Product info
Dublin eSIM plans
| Unlimited data · 5 days | $15.99 | Buy eSIM |
| Ohayu recommendsUnlimited data · 10 days | $27.99 | Buy eSIM |
| Unlimited data · 15 days | $37.99 | Buy eSIM |
| Unlimited data · 30 days | $49.99 | Buy eSIM |
| 3GB prepaid eSIM · 14 days | $7.49$2.50 / GB | Buy eSIM |
| 5GB prepaid eSIM · 30 days | $10.49$2.10 / GB | Buy eSIM |
| 10GB prepaid eSIM · 30 days | $17.49$1.75 / GB | Buy eSIM |
| 15GB prepaid eSIM · 60 days | $21.79$1.45 / GB | Buy eSIM |
| 20GB prepaid eSIM · 90 days | $25.99$1.30 / GB | Buy eSIM |
| 50GB prepaid eSIM · 90 days | $58.49$1.17 / GB | Buy eSIM |
You can install your eSIM before the trip and activate it when you arrive in Ireland. Validity starts after eSIM activation.
Plan details
How much mobile data you need
What's the best eSIM for Dublin?
A long weekend – 3 GB
Maps, pubs, walking the city.
A week in Ireland – 10 GB
Driving the west, Wicklow, Galway.
Ireland plus Europe – 20 GB
EU roaming on the same plan.
Working from Dublin – Unlimited
Working off the phone all day.
Coverage and network
Coverage city versus the west
Ireland mobile networks
Ireland averages about 84 Mbps and sits 57th globally, but Dublin measures around 158 Mbps - close to twice the national figure. That gap is the story of Irish mobile coverage: the capital is quick and the rural west is not.
Speedtest Global Index · Mobile · Dublin · June 2026
Download
157.51 Mbps
Upload
15.64 Mbps
Latency
17 ms
Global rank
#54 of 98
Dublin, specifically
- City centre, Temple Bar, Docklands: Strong 5G. The Docklands in particular are among the best-covered square kilometres in the country, which is what happens when several large tech companies base themselves there.
- The DART and the Luas: Both hold a signal along their routes. The DART run out to Howth or down to Bray stays connected the whole way, and the coastal views are the reason to look up from the phone anyway.
- Trinity, the Guinness Storehouse, Kilmainham: All covered. The older stone buildings can be weak inside - the Long Room at Trinity and the gaol cells at Kilmainham both drop.
- Out to Wicklow and Glendalough: The towns and the main roads are fine. In the Wicklow Mountains the valleys shadow the signal and Glendalough itself sits in a steep glacial valley where reception is unreliable.
- The west coast: The Cliffs of Moher and the Ring of Kerry are covered at the visitor centres and along the main routes, with real gaps on the smaller roads and in Connemara. This is where the national average comes from rather than Dublin's number.
The Republic, and the EU
The plan covers the Republic of Ireland, and as an EU member the same terms carry into any other EU country. It does not cover Northern Ireland.
How to install eSIM
Connected in 3 steps
- 01
Buy before you fly
Choose your data plan before your trip.
- 02
Download & install
Log in to your account, tap your eSIM, and follow the on-screen instructions.
- 03
Land & activate
Activate when you arrive in Ireland. Turn on roaming for the eSIM and it connects to a local network.
Before you buy, make sure your phone supports eSIM — see Ohayu compatible devices list or dial *#06#. It's a free request to your phone's settings. If you see the EID number — your phone is eSIM-compatible.
Arriving in Dublin
Airport Wi-Fi at DUB
Dublin Airport's free Wi-Fi is unlimited and needs no registration or sign-up - connect and you are on, in both terminals. One of the more painless airport networks in Europe.
Side by side
Dublin eSIM Comparison
Indicative comparison based on publicly listed Ireland plans as of August 2026. Competitor pricing and policies change - check their sites for current terms.
Frequently asked questions
Does the plan work in Belfast or at the Giant's Causeway?
No, and this is the one that catches people out. Northern Ireland is part of the United Kingdom, and since Brexit the UK sits outside EU roaming - so an Irish plan stops at the border even though there is no checkpoint to tell you that you have crossed.
Belfast is two hours from Dublin and the Causeway is a standard day trip, so if that is on your itinerary you need a UK plan as well. Your phone may switch to a Northern Irish network somewhere around Dundalk without announcing it.
Where to buy a SIM card in Dublin?
Vodafone, Three and Eir have shops on Grafton Street and Henry Street, and the newsagents sell prepaid starter packs. Ireland does not require SIM registration, so it is genuinely a two-minute purchase - one of the easier countries in Europe for this.
Is Dublin faster than the rest of Ireland?
Considerably. Dublin measures about 158 Mbps against a national average near 84, so if you are working from the city you will not have problems. Driving the west is a different experience, and Connemara and the smaller Kerry roads have genuine dead stretches.
eSIM not working in Dublin?
If you have driven north, check the network name - you may be on a UK network in Northern Ireland, which this plan does not cover. In the city, set Ohayu as your mobile data line, allow roaming, then toggle Airplane mode. Chat and support@ohayu.com are open 24/7.
