eSIM for Ireland

eSIM, roaming or a local SIM: which suits an Irish trip

There are three common ways to get online in Ireland. Each one works; the right choice depends on where your own SIM comes from, how long you are staying and how much you want to set up after landing.

Northern Ireland is in the UK: what that means for your plan

The island of Ireland is split between two countries. The Republic of Ireland uses the euro and is in the EU. Northern Ireland, with Belfast, Derry/Londonderry, the Giant's Causeway and the Mourne Mountains, is part of the United Kingdom and uses the pound sterling. The border is open and there are no checkpoints, so it is easy to cross without noticing, but mobile networks and roaming rules follow the countries, not the island.

For your eSIM this means a plan for Ireland is designed for the Republic. If your itinerary includes Northern Ireland, check the coverage list on the plan page before you buy. If you are spending real time in the North, a United Kingdom eSIM or a Europe plan that lists both countries is the simpler option. EU visitors should also know that the UK is outside the EU's roaming rules, so Roam like at Home does not automatically cover Belfast.

• Day trip from Dublin to Belfast or the Causeway Coast: check whether your plan covers the UK; if not, a short UK plan or a multi-country plan avoids surprises.
• Driving along the border in Donegal, Leitrim, Cavan or Louth: phones sometimes connect to a network on the other side of the border. Keep an eye on which country your phone shows.
• Flying into Belfast and driving south: install a plan that covers both countries before you leave home.

How much data you need for Ireland

Data needs depend more on habits than on the destination, but Irish trips have a few patterns. Road trips use a lot of navigation, the weather changes often enough that you check forecasts more than usual, and many travellers upload photos of the coast as they go. The figures below are rough averages to help you size a plan, not measurements.

• Maps and navigation: roughly 5 to 10 MB per hour of active driving with the map open, more if you search often or use satellite view.
• Messaging and email: very light, usually well under 50 MB a day for text and a few photos.
• Social media with photos and short videos: often 300 MB to 1 GB a day, depending on how much video autoplays.
• Video calls: roughly 500 MB to 1 GB per hour, depending on quality.
• Streaming music: about 40 to 150 MB per hour; streaming video in HD can use 1 to 3 GB per hour.

Set it up before you leave home

Installing an eSIM needs an internet connection, so do it at home or in the hotel the night before you fly, not at the arrivals gate. First check your phone supports eSIM and is carrier-unlocked; dialling *#06# shows an EID number on most eSIM-capable phones. After payment you get a QR code by email. Follow the install guide for iPhone, Samsung or Pixel.

• Label the new line something obvious, such as Ireland or Travel.
• Keep your home SIM as the line for calls and texts.
• Set the Spidot line as the line for mobile data.
• Leave data roaming off for your home SIM if you want to avoid roaming charges from your own provider.
• Download offline maps for areas you will drive through, as a backup for quiet stretches of coast.

Arriving in Ireland: first steps at the airport or ferry port

Most visitors arrive through Dublin Airport, with Shannon and Cork the other main international airports and Knock serving the west. Others come by ferry from Holyhead, Liverpool, Fishguard, Pembroke or France into Dublin, Rosslare or Cork. Wherever you land, the steps are the same.

• Switch off flight mode once you are allowed to.
• Turn on data roaming for the Spidot line. Our data roaming guide shows where the setting is on each phone.
• Wait a minute or two for the phone to register on a local network. Restarting the phone once often speeds this up.
• Open a map or a website to confirm data is working before you leave the terminal.

Coverage in Dublin, towns and the rural west

In Dublin, Cork, Galway, Limerick, Waterford, Kilkenny and other towns you can expect a mobile signal to be a normal part of the day. Coverage in Ireland broadly follows where people live, and much of the country is rural, with hills, bogland and long stretches of coast. In those places signal can be weaker or missing for a while, especially in valleys, on mountain passes and on remote headlands.

Your eSIM connects through local partner networks; on this plan that is Meteor and Three. The phone picks a network automatically, so in most places you do not need to do anything when you move around.

Using data on trains, buses and road trips

Iarnród Éireann (Irish Rail) runs intercity trains from Dublin to Cork, Galway, Limerick, Sligo, Westport, Waterford, Tralee and other towns, plus the DART commuter line along Dublin Bay. Bus Éireann and private coach companies cover routes the trains do not reach. On trains and buses you will move through areas of strong and weak signal, so downloads may pause in places; streaming playlists offline before a long journey helps.

• Dublin: the Leap Card is a reusable travel card for buses, Luas trams, DART and commuter trains, and several transport apps show live times.
• Map apps such as Google Maps and Apple Maps show most public transport routes and times in Ireland.
• Taxi apps are widely used in Dublin and the larger cities; in small towns you may find it easier to call a local taxi firm.
• Road trips: Irish roads drive on the left, rural roads can be narrow, and navigation apps sometimes choose small lanes. Check the route makes sense before you follow it into the hills.
• The M50 around Dublin uses barrier-free tolling; car hire firms explain how they handle it.

Hotspot, tethering and public Wi-Fi

You can share your eSIM data with a laptop or a travel companion's phone by turning on Personal Hotspot (iPhone) or Mobile Hotspot (Android). This is handy for a quick bit of work in a café or keeping a second phone online on a road trip. Tethering a laptop can use data quickly, because computers download updates and sync files in the background, so pause cloud sync and system updates while tethered.

Free Wi-Fi is common in Irish hotels, cafés, pubs, trains and some buses. It is useful, but networks are shared with strangers and are not always well secured.

• Prefer your own mobile data for banking, payments and logging in to accounts.
• Check you are joining the venue's real network name, not a lookalike.
• Look for https in the address bar and avoid entering passwords on pages that do not use it.
• Turn off automatic joining of open networks in your phone's Wi-Fi settings.

Practical tips for Ireland

A few local details make day-to-day life easier with a phone in your pocket.

• Payments: the Republic uses the euro and Northern Ireland uses the pound sterling. Contactless card and phone payments are very widely accepted, including in many pubs and small shops, but carry a little cash for rural places and honesty boxes at car parks or farm shops.
• Weather: conditions on the Atlantic coast change quickly. Check a forecast before cliff walks and boat trips, and expect the forecast to be wrong now and then.
• Emergency number: 112 and 999 both work in Ireland and Northern Ireland.
• Plugs: Ireland and Northern Ireland use the three-pin Type G plug, the same as Great Britain.
• Battery: navigation and photos drain batteries quickly in the cold and wind. A small power bank is worth packing for long driving days.

Combining Ireland with the UK or mainland Europe

Many trips pair Ireland with Great Britain or the continent: a ferry from Holyhead, a flight to London, Edinburgh or Paris, or a tour that includes Northern Ireland. A single-country plan means installing a second eSIM when you cross. A Europe plan covers 36 countries with one eSIM, so you install once and keep the same line as you move. Check the country list on the plan page to be sure every stop on your route is included, especially the United Kingdom.

If most of your time is in one country with a short hop to another, two single-country plans can also work well; you can keep more than one eSIM on most phones and switch the data line when you cross. See the United Kingdom, France and other destination pages for details.

Managing your data during the trip

It is easy to lose track of data on a busy trip. You can check how much data is left at any time, and if you are running low you can add more data without installing a new eSIM. To stretch a plan, set apps to upload photos only on Wi-Fi, turn off video autoplay in social apps and download playlists and podcasts before you set off each day.

If something is not working, restarting the phone and checking that data roaming is on for the Spidot line fixes most problems. If it does not, write to support@spidot.com with your order email and a short description.