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Best eSIM for Ireland 2026: Prices, Networks and UK Coverage

Ireland eSIM comparison with Ubigi €49 for 30 days, 60GB total before 2Mbps, provider coupon codes and October 2026 verification.
Best eSIM for Ireland 2026: Prices, Networks and UK Coverage
Last updated: 22 October 2026. Base prices in euros (€), checked on official provider listings and EUR selectors. Compare validity and fair use as well as price. Coupons apply only where eligible; confirm the final total at checkout.
Five Ireland eSIM providers with current EUR prices, fair-use limits, networks and existing reader coupon codes.
Ireland plans checked 22 October 2026: Ubigi unlimited/30 days €49, Nomad 20GB/30 days €17.79, Holafly unlimited/30 days €68.90, Airalo 10GB/30 days €16 and Saily unlimited/five days €16.99. Compare fair use and check UK coverage for Northern Ireland.

An Ireland eSIM is an easy way to have maps and messages ready for the trip. The harder part is choosing a plan that fits where you are going. A weekend in Dublin, a month with a laptop and a drive from Galway to Belfast call for different things.

Start with the country list. The Republic of Ireland and Northern Ireland are different coverage destinations. Belfast is in the UK, so an Ireland-only package may leave you without usable data there. The phone does not necessarily lose signal at the exact border, but you should arrange UK coverage before heading north.

For official destination information, attractions and itinerary planning across the island, see the official Tourism Ireland website. This independent government-supported travel resource is useful when planning stops around Dublin, the Wild Atlantic Way and Northern Ireland.

My starting point for a Republic-only trip is Ubigi: 10GB for €12 over 30 days, or its €49 unlimited month with an important 60GB full-speed allowance. Nomad is competitive at 20GB, while the other choices suit different priorities. I lived in Ireland for three years on a Three Ireland plan; that experience informs the practical advice here, but it is not a field test of these five travel eSIMs in Ireland. Continuing on? UK 2026 · Scotland 2026 · Europe 2026.

Why you can trust this guide: I’m Brazilian and live in Belgium, but Ireland was home from July 2022 to October 2025. I learned English there from zero, worked at McDonald’s and became a manager. I used Three Ireland, first prepaid and later on a contract with a Three handset. My home had no Wi-Fi, so I tethered my laptop and everyday work through that connection. It served me well in Dublin and on trips using Three’s roaming in the Netherlands, London, Portugal, Belfast and Spain. I also learned a costly lesson: a €101 roaming overage while already living in Portugal. That experience helps me ask practical questions about a plan, but it does not make these five products Ireland-tested. I’ve tested Nomad in Portugal, Holafly in Portugal, Turkey and Thailand, and Airalo in Figueira da Foz. I have not personally tested Ubigi or Saily. The prices, networks and limits below come from current official listings, checked on 22 October 2026. Reviews: Holafly · Nomad · Airalo.
Travel moments across Ireland, including Dublin, the Guinness Storehouse, Irish countryside and coastal hiking, supporting this guide with firsthand experience.
Part of my time exploring Ireland, from Dublin and the Guinness Storehouse to the Wild Atlantic Way and rural landscapes. Seeing these places in person helped me understand where connectivity works well and where travelers should expect limitations.
More moments from my travels around Ireland, including Temple Bar, Trinity Business School and Bray Head. Visiting different regions gave me practical experience with navigation, mobile coverage and everyday travel beyond the usual tourist attractions.
More moments from my travels around Ireland, including Temple Bar, Trinity Business School and Bray Head. Visiting different regions gave me practical experience with navigation, mobile coverage and everyday travel beyond the usual tourist attractions.
💰 Ubigi’s €49 month is worth comparing with Holafly’s €68.90, with the limits in view. Ubigi lists Eir + Three and gives its 30-day unlimited plan 60GB total before 2Mbps. Holafly lists Three + Vodafone, applies carrier fair use and allows 1GB/day of hotspot sharing. Ubigi is €19.90 cheaper, about 29%, but they are not identical products. For lighter use, Ubigi’s 10GB/30 days at €12 may be enough. Decide how much data you need and whether you will share it before paying for unlimited.
Ubigi €49 versus Holafly €68.90 for 30 days, with their different fair-use and hotspot conditions.
Ubigi costs €49 for 30 days with 60GB total before 2Mbps. Holafly costs €68.90, applies carrier fair use and allows 1GB/day hotspot. The €19.90 difference is about 29% of Holafly’s price; the conditions are different. Checked 22 October 2026.

⚡ Best eSIM for Ireland 2026: Quick Answer

🥇 My value pick: Ubigi, Eir + Three, 5G where available. 10GB/30 days €12; unlimited/30 days €49, with 60GB total before 2Mbps.

📶 Good 20GB value: Nomad eSIM, Three + Eir, 5G listed. 20GB/30 days €17.79, a fixed allowance without a daily reset.

🏆 Unlimited phone data: Holafly, Three + Vodafone. €3.79 for one day or €68.90 for 30 days; carrier fair use and 1GB/day hotspot apply.

🔒 Daily allowance and security extras: Saily, 5GB/day before up to 1Mbps on unlimited plans. 1GB/7 days €3.49; optional US number, not Irish.

🌍 Local or regional choice: Airalo, Ireland 50GB/30 days €39 on Three 4G. Its EU+UK product is a separate purchase for broader trips.

⚠️ Visiting Northern Ireland? Confirm that the selected package includes both Ireland and the UK. A regional name alone is not enough.

✈️ Install on reliable Wi-Fi before flying. Check when your provider starts the validity period, then select the travel eSIM for data on arrival.


Install Your Ireland eSIM Before You Land

Check that your phone is unlocked and supports eSIM, then follow the provider’s installation instructions while you have reliable internet. Installation and activation are not always the same step. Keep the confirmation email and setup instructions available offline, and check the purchase-to-activation deadline. The five provider videos below remain useful setup companions.

On arrival, choose the travel eSIM for mobile data and enable data roaming if its instructions require it. Turn off data roaming on your home SIM and disable automatic mobile-data switching to avoid unexpected charges. You can keep your home number available for calls and 2FA, but your home operator’s rates still apply. Setup guide: How to Activate an eSIM. Label the plans clearly if you also buy UK coverage.

✈️ Have the eSIM installed before travelling to Dublin Airport. A calm setup on home Wi-Fi is easier than troubleshooting while looking for transport. Check your phone’s compatibility and keep the provider’s instructions offline. Airport retail services can change, so I would not make the trip depend on finding a particular eSIM kiosk. Once connected, use our guide to Airlink, Aircoach or a transfer into the city.

Best eSIM for Ireland 2026: Prices Checked 22 October · EUR (€)

Fixed data plans compared (EUR)

PlanUbigi: Eir + Three, 5GNomad: Three + Eir, 5GAiralo: Three, 4GSaily: carrier unnamed
1GBNot listed€4.00 / 7d€4.00 / 3d€3.49 / 7d
3GB€7.00 / 15d€8.01 / 30d€6.50 / 3d; €7.00 / 7d€6.99 / 30d
5GBNot listed€11.12 / 30d€9.50 / 7d; €10.00 / 15d; €10.50 / 30d€9.99 / 30d
10GB€9.00 / 7d; €12.00 / 30d€14.23 / 30d€14.00 / 7d or 15d; €16.00 / 30d€15.99 / 30d
20GBNot listed€17.79 / 30d€23.00 / 15d; €23.50 / 30d€22.99 / 30d
50GB€39.00 / 30d€40.03 / 30d€39.00 / 30dNot listed

Unlimited plans and their speed limits (EUR)

Duration / conditionUbigiNomadAiralo IrelandSailyHolafly
Faster-data allowance20GB total / 7d; 30GB total / 15d; 60GB total / 30d2GB/day3GB/day5GB/dayCarrier fair use; no numeric phone-data threshold stated
Reduced speed2Mbps1Mbps1MbpsUp to 1MbpsCarrier-dependent
1 dayNot listedNot listedNot listedNot listed€3.79
3 daysNot listed€9.78€11.00Not listed€11.37
5 daysNot listed€16.01€17.50€16.99€18.50
7 days€19.00€22.24€25.00€23.99€25.50
10 daysNot listed€29.35€31.50€30.99€33.90
15 days€29.00Not listed€45.00€43.49€46.90
20 daysNot listedNot listedNot listed€53.49Check exact duration
25 daysNot listedNot listedNot listed€58.49Check exact duration
30 days€49.00Not listed€65.50€63.99€68.90

How I would read these tables: compare the validity first, then the allowance. Ubigi’s 10GB costs €9 for seven days or €12 for 30. Nomad’s €17.79 buys 20GB for 30 days. Those fixed plans can be easier to budget than unlimited packages whose faster data resets daily or runs out partway through the trip.

At 50GB, Airalo and Ubigi now tie at €39 for 30 days. Saily has the lowest 1GB price among these five, €3.49 for seven days. Its 5GB daily allowance is useful for regular daily use; Ubigi’s unlimited allowance is a total for the entire package, so the two work differently.

Holafly charges €68.90 for 30 days and allows 1GB of hotspot sharing each day. Its phone data remains subject to carrier fair use. These are base prices before coupons; a low headline price is only useful if the plan covers your route and the way you use data.

What changed in this update: all EUR prices were rechecked, Nomad’s listing now shows Three + Eir with 5G, Airalo’s 50GB price ties Ubigi at €39, and Holafly’s hotspot allowance is 1GB/day. Ubigi’s published total fair-use allowances are now explicit. Saily’s optional number is identified correctly as US. These corrections also appear in the graphics and FAQ.
Ireland eSIM price comparison with Ubigi, Nomad eSIM, Holafly, Saily and Airalo, current networks and reader codes.
Official EUR prices and conditions checked 22 October 2026. Nomad 20GB/30 days is €17.79; Airalo 50GB/30 days is €39; Holafly’s one-day package is €3.79. Coupon eligibility must be confirmed at checkout.

Best eSIM for Ireland 2026: The 5 Providers in Detail

🥇 #1: Value for the Republic
Ubigi: Eir + Three
5G where available · 10GB €12 · unlimited 30 days €49 · total fair-use allowance

Ubigi is my first price check for the Republic of Ireland. It lists Eir and Three with 5G access where available, and its 10GB/30-day package costs €12. That compares with €14.23 at Nomad, €15.99 at Saily and €16 at Airalo for the same allowance and validity.

For a week, Ubigi’s 10GB package drops to €9. I would start there for maps, messages and ordinary phone use, then look at a larger allowance if I planned to share data with a laptop or upload a lot of video.

The unlimited packages cost €19 for seven days, €29 for 15 days and €49 for 30 days. The monthly price is €19.90 lower than Holafly’s, about 29% less, but the fair-use rules differ. A cheaper month is not the same product just because both providers use the word unlimited.

Ubigi publishes the limits: 20GB total on seven days, 30GB total on 15 days and 60GB total on 30 days, then 2Mbps. These are whole-plan allowances, not daily quotas. Hotspot use counts toward them. SmartStart begins the package when it connects at the destination; the purchase must be activated within the stated six-month window. Its reusable profile can take later packages.

I have not personally tested Ubigi. The recommendation comes from its current price, listed networks and published conditions. Coverage and speed still depend on the location, phone and available network. Full review: Ubigi Review 2026.

Ubigi planEUR priceCondition / comparison
3GB / 15 days€7.00Fixed allowance
10GB / 30 days€12.00Nomad €14.23; Saily €15.99
10GB / 7 days€9.00Shorter validity
50GB / 30 days€39.00Ties Airalo at €39
Unlimited / 7 days€19.0020GB total, then 2Mbps
Unlimited / 15 days€29.0030GB total, then 2Mbps
Unlimited / 30 days€49.0060GB total, then 2Mbps; €19.90 below Holafly
Why I would compare Ubigi first: 10GB/30 days at €12 and unlimited/30 days at €49. The monthly unlimited plan has 60GB total before 2Mbps, so estimate your use before choosing it.

Best for: a Republic-only trip where price matters, especially 10GB for a week or a month. For heavy use, compare the total full-speed allowance with your expected usage. Reader code: ANDREONDIGITAL for 10% off eligible purchases.

Watch: How Ubigi eSIM Works for Ireland

Keep this Ubigi video as a setup reference. Use the current tables above for prices and allowances, since an embedded video can predate a plan change.

Install the profile on Wi-Fi, follow the SmartStart instructions and choose it as the data line when you arrive. Check the package’s destinations before reusing it for a later journey; the reusable profile does not give every purchased plan worldwide coverage.

📶 #2: Fixed 20GB Value
Nomad eSIM: Three + Eir
5G listed · 20GB €17.79 · 1GB €4 · fixed or daily-allowance plans

Nomad’s current Ireland listing names Three and Eir, with 5G. My connection to Three is personal: I lived in Ireland from July 2022 to October 2025 and used a Three Ireland plan throughout. Where I lived had no home Wi-Fi, so I used it for the laptop as well as my phone. It served me well in Dublin.

That history makes the network familiar, but a travel eSIM can have different routing and service conditions from a local contract. I have used Nomad in Portugal, not tested its Ireland package across the Wild Atlantic Way. I would still check the planned overnight stops on the coverage map before choosing a network for a road trip.

Nomad’s strongest fixed-data offer here is 20GB for €17.79 over 30 days, below Saily’s €22.99 and Airalo’s €23.50 for their 30-day 20GB plans. The allowance does not reset daily, which suits uneven use: a quiet day sightseeing followed by an evening catching up on work.

Its unlimited plans work differently: 2GB per day, then 1Mbps. The seven-day price is €22.24. For someone who expects several heavy days, I would compare a fixed allowance first rather than assume unlimited means unrestricted speed.

Nomad’s 20GB option is a sensible middle ground for many trips. Its help centre permits hotspot sharing, with device and network compatibility caveats; shared data uses the plan allowance. The choice is about the amount and validity, not a promise of full speed everywhere. Full review: Nomad eSIM Review 2026.

Nomad planEUR priceCondition / comparison
1GB / 7 days€4.00Fixed allowance
10GB / 30 days€14.23Ubigi €12
20GB / 30 days€17.79Lowest 30-day 20GB price among these five
50GB / 30 days€40.03Ubigi and Airalo €39
Unlimited / 7 days€22.242GB/day, then 1Mbps
Nomad’s appeal: 20GB for €17.79 over 30 days, with Three + Eir listed. This is a fixed allowance; its unlimited packages instead use a 2GB daily threshold.

Best for: travelers who want 20GB for a month and prefer a single fixed allowance. Reader code: ANDRE15 for 15% off eligible purchases.

Watch: How Nomad eSIM Works for Ireland

This Nomad video is a companion to installation and app setup. The network and price details in this article were checked separately against the current Ireland product listing.

Follow the plan’s activation notice. The current listing starts validity on connection to a supported network, or automatically after 60 days if unused. Installing well before a trip is useful, but buying months ahead without checking that deadline can waste part of the plan.

🏆 #3: Unlimited Phone Data
Holafly: Three Ireland + Vodafone Ireland
Unlimited phone data · €3.79 for one day · 1GB/day hotspot · eligibility conditions

Holafly lists Three Ireland and Vodafone Ireland, with 4G/5G where available. That is a different carrier pairing from Ubigi and Nomad. It gives another option when comparing coverage at your stops, although two listed networks do not guarantee signal in every building, valley or coastal stretch.

Its unlimited phone data is subject to the local network’s fair-use policy. Holafly does not give a fixed numeric phone-data threshold on this Ireland page. The separate hotspot allowance is 1GB per day, which matters if your laptop needs more than occasional access.

I have used Holafly myself in Portugal, Turkey and Thailand. Those experiences are covered in my review; they are not Ireland speed tests. Here, I would consider it for someone who prefers choosing an exact trip length and mainly uses data on the phone.

The 30-day plan costs €68.90, compared with Ubigi’s €49. Holafly also promotes Always On backup data, subject to its own conditions. One eligibility detail deserves attention: its FAQ excludes domestic use and treats the EU as the domestic area for EU residents. If you live in the EU, confirm eligibility with Holafly before buying this Ireland plan. Full review and comparison: Holafly Review 2026 · Holafly vs Nomad.

Holafly unlimitedEUR priceCondition / comparison
1 day€3.79One-day total, not the daily rate for every duration
5 days€18.501GB/day hotspot
7 days€25.50Carrier fair use
15 days€46.90Ubigi €29 with a different fair-use allowance
30 days€68.90Prepaid trip plan; check EU-resident eligibility
Holafly’s fit: eligible visitors who want unlimited phone data and the Three + Vodafone pairing. Read the fair-use, 1GB/day hotspot and EU-resident domestic-use restrictions.

Best for: eligible visitors who want unlimited phone data and can work within a 1GB daily hotspot allowance. Reader code: ANDREONDIGITAL for 5% off eligible purchases.

Watch: How Holafly eSIM Works for Ireland

The Holafly video remains here for the purchase and setup process. Check the dated Ireland tables and the current order conditions for the plan you actually choose.

Install on reliable Wi-Fi and activate according to the instructions when you reach the destination. Check the country’s inclusion, residency restriction and hotspot allowance before paying. If your journey includes Belfast, arrange a package that explicitly includes UK coverage.

🔒 #4: Daily Allowance and Security
Saily: Irish carrier not named
5GB/day before up to 1Mbps · hotspot allowed · optional US number · 1GB €3.49

Saily’s unlimited option allows 5GB each day before reducing speed to up to 1Mbps. The five-day plan is €16.99, seven days €23.99 and 30 days €63.99. The daily reset can be useful for someone whose data use is fairly steady through the trip.

Saily permits hotspot sharing without a separate tethering quota, but it still uses the package’s data allowance and speed limit. Its smallest fixed package is 1GB for seven days at €3.49. The optional calls-and-texts service provides a US number, not an Irish number, and has separate purchase and identity-verification requirements.

The app includes virtual-location, ad-blocking and web-protection features. Those extras may be useful, but the eSIM purchase is not a full NordVPN subscription.

Saily does not name the Irish partner carrier on the destination page. It describes speeds as dependent on the local provider and available coverage, so I cannot assign it to Three, Vodafone or Eir. If a specific network is essential for a remote stay, the named-network alternatives are easier to assess before buying.

I have not personally tested Saily. The comparison here is based on the current official listing and package selector. Full review: Saily eSIM Review 2026.

Saily planEUR priceCondition / comparison
1GB / 7 days€3.49Lowest 1GB price among these five
10GB / 30 days€15.99Fixed allowance
20GB / 30 days€22.99Nomad €17.79
Unlimited / 5 days€16.995GB/day, then up to 1Mbps
Unlimited / 7 days€23.99Hotspot uses the same allowance
Unlimited / 10 days€30.995GB/day, then up to 1Mbps
Unlimited / 30 days€63.99Optional US number is a separate service
Saily’s fit: 5GB of faster data per day on unlimited plans, hotspot sharing within that allowance and app security extras. The Irish carrier is unnamed and the optional number is US.

Best for: visitors who value the 5GB daily allowance, hotspot sharing and the app’s security extras. Reader code: ANDREONDIGITAL for 10% off eligible purchases.

Watch: How Saily eSIM Works for Ireland

This Saily video covers app-based installation. Keep the app available before departure and refer to the current plan details for its allowance, validity and activation conditions.

The current plan selector says unused plans activate automatically after 180 days, while the same destination page still has a FAQ referring to 30 days. Follow the deadline in your purchase confirmation and ask Saily if those notices conflict. The Ireland package excludes the UK, including Northern Ireland.

🌍 #5: Local or Regional Choice
Airalo: Three 4G for Ireland
50GB €39 · top-ups listed · separate EU+UK and Europe products

Airalo’s Ireland package lists Three at 4G. Its 5GB/seven-day option is €9.50, while 50GB/30 days costs €39, the same base price as Ubigi’s 50GB plan. Top-ups are offered for the listed Ireland eSIM; check the available package in the app rather than assuming every future top-up will keep the same price.

For a journey that also includes Northern Ireland, Airalo sells EU+UK and Europe regional products separately. Check their country lists for Ireland and the United Kingdom before purchase. Buying the local Ireland product does not automatically include those regional destinations.

That distinction is useful when planning Dublin and Belfast on the same trip. Compare the regional package against two local packages for the dates and data you need, rather than choosing the cheapest Ireland listing and hoping it covers the whole island.

At 10GB for 30 days, Airalo costs €16; Ubigi is €12. At 20GB for 30 days, Airalo is €23.50 and Nomad €17.79. Airalo’s local unlimited plans allow 3GB per day before 1Mbps. Its local product explicitly excludes Northern Ireland. Full review: Airalo Review 2026.

Airalo productEUR priceCondition / comparison
Ireland 5GB / 7 days€9.50Local data-only plan
Ireland 10GB / 30 days€16.00Three 4G
Ireland 50GB / 30 days€39.00Ties Ubigi for 50GB
EU+UK regionalCheck selected packageSeparate product; verify Ireland and UK on the country list
Europe regionalCheck selected packageSeparate product; check countries and package conditions
Airalo’s fit: 50GB for €39, short fixed packages and separate regional options. Its local Ireland eSIM uses Three 4G and explicitly excludes Northern Ireland.

Best for: visitors comparing a short fixed package, a 50GB allowance or a separate regional plan for a wider itinerary. Reader code: ANDRE15 for 15% off eligible purchases.

Watch: How Airalo eSIM Works for Ireland

The Airalo video explains purchase and installation. Before following the steps, make sure the package in your account matches the destinations on your itinerary.

The current local Ireland package starts on first connection to a supported network and is data-only. Airalo permits personal hotspot when the device and network support it; shared data uses the same allowance. Set the eSIM as the data line and follow its roaming and APN instructions. A regional package must list both Ireland and the UK if you expect to use it on both sides of the border.


Ireland and Northern Ireland: Check Your Plan Before Driving North

The island has two jurisdictions. The Republic of Ireland has 26 counties, uses the euro and is an EU member. Northern Ireland has six counties, is part of the United Kingdom and uses pound sterling. For a mobile-data purchase, the practical consequence is that an Ireland destination listing may cover only the Republic.

⚠️ Check the country list before travelling to Northern Ireland. Airalo’s and Saily’s local Ireland pages explicitly exclude it. For any package, look for Ireland and United Kingdom if the route covers both jurisdictions. A regional product can solve that problem when both are listed, but the words Europe or global are not a substitute for checking. Coverage does not switch off at a precise geographical line; what matters is whether the plan can use the network your phone reaches.
Ireland and Northern Ireland route planning with a reminder to check both destinations and the home SIM’s roaming settings.
Check Ireland and UK coverage before travelling between the Republic and Northern Ireland. My €101 roaming overage happened while using my Irish Three plan after moving to Portugal, not at this border.
Plan typeRepublic of IrelandNorthern Ireland
Ireland local packageCheck Ireland in coverageDo not assume inclusion; Airalo and Saily explicitly exclude it
UK local packageDo not assume inclusionCheck UK coverage and partner networks
Airalo EU+UK regionalCheck current country listCheck current country list
Europe regional eSIMMust explicitly list IrelandMust explicitly list United Kingdom
Global eSIMMust explicitly list IrelandMust explicitly list United Kingdom

For Belfast, the Giant’s Causeway, the Causeway Coastal Route or Derry/Londonderry, check for explicit UK coverage. You can choose a regional package that lists both destinations or use separate Ireland and UK packages. A signal from the other side of a border may remain visible for a while; that does not change what the plan includes.

My own expensive roaming lesson happened elsewhere: I ran up a €101 overage while using my Irish Three plan after I was already living in Portugal. It was not a Northern Ireland border charge. It taught me to read the limits of the plan I was using rather than assume that familiar roaming arrangements would cover every situation.

Choose the right destinations, then check your phone’s settings as well. Keeping the home SIM active can still create charges for calls, messages or accidental data use. For the UK part of the trip: Best eSIM for the UK 2026.


Wild Atlantic Way: Plan for Gaps Along the Coast

The Wild Atlantic Way follows roughly 2,500km of coastline from Donegal to Cork. A route that long takes you through towns as well as exposed headlands, valleys and ferry crossings. I would plan around the places I actually need a connection, especially the accommodation and any stops where I expect to work.

🌊 Plan the coastal route around your actual stops. Check accommodation, ferry departure points and places where you need to work. Hills, cliffs, buildings and distance from a mast can affect service. I cannot promise that one network wins every section of Donegal, Connemara, Kerry or Clare. Compare the official coverage map, ask local hosts and download maps on Wi-Fi before each remote stage. A second listed network is useful to consider, but does not guarantee uninterrupted service.
Wild Atlantic Way planning map with reminders to check local coverage and download offline maps.
A planning guide for the Wild Atlantic Way, not a carrier field test. Check official coverage at your stops, ask about indoor signal and keep maps offline. No provider guarantees uninterrupted service along the coast.

Use ComReg’s official coverage map to check the Republic’s networks at those locations. It predicts outdoor coverage, not a guaranteed result inside a cottage or on a boat. Save booking details and maps offline, and ask your accommodation which network works there. WhatsApp is useful when a business offers it, but keep its phone number too.


Ireland’s Three Networks Explained (and the 2026 Changes)

📡 Three, Vodafone and Eir are the networks to compare in the Republic. The travel providers buy access to one or more local networks, with their own product conditions. My personal Three Ireland experience was good in Dublin, but that is not a national coverage test. Use ComReg’s address-level map for the Republic and Ofcom’s checker for Northern Ireland. Treat the maps as predictions and check indoor needs with the accommodation.

Eir’s phased 3G switch-off started on 1 October 2026. Its official schedule lists affected areas and dates, so check that schedule if you rely on an older handset. For this comparison, what matters is the generation actually supported by the travel plan: Airalo’s Ireland listing says 4G, while Ubigi, Nomad and Holafly list 5G access where available.

An eSIM is a way to provision a mobile line, not a guarantee of a newer radio connection. Both physical SIMs and eSIMs need a compatible phone, supported frequencies and an available network. If you also need ordinary voice calls, check the device and voice support separately from mobile data.

ProviderListed Ireland network(s)Generation listedWhat to consider
UbigiEir + Three5G where availablePrice and total fair-use allowance
Nomad eSIMThree + Eir5G where available20GB fixed allowance
HolaflyThree + Vodafone4G/5G where availableFair use, hotspot and residency eligibility
Airalo IrelandThree4GLocal package differs from regional products
SailyNot namedDepends on local provider and coverageDaily allowance and unnamed partner network

Tips for Using an eSIM in Ireland

Before the flight: install on reliable Wi-Fi, save the instructions, and check the activation deadline. Before driving north: check UK coverage and home-SIM roaming settings. Do not rely on an assumed airport kiosk service or on the phone staying on the same network after you cross the border.

For a rural stay, the exact address is more useful than a national coverage claim. Check ComReg, ask the host, and keep an offline backup. My good experience with Three in Dublin is useful context, but it cannot tell you whether a particular coastal room has usable signal.

Download maps before remote driving stages and ferry journeys. Keep a power bank handy for long days of navigation, and save important reservations offline. WhatsApp can keep your existing account working over the eSIM’s data without changing your number. For wider trips: Europe 2026 · Scotland 2026 · 30 Days in Europe.


FAQ: Best eSIM for Ireland 2026

What is the best eSIM for Ireland 2026?
For a Republic-only trip, my first value check is Ubigi: 10GB/30 days costs €12, while unlimited/30 days costs €49 with 60GB total before 2Mbps. Nomad offers 20GB/30 days for €17.79. Holafly suits eligible visitors who prefer unlimited phone data, with carrier fair use and 1GB/day hotspot. Saily provides 5GB/day before up to 1Mbps on unlimited plans. Airalo offers 50GB/30 days for €39 and separate regional products. Choose UK coverage as well if visiting Northern Ireland. Prices checked 22 October 2026, before eligible coupons.
Which carriers do eSIMs use in Ireland?
The official Ireland listings name Eir + Three for Ubigi, Three + Eir for Nomad, Three + Vodafone for Holafly and Three 4G for Airalo. Saily does not name its Irish carrier. Ubigi, Nomad and Holafly list 5G access where available. These are provider specifications, not a guarantee of speed or indoor coverage. Checked 22 October 2026.
Does my Ireland eSIM work in Northern Ireland?
Do not assume it does. Northern Ireland is part of the UK. Airalo and Saily explicitly exclude it from their local Ireland packages. For any provider, confirm that the selected package lists UK coverage if visiting Belfast, Derry/Londonderry or the Causeway Coast. A regional package can cover both jurisdictions when both Ireland and the UK are included. Signal does not necessarily disappear at the exact border.
Which is the cheapest unlimited eSIM for Ireland?
Among the five providers and matching durations compared here, Ubigi has the lowest seven-, 15- and 30-day base prices: €19, €29 and €49. Those plans include 20GB, 30GB and 60GB total respectively before 2Mbps. Its month costs €19.90 less than Holafly’s €68.90, but fair-use and hotspot rules differ. Compare the faster-data allowance as well as the price. Checked 22 October 2026.
Can I use one eSIM for Ireland and the UK?
Yes, if the purchased package explicitly includes both destinations. Airalo sells EU+UK and Europe regional products separately from its local Ireland eSIM. Other regional or global products may also cover both, but check the current country list and plan conditions before buying. Do not treat the word Europe or global as a guarantee that every stop is included.
Which eSIM is best for the Wild Atlantic Way?
There is no verified single winner for every coastal stop in this guide. Compare the networks listed by the provider against ComReg’s official coverage map at your accommodation and planned stops. Ask local hosts about indoor reception, save maps and reservations offline, and plan for possible gaps around remote terrain and ferry journeys. Two listed networks do not guarantee uninterrupted service.
Can I buy an eSIM at Dublin Airport?
Airport retail options can change, so do not rely on finding a particular eSIM kiosk. The more predictable approach is to check that the phone is unlocked and compatible, buy online and install on reliable Wi-Fi before departure. Follow the provider’s activation instructions and deadline so the plan is ready when you reach Ireland.

Final Verdict: Best eSIM for Ireland 2026

I would choose the plan after the route. For a Republic-only holiday, it is easy to spend more on data than you need. For a trip that includes Belfast, an inexpensive Ireland package can be the wrong purchase before you have used a single megabyte.

  • 🥇 Ubigi: my first value check, with 10GB/30 days at €12 and unlimited/30 days at €49. The latter includes 60GB total before 2Mbps. Code ANDREONDIGITAL: 10% off eligible purchases.
  • 📶 Nomad eSIM: 20GB/30 days for €17.79 on the listed Three + Eir networks. A useful fixed allowance if your daily usage varies. Code ANDRE15: 15% off eligible purchases.
  • 🏆 Holafly: unlimited phone data, subject to carrier fair use, with 1GB/day hotspot. €3.79 for one day or €68.90 for 30. Check the EU-residency restriction. Code ANDREONDIGITAL: 5% off eligible purchases.
  • 🔒 Saily: 5GB/day before up to 1Mbps on unlimited plans, starting at €16.99 for five days. The optional number is US, not Irish. Code ANDREONDIGITAL: 10% off eligible purchases.
  • 🌍 Airalo: 50GB/30 days at €39, plus separate regional products to compare for Ireland and UK travel. The local package is Three 4G and excludes Northern Ireland. Code ANDRE15: 15% off eligible purchases.

For a week with maps, messaging and restaurant searches, I would begin with Ubigi’s 10GB/7 days at €9. If I expected more data over a month, Nomad’s 20GB at €17.79 would be my next comparison. For laptop use, I would estimate the workload before choosing between a fixed plan and a daily or total fair-use allowance. Holafly’s 1GB hotspot ceiling needs particular care. And for Dublin plus Belfast, I would settle the Ireland-and-UK country list first, then compare price. That is a more useful decision than choosing a provider solely because it says unlimited or 5G.

Final Ireland eSIM comparison with five provider choices, correct EUR prices and reader coupons, checked October 2026.
My shortlist depends on the route and data needs: compare Ubigi’s total allowance, Nomad’s 20GB fixed plan, Holafly’s hotspot limit, Saily’s daily allowance and Airalo’s separate regional products. Official figures checked 22 October 2026.

This article contains affiliate links. I may earn a commission at no extra cost to you. Prices are in euros (€), before coupons, and were checked against official provider listings on 22 October 2026. Coupon eligibility and final checkout prices can change. I’m Brazilian and live in Belgium; I lived in Ireland from July 2022 to October 2025 and used Three Ireland throughout that period.

I’ve personally tested Nomad in Portugal (Porto, Lisbon and Figueira da Foz), Holafly in Portugal, Turkey and Thailand, and Airalo in Figueira da Foz. I have not personally tested Ubigi or Saily. My Ireland experience was with a local Three Ireland plan, not an Ireland field test of these travel eSIMs.

Networks checked on the official Ireland listings: Ubigi, Eir + Three; Nomad, Three + Eir; Holafly, Three + Vodafone; Airalo, Three 4G. Saily does not name the Irish carrier. A listed network or 5G option does not guarantee the same connection at every stop.

Fair-use comparison: Ubigi has total allowances of 20GB, 30GB and 60GB on its seven-, 15- and 30-day unlimited packages, then 2Mbps. Nomad allows 2GB/day before 1Mbps; Airalo Ireland allows 3GB/day before 1Mbps; Saily allows 5GB/day before up to 1Mbps. Holafly applies carrier fair use and separately allows 1GB/day hotspot.

For Northern Ireland, confirm explicit UK coverage on the selected package. For older devices, check Eir’s ongoing 3G switch-off schedule. Recheck price, eligibility, activation and network details before purchase, particularly if buying well ahead of departure.

Last verified: 22 October 2026. Prices and conditions were checked in EUR. The tables, comparison graphics and FAQ use the same dated figures.

Official sources: Ubigi Ireland · Nomad Ireland · Holafly Ireland · Saily Ireland · Airalo Ireland · Airalo EU+UK · Airalo Europe · Eir 3G schedule · Ofcom Northern Ireland coverage. Prices were checked in the providers’ EUR selections, not estimated from dollar conversions.


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