For most travelers, Airalo is your go-to eSIM provider in Ireland. Yesim also works, but Airalo has the best coverage and simplest setup. Holafly and local eSIMs (like Vodafone’s eSIM) aren’t practical for tourists—they require a local number to activate, which you won’t have.
Providers & Pricing
Airalo:€10 for 1GB/3 days (best value), €15 for 3GB/7 days. Works on all networks (piggybacks on Vodafone Ireland’s network).
Yesim:€12 for 1GB/5 days. Less reliable coverage than Airalo.
Network & Activation
All eSIMs use Vodafone Ireland’s network (best coverage in cities and rural areas). Activation is instant via Airalo’s app—just scan the QR code. For dual-SIM: Turn on your phone’s eSIM settings (Settings → Cellular → Add eSIM), then scan Airalo’s code. Your physical SIM stays active for calls.
Pro Tip
Don’t buy a physical SIM and eSIM at the airport. Airalo’s 1GB plan covers your first few days—no need for a local SIM until you’re settled.
Physical SIM: Buy & Recharge Guide
Buy a SIM at an airport? Bad idea. You’ll pay €30 for 2GB (vs. €5-10 elsewhere). Skip it. Here’s how to do it right.
Actual Operators
Vodafone Ireland: Best network coverage (especially rural areas).
Three Ireland: Strong in cities; cheapest plans.
eir: Solid coverage; often has airport deals (but overpriced).
Where to Buy (Avoid Airports)
Convenience Stores: Dunnes Stores (most reliable), Tesco Express, Lidl, Supervalu. Look for the "Mobile" section near checkout.
Carrier Shops: Vodafone Store (Dublin city center), Three Store (Dublin, Cork, Galway). Avoid airport branches.
How to Top Up (The Real Way)
Forget "recharge" – say "prepaid top-up card" at stores. Here’s where and how:
1. Convenience Stores (Dunnes, Tesco, Lidl)
What to ask: "I need a top-up card for 5GB data, please." (Not "recharge" – they’ll stare blankly).
Payment: Cash only (€5,€10,€20 cards). Cards are sold as "prepaid top-up cards," not "scratch cards." Vouchers cost €5 for 5GB (valid 30 days).
Pro Tip: Buy €20 cards—they’re cheaper per GB than smaller ones. If you’re in a hurry, ask for "a €20 top-up card for Vodafone."
2. Carrier Apps (Use If You Have Data)
Vodafone App: Works with foreign cards (Visa/Mastercard). Go to "Top-Up" → "Prepaid." Accepts international cards. (No EU number needed for app payments.)
Three App: Same as Vodafone—accepts foreign cards. But app is only in English (rare for Ireland, but true here).
eir App: Only accepts Irish mobile numbers. Skip it if you’re a tourist.
3. USSD Codes (No App Needed)
Vodafone:123# (check balance), 123*1# (buy data pack). Say "5GB" when prompted.
Three:333# (check balance), 333*1# (buy data pack). Say "5GB" to confirm.
eir:123# (check balance), 123*1# (buy data). Less reliable—use Vodafone or Three instead.
4. Online Top-Up
Vodafone Website:vodafone.ie → "Top-Up." Accepts foreign cards. (No Irish number needed for payment).
Three Website:three.ie → "Add Data." Same as Vodafone.
Common Problems & Fixes
Problem: Store clerk doesn’t understand "recharge."
Solution: Say "prepaid top-up card" + show them the card you want (e.g., "€10 for 5GB"). Point to the card display.
Problem: Card declined at app/store (foreign card issues).
Solution: Always use cash for top-up cards. Apps accept cards, but stores won’t—cash is king.
Problem: App only in Irish language.
Solution: Vodafone/Three apps are in English. If you see Irish, tap "Language" → "English." (eir app is the only one that’s hard—avoid it.)
Emergency Fix: Stuck Without Data
If you’ve run out of data and can’t top up:
Go to a Dunnes Store or Tesco Express. Buy a €5 top-up card (cash only).
If no stores nearby, ask at a pub or cafe—they often sell top-up cards (ask "Do you sell mobile
Flavia Voican · Updated 2026-04-10