eSIM Ireland
Best eSIM for Ireland: 8 Providers Ranked
Dec
Verdict: eSIM4.com
After extensive testing across the Emerald Isle, the eSIM4 Ireland plan is our top recommendation. It offers superior coverage by connecting you to Three, Eir, and Vodafone, ensuring reliable connectivity even in rural coastal areas like the Wild Atlantic Way.
With an instant QR code setup and unique app integration for calls and texts, it’s the most reliable and worry-free connectivity solution for your Irish adventure.
Why We Chose eSIM4
- Best Network: Three Ireland and Vodafone Ireland blend with 5G across Dublin, Cork, Galway, Limerick, Waterford.
- Real Phone Number: Optional Yabb app adds calls and SMS on a routable number.
- Widest Plan Range: 1 GB to unlimited 30-day, starting from $2.98.
- Instant Setup: Install before you fly, auto-connect on landing.
- 24/7 Support: Email, chat, and WhatsApp support around the clock.
Quick Comparison: Top eSIM Providers for Ireland
Snapshot of the leading eSIM options for Ireland in 2025. Use this table to shortlist your reliable esim provider.
| Rank | Provider | Rating | Starting Price |
Best For |
|---|---|---|---|---|
| 1 | ⭐ eSIM4 | 4.9/5 | $2.98 | Overall Value |
| 2 | Saily | 4.7/5 | $3.99 | Security Features |
| 3 | Airalo | 4.7/5 | $4.00 | Frequent Flyers |
| 4 | Nomad | 4.6/5 | $4.50 | Free Trial |
| 5 | Jetpac | 4.5/5 | $7.00 | Budget Entry |
| 6 | aloSIM | 4.4/5 | $3.50 | Phone Number |
| 7 | Roamless | 4.2/5 | $3.84 | Alternative Pick |
| 8 | Gigsky | 4.2/5 | $2.99 | Alternative Pick |
Top eSIM Providers
Detailed reviews with verified pricing and carrier-specific notes.
eSIM4
eSIM4 is our top pick for Ireland because it ships a wide plan range, from a 1 GB snacker at $2.98 up to unlimited 30-day packs. Add the optional Yabb app and you also get a real phone number for calls and SMS, which most competitors won’t give you.
Coverage
eSIM4 does not name its network in Ireland.
Price
Entry pricing starts at $2.98 for 1 GB/7 days, with the sweet spot being 5 GB/30 days at $9.98 for a classic 10-day road trip or the 3-day unlimited at $9.98 for a long Dublin weekend. The 10-day unlimited at $32.98 undercuts the typical tourist SIM from a Spar or Centra (which often runs 20-30 EUR with less data headroom).
Data Plans
| Data | Duration | Price | Savings |
|---|---|---|---|
| 1GB | 7 Days | $7.20 $2.98 | Save $4.22 |
| 2GB | 15 Days | $10.80 $4.98 | Save $5.82 |
| 3GB | 30 Days | $13.50 $5.98 | Save $7.52 |
| 5GB | 30 Days | $19.80 $9.98 | Save $9.82 |
| 10GB | 30 Days | $30.60 $15.98 | Save $14.62 |
| 20GB | 30 Days | $45.90 $23.98 | Save $21.92 |
| 50GB | 30 Days | $75.60 $40.98 | Save $34.62 |
| Unlimited | 3 Days | $20.70 $9.98 | Save $10.72 |
| Unlimited | 5 Days | $34.20 $17.98 | Save $16.22 |
| Unlimited | 7 Days | $48.60 $25.98 | Save $22.62 |
| Unlimited | 10 Days | $61.20 $32.98 | Save $28.22 |
| Unlimited | 15 Days | $87.30 $46.98 | Save $40.32 |
| Unlimited | 30 Days | $127.80 $69.98 | Save $57.82 |
Activation Process
Pay on esim4.com and your activation email brings a QR code and manual setup details. On iOS 17.4 or later, its Direct Installation link installs the eSIM for you. Android phones use the SIM or connections menu. In Ireland, allow roaming on the eSIM4 line but not on your home SIM, and disable data switching. A refund guarantee applies if your phone cannot install it.
Pros
- Lowest entry price on this page, $2.98 for 1 GB over 7 days
- Optional Yabb add-on for a real, routable phone number (calls + SMS)
- Unlimited plans from 3 to 30 days, starting at $9.98
- 24/7 support via email, chat, and WhatsApp (handy if a hotel Wi-Fi check-in kiosk won’t load)
- Plans stay dormant until first use, so you control when the clock starts
Cons
- To get calls and SMS you need to install the Yabb app, which costs extra
Saily
Saily is NordVPN’s eSIM arm and pitches itself as the privacy-first option, bundling a built-in ad blocker and virtual-location routing into every plan. The Ireland lineup has a handful of capped data tiers, mostly on a 30-day shelf, plus unlimited packs from 5 to 30 days.
Coverage
Saily does not name its network in Ireland.
Data Plans
| Data | Duration | Price |
|---|---|---|
| 1GB | 7 Days | $3.99 |
| 3GB | 30 Days | $7.99 |
| 5GB | 30 Days | $10.99 |
| 10GB | 30 Days | $17.99 |
| 20GB | 30 Days | $25.99 |
| Unlimited | 15 Days | $48.99 |
Activation Process
A saily.com order emails you a QR code for setup, while app buyers tap Install eSIM. Install before departure, and your plan starts by itself once you land in Ireland. Later, top-ups go onto the same eSIM, and Auto top-up can renew your plan when the data runs out.
Price
In Ireland, Saily’s smallest plan is 1 GB for 7 days at $3.99. A 3 GB month costs $7.99, $2.01 more than eSIM4’s same plan. Unlimited data comes in seven lengths, from 5 days at $18.99 to 30 days at $71.99. That 5-day price is the highest unlimited entry on this page.
Pros
- NordVPN ad blocker and threat protection bundled in
- Unlimited data in seven lengths, from 5 to 30 days
- Clean, fast mobile app (iOS and Android)
Cons
- Unlimited plans start at $18.99 (5 days), the highest on this page
- No capped packs below 7 days
Airalo
Airalo is the biggest eSIM marketplace in the world, so the Ireland brand-recognition argument is real. The app is polished and multilingual, which helps if you’re traveling with a non-English-speaking group.
Coverage
Airalo’s Ireland plan (Clover Mobile) rides on Three Ireland. 4G/4G+ holds across the Wild Atlantic Way, the Causeway Coast, and the Ring of Kerry.
Data Plans
| Data | Duration | Price |
|---|---|---|
| 1GB | 3 Days | $4.00 |
| 3GB | 3 Days | $7.00 |
| 3GB | 7 Days | $7.50 |
| 5GB | 7 Days | $10.00 |
| 5GB | 15 Days | $10.50 |
| 5GB | 30 Days | $11.00 |
| 10GB | 7 Days | $15.00 |
| 10GB | 15 Days | $15.00 |
| 10GB | 30 Days | $17.00 |
| 20GB | 15 Days | $25.00 |
| 20GB | 30 Days | $25.50 |
| 50GB | 30 Days | $42.00 |
Activation Process
Airalo sells through airalo.com and its app, and both need an account. Install early over a stable connection, after reading the package’s Activation Policy. Once in Ireland, switch the eSIM line on and choose it for data. Set Data Roaming the way the app instructs, and switch off Allow Cellular Data Switching. Rechargeable eSIMs can be topped up later.
Price
With Airalo, $4.00 buys 1 GB for 3 days in Ireland. For 15 days, 10 GB costs $15.00. Its 50 GB / 30-day plan is $42.00, $1.02 above eSIM4’s same plan. An unlimited plan costs $11.50 for 3 days or $71.00 for 30 days.
Pros
- Massive global brand presence, 16+ million users worldwide
- Multilingual app (useful for international groups)
- Irish coverage via the 3 network
Cons
- Unlimited plans for Ireland start at $11.50, above eSIM4’s $9.98
- Pricing tracks aloSIM but checkout is slower
Nomad
Nomad has the cheapest 20 GB / 30-day plan on this list for Ireland. The 20 GB/30 days at $20 is one of the best rates on the market, and they ship genuine unlimited packs in 3, 5, 7, and 10 day durations for short trips. Hotspotting is allowed on every plan.
Coverage
Nomad routes through 3 and Eir, so you get 5G in every major Irish city and 4G along every main rail and motorway corridor, including the Dublin-Cork, Dublin-Galway, and Dublin-Belfast lines.
Data Plans
| Data | Duration | Price |
|---|---|---|
| 1GB | 7 Days | $4.50 |
| 3GB | 30 Days | $9.00 |
| 5GB | 30 Days | $12.50 |
| 10GB | 30 Days | $16.00 |
| 20GB | 30 Days | $20.00 |
| 50GB | 30 Days | $45.00 |
| Unlimited | 3 Days | $11.00 |
| Unlimited | 5 Days | $18.00 |
| Unlimited | 7 Days | $25.00 |
| Unlimited | 10 Days | $33.00 |
Activation Process
Nomad emails installation and activation steps after purchase, QR code included. Scan it before your flight, or install from Nomad’s app instead. When you reach Ireland, switch the eSIM on, choose it as your data line, enable Data Roaming and restart. Depending on the plan, you may also have to enter an APN.
Price
With Nomad, 1 GB for 7 days costs $4.50, against $2.98 at eSIM4. A 5 GB month is $12.50, $2.52 more than eSIM4’s. For heavy use, 50 GB over 30 days costs $45.00. A week of unlimited data is $25.00, 98 cents under eSIM4’s 7-day plan, and 10 days cost $33.00.
Pros
- 20 GB/30 days at $20 is best-in-class pricing for Ireland
- Genuine unlimited 3/5/7/10 day plans
- Tethering/hotspot allowed on every plan
Cons
- No phone number or SMS add-on, data only
- Throttle applies after 50 GB on the monthly data plan
Jetpac
Jetpac stands out on Ireland because plans include a free Boingo Wi-Fi pass worth $10, unlocking around 1 million hotspots globally, useful at Dublin airport, Heuston and Connolly stations, and big-city Starbucks. They also ship a 10-day unlimited pack for $55.00.
Coverage
Jetpac uses Three Ireland as the host network, so you get the same grid locals do.
A separate Boingo code lands in your email inbox, which you register in the Boingo app to activate the free Wi-Fi pass. Do both steps on home Wi-Fi before you fly.
Data Plans
| Data | Duration | Price |
|---|---|---|
| 1GB | 4 Days | $7.00 |
| 20GB | 30 Days | $40.00 |
| 30GB | 30 Days | $65.00 |
| 40GB | 30 Days | $70.00 |
| Unlimited | 10 Days | $55.00 |
Activation Process
Install your Jetpac eSIM from its app before you fly. Jetpac advises switching it on only after landing, so the pack lasts your whole trip. In Ireland, turn on data roaming and select Jetpac under Mobile Data. Do not turn on Allow Mobile Data Switching.
Price
No provider on this page has a higher entry price than Jetpac’s $7.00 for 1 GB over 4 days. For a week, 15 GB costs $27.00. Over 30 days, 20 GB is $40.00 against $23.98 at eSIM4. Unlimited starts at $15.00 for 3 days, and 30 days cost $150.00, which is $80.02 more than eSIM4’s same plan.
Pros
- Free Boingo Wi-Fi pass (around 1 million hotspots, worth $10)
- Genuine 10-day unlimited plan at $55.00
- Clean iOS and Android app with direct-install flow
Cons
- Highest entry price on this page, $7.00 for 1 GB
- No calls or SMS add-on
aloSIM
aloSIM is the no-frills, tap-to-buy option. The Ireland lineup runs from 1 GB to 50 GB, plus unlimited plans from 1 to 30 days.
Coverage
aloSIM uses Eir and Three in Ireland. On rural routes, it holds 4G along the Wild Atlantic Way, around the Ring of Kerry, and through the Boyne Valley.
Data Plans
| Data | Duration | Price |
|---|---|---|
| 1GB | 7 Days | $4.50 |
| 3GB | 30 Days | $8.00 |
| 5GB | 15 Days | $9.50 |
| 5GB | 30 Days | $11.00 |
| 10GB | 30 Days | $18.00 |
| 20GB | 30 Days | $28.00 |
Activation Process
Get the free aloSIM app for iPhone or Android, then install from My eSIMs. Pick automatic install there, or scan a QR code off another screen, or paste in two codes by hand. Data only starts once you reach Ireland. Later top-ups add a new package to this same eSIM, which starts when the current one expires.
Price
A single day with 1 GB costs $3.50, aloSIM’s smallest plan in Ireland. For 1 GB over 7 days, aloSIM asks $4.50 and eSIM4 asks $2.98. Its 50 GB / 10-day plan costs $25.00, which comes to $0.50 per GB, the best rate on this page. Unlimited data costs $5.00 for 1 day or $11.50 for 3 days.
Pros
- Fastest checkout on the list (Apple Pay/Google Pay, no signup)
- Eir and Three host networks in Ireland
- Nearly identical pricing to Airalo but cleaner app
Cons
- Unlimited plans cost more than eSIM4’s at 3, 5 and 7 days
- 20 GB / 30 days costs $28.00, above eSIM4’s $23.98
Roamless
Roamless runs a pay-as-you-go model on a single lifetime eSIM profile, so you install it once and top up from the app whenever you travel. For Ireland that means no expiry pressure and some of the cheapest per-GB rates on this list.
Coverage
Roamless uses Eir and Three in Ireland. The pay-as-you-go model means data doesn’t expire the way time-boxed plans do, which is useful if your trip stretches or shortens.
Data Plans
| Data | Duration | Price |
|---|---|---|
| 1GB | 30 Days | $3.95 |
| 3GB | 30 Days | $7.45 |
| 5GB | 30 Days | $10.95 |
| 10GB | 30 Days | $16.95 |
| 20GB | 30 Days | $25.45 |
Activation Process
Roamless recommends activating its eSIM before you travel, using one-click Install Now in the mobile app. That eSIM stays on your phone with no expiry date. For your trip, buy a data plan or top up pay-as-you-go credit, which never expires. Make the eSIM your active data line, with data roaming switched on for it.
Price
For Ireland, Roamless charges $3.84 for a day of unlimited data, and a 30-day unlimited plan is $70.20. Every capped plan lasts 30 days. The range goes from 1 GB at $3.95 up to 50 GB at $39.95, which is $0.80 per GB. Its 20 GB plan costs $25.45, $1.47 more than eSIM4’s.
Pros
- Free 500 MB/30 days tier (genuine, not a trial)
- Per-GB pricing among the cheapest on the list
- Lifetime eSIM profile, install once and top up forever
Cons
- Pricier than eSIM4 for unlimited at 3, 5 and 7 days
- App requires an account and can feel busier than Airalo/aloSIM
Gigsky
Gigsky is the long-duration specialist. Their Ireland lineup includes 90-day and 180-day data packs, which nobody else on this list offers, making them the pick for digital nomads, exchange students, and anyone on a 3-to-6 month Irish stint rather than a holiday.
Coverage
Gigsky does not name its local network for Ireland.
Data Plans
| Data | Duration | Price |
|---|---|---|
| 1GB | 7 Days | $2.99 |
| 3GB | 15 Days | $6.99 |
| 5GB | 30 Days | $10.29 |
| 10GB | 30 Days | $16.79 |
| 50GB | 180 Days | $40.89 |
Activation Process
On your own phone, GigSky’s app installs the eSIM through Install on this device. In Ireland, switch on Data Roaming for the GigSky line and check that the APN is set to gigsky. A plan’s days usually start with its first connection there. If your plan supports top-ups, add more data in the app.
Price
In Ireland, a week with 1 GB costs $2.99 on GigSky, a single cent more than eSIM4. Unlimited data opens at $3.49 for 1 day, lower than any other provider here. Its week of unlimited data costs $24.49, which is $1.49 under eSIM4’s. A 10 GB / 30-day plan is $16.79, 81 cents more than eSIM4’s same plan.
Pros
- Only provider with 90-day and 180-day data plans
- 50 GB/180 days pack at $40.89 for long stays
- Lowest unlimited entry on this page, $3.49 for 1 day
Cons
- No unlimited plan longer than 30 days for Ireland
Apps to Install Before You Leave
| App | Why | Cost | Platform |
|---|---|---|---|
| Leap Top-Up | Top up a physical or virtual Leap Card without visiting a shop or machine | Free | iOS / Android |
| TFI Go | Buy single and return bus, DART and commuter-rail tickets by phone, up to 30% cheaper than cash | Free | iOS / Android |
| TFI Live (Transport for Ireland Real-Time) | Live bus, Luas and DART arrival boards plus journey planner across the whole country | Free | iOS / Android |
| FreeNow | Ireland’s #1 taxi-booking app, strongest in Dublin, Cork, Galway, Limerick and Waterford | Free (pay fare in-app) | iOS / Android |
| Bolt | Taxi app competing with FreeNow; cheapest fares nationwide including rural counties | Free (pay fare in-app) | iOS / Android |
| Iarnród Éireann (Irish Rail) | Book intercity train seats Dublin, Cork, Dublin, Galway, Dublin, Belfast Enterprise | Free | iOS / Android |
| Met Éireann | Official Irish weather service. Genuinely essential given how fast conditions change | Free | iOS / Android |
| eFlow | Pay M50 barrier-free toll before the 8pm-next-day deadline to avoid escalating penalties | Free (toll charged) | iOS / Android |
| Revolut | De facto peer-to-peer payment app in Ireland. B&Bs and locals routinely request it | Free (standard plan) | iOS / Android |
| Google Maps (Offline) | Mobile coverage drops in rural Kerry and Connemara; download offline maps before you leave Dublin | Free | iOS / Android |
| Aircoach | Book express coach routes Dublin Airport, Cork, Belfast, and Derry | Free | iOS / Android |
| Default messaging app in Ireland and the standard way tour operators, B&Bs and guides confirm bookings | Free | iOS / Android |
Activating Your eSIM on Arrival
⚠ Heads up: Most eSIM plans start counting from first data use, not from purchase. Activate a 3-day unlimited plan at Dublin Airport and a third of it is already gone by the time you reach your hotel in Temple Bar.
Install the profile at home on Wi-Fi and the plan stays dormant until you switch to it in Ireland. You control the clock.
Install Before You Fly: 3 Simple Steps
Save it to email, your camera roll, and a screenshot folder while you are on home Wi-Fi. That way you have a backup copy if one app loses the image.
iPhone: Settings > Cellular > Add eSIM > Use QR Code. Android: Settings > Network & Internet > SIMs > Add eSIM. Label the profile “Ireland” so you can switch back to your home line easily.
Turn airplane mode off, wait 30 seconds for the handset to attach, then flip cellular data to the Ireland eSIM. You should see Three or Vodafone IE as the carrier name within a minute.
If You Haven’t Set It Up Yet: Airport Guide
Dublin Airport (DUB)
Unlimited free Wi-Fi across T1 and T2 with no sign-up and no time limit, delivered by eir on the “DublinAirport Free WiFi” network.
Three Ireland and Vodafone Ireland both show strong 5G inside both terminals, so auto-attach usually completes before you clear immigration.
Tip: Finish activation at the gate on home Wi-Fi if you can. If not, the airport Wi-Fi is quick enough for a QR scan.
Shannon Airport (SNN)
“FLYSHANNON Free Wi-Fi” runs throughout the terminal with no registration. Plenty of bandwidth for a QR scan.
Mobile coverage inside the terminal is solid. Expect auto-attach on 4G/5G within a minute of leaving airplane mode.
Fallback: A Vodafone and Three kiosk near arrivals sells pay-as-you-go SIMs if anything fails.
Cork Airport (ORK)
Unlimited free Wi-Fi on the “Cork Airport Wi-Fi” network, again without registration.
Coverage is strong on both Three and Vodafone inside the terminal. Expect auto-connect within seconds of landing.
Tip: If your plan stays dormant until first use, wait until you’re outside the terminal before you flip cellular data over.
Phone Numbers and SMS
Ireland-only eSIMs usually don’t come with a local phone number, which matters for 2FA codes and restaurant bookings. The cleanest workaround is dual-SIM: keep your home SIM active for SMS receive-only (set data to the eSIM to avoid roaming) and use the Ireland data eSIM for everything else.
For apps like WhatsApp and iMessage. Which are how almost every tour guide and B&B host actually communicates.
You never need a local number at all. In an emergency, 112 and 999 are both free from any handset and connect to the same Emergency Call Answering Service, with 112 being the pan-European number, and calls reach An Garda Síochána (the Irish police) regardless of which number you dial.
If you need a voice number for hotel bookings or car hire confirmations, Revolut’s eSIM plans and similar virtual-number services let you receive calls over data without swapping your primary SIM.
Mobile Networks and Coverage in Ireland
Three Ireland is the largest mobile network in the Republic of Ireland, ahead of Vodafone Ireland and Eir. When you buy an eSIM for Ireland, it roams onto one of these three carriers, and which one decides the coverage you actually get. Most international eSIM providers, including eSIM4, route their Ireland traffic over Three or Vodafone, so you’ll usually see “Three IE” or “Vodafone IE” pop up as the carrier name once your plan activates.
In Dublin, Cork and Galway, 4G is everywhere and 5G is now widespread across the three networks, so video calls, Google Maps and a bit of tethering all run on high-speed data without much thought. The picture changes the moment you head for the rural west. Coverage along the Wild Atlantic Way, through Connemara, and over mountain passes on the Ring of Kerry gets patchy fast, dropping to 3G or nothing at all between towns. Three and Vodafone tend to hold a signal best in these rural areas, but no carrier covers every glen.
This is the single biggest thing to consider before a road trip. Download offline Google Maps for the Ring of Kerry, the Dingle Peninsula and Connemara while you still have a city connection, and you’ll keep navigating even when the bars vanish. Remember you’ll also be driving on the left, so set the route before you pull away rather than fiddling with the phone on a narrow hedged road.
⚠ Northern Ireland is a different country for your eSIM. Northern Ireland is part of the United Kingdom, not the Republic of Ireland, so it runs on UK networks and the pound rather than the euro. An Ireland (Republic) eSIM may not cover Belfast or the Giant’s Causeway at all, or it switches to expensive roaming the moment you cross the border. If you plan to visit the north, check the coverage maps before you buy and pick an all-island or UK+Ireland plan. Travellers doing both the Republic and the UK should read our best eSIM for the UK guide, which is essential reading for anyone visiting Northern Ireland.
How To Send Text Messages With eSIM4 In Ireland
Being able to communicate with friends and family while abroad is essential and Yabb allows you to stay online no matter where you are in the world! You can easily upload messages and photos.
💬 Pay As You Go
Purchase different texting packs as you need them.
👥 Group Messaging
Update everyone on your trip at once with group text support.
🌐 Global Reach
Send text messages to mobile numbers in over 200+ countries instantly.
Frequently Asked Questions About eSIMs for Ireland
Is eSIM available in Ireland?
Yes, Ireland fully supports eSIM technology. Major carriers like Three, Eir, and Vodafone support it, and international providers offer excellent prepaid esim plans.
Which is the best eSIM provider for Ireland?
eSIM4 is the top-rated provider due to its affordable pricing and partnership with premium local networks, which offers reliable data in both cities and rural areas.
How much is eSIM in Ireland?
Prices depend on data amount. A 1GB plan typically costs around $2.98, $5.00 depending on the provider and validity period. Bigger data allowances like 10GB, 20GB and 50GB plans cost more per plan but far less per GB, so they work out budget-friendly for longer trips. Most plans run for 7, 14 or 30 days.
What is the best eSIM card for Ireland?
For most travellers the best eSIM for Ireland is eSIM4, because its plans are affordable and roam on premium local networks (Three, Vodafone, Eir) for reliable coverage in Dublin, Cork and Galway as well as rural areas. The best esim option for you depends on your trip: pick a data-only plan sized to your activities, or a larger unlimited-style data plan if you stream and tether a lot.
Does eSIM work in Ireland?
Yes. eSIM works across the Republic of Ireland on 4G and 5G, and the activation process is simple: buy the plan, install the profile, then activate it once you land. Just check your phone is eSIM-compatible first. Most iPhones from 2018 onward and recent Samsung and Google Pixel handsets are. Remember an Ireland eSIM covers the Republic only, not Northern Ireland, which is part of the UK.
How do I use my US cell phone in Ireland?
The cheapest way is to install an Ireland eSIM rather than pay your home carrier’s roaming fees. Carriers like Verizon and T-Mobile US charge high data roaming rates abroad, so a prepaid travel eSIM is far cheaper. Buy the plan before you fly, install it on home Wi-Fi, then in Ireland switch your cellular data over to the new eSIM and turn on data roaming for that line. Keep your US line on for calls and 2FA texts if you want, but set its data to off to avoid roaming charges. Any unlocked iPhone or Android from the last few years handles this with dual SIM.
Is there a better eSIM than Airalo for Ireland?
Airalo is a solid, well-known eSIM provider, but it isn’t always the cheapest or best for Ireland. For this trip we rank eSIM4 above Airalo on value, since eSIM4’s plans tend to be slightly less expensive for the same data while still using strong Irish networks. Airalo is still a good backup and a reasonable choice if you want a single app for multiple countries. Compare the data allowance and price per GB in the table above before you buy.
Related Guides
Crossing the border or extending your trip? Start with our best eSIM for the UK guide. It’s the must-have if Northern Ireland (Belfast, the Giant’s Causeway) is on your itinerary, since the north runs on UK networks. Heading further into Britain? See our best eSIM for Scotland guide. And if you’re touring multiple countries, a single multi-country best eSIM for Europe plan covers the whole EU on one eSIM.
About the author: Peter Moore
eSIM Content Writer at eSIM4
Peter Moore has spent more than seven years in telecommunications marketing, working across mobile apps, SMS services, international calling, and eSIM technology. He now writes about eSIMs and travel connectivity full-time, sharing what he’s learned to help travellers cut through provider marketing and pick what actually works.
