone’s network quality and are happy to pay more for bill pay plans.
Price: €25-€50/month bill pay.
7. Eir Bill Pay – Unlimited Data Plans from €20
Eir offers unlimited data plans starting at €20 per month. They provide 5G and EU roaming. Eir’s network coverage is decent but considered by some as less extensive than Three or Vodafone. Contracts are typically involved.
Pros: Affordable unlimited data, 5G, EU roaming.
Cons: Network coverage sometimes questioned.
Best for: Users prioritizing price and willing to trade off some coverage.
Price: €20-€40/month bill pay.
8. Three Prepay – Unlimited Data at €20
Three’s prepaid unlimited data plan comes at €20 monthly, offering 5G and EU roaming. Prepay gives flexibility without contracts and access to Three’s strong network and generous data.
Pros: No contract, 5G, unlimited data.
Cons: Slightly costlier than some MVNO SIM-only plans.
Best for: Users wanting unlimited data without a contract on Three.
Price: €20/month prepaid.
9. Lycamobile – Budget Option with Large Data Allowances
Lycamobile offers large data allowances from €10 monthly. While not always truly unlimited, these plans are very budget-friendly and include EU roaming. Network access varies as Lycamobile is an MVNO.
Pros: Very cheap, sizeable data allowances, no contract.
Cons: Data may not be truly unlimited, network quality varies.
Best for: Budget users needing lots of data but not necessarily unlimited.
Price: Around €10/month SIM-only.
10. Virgin Media Mobile – Unlimited Data at €15
Virgin Media Mobile offers unlimited data plans at €15 monthly. Network details vary, but they include EU roaming. This is a solid mid-budget option with decent coverage and 5G access depending on location.
Pros: Affordable unlimited data, EU roaming.
Cons: Network coverage may not match Three or Vodafone.
Best for: Users wanting an affordable unlimited plan with flexible options.
Price: €15/month SIM-only.
How We Chose These Plans
We focused on mobile plans available in Ireland in 2026, prioritizing unlimited data deals with clear prices, 5G availability, and EU roaming included. We compared main networks—Three, Vodafone, Eir—and their MVNOs like GoMo, 48, Tesco Mobile, and Clear Mobile. Pricing, contract terms, and network quality were key factors.
Plans were ranked by affordability, network strength, and value for unlimited data users. We included both SIM-only and bill pay options to cover all user preferences. Only plans with EU roaming were considered, reflecting the importance of seamless travel across Europe.
Final Verdict
If you want the cheapest unlimited data on a good network, 48 on Three’s network is hard to beat at €12.99-€14.99 monthly. GoMo on Eir’s network offers a solid alternative at €14.99 with 5G. Tesco Mobile starts even lower at €7.99 but check current terms for data limits.
For top 5G coverage and network quality, Three’s own bill pay plans starting at €20 are excellent. Vodafone is a bit pricier but reliable. Eir and MVNOs like Clear Mobile and Virgin Media Mobile fill in the mid-price range with decent coverage.
SIM-only plans are generally cheaper than bill pay, especially for unlimited data. So, if you have a phone or want to buy one outright, SIM-only plans from GoMo, 48, or Tesco Mobile offer the best bang for your buck in 2026 Ireland.
For anyone hunting the best mobile phone plan in Ireland in 2026 with cheapest unlimited data, the choice boils down to your budget and network preference. MVNOs like 48 and GoMo give you the cheapest unlimited data on strong networks with 5G and EU roaming. If you want the best 5G and are happy with contracts, Three and Vodafone have great bill pay plans that start around €20. Tesco Mobile is worth a look for the lowest prices but watch for fine print. Whatever you pick, unlimited data in Ireland is affordable and flexible in 2026, with plenty of options to suit your needs.
This article was created with AI assistance.
