Which carriers matter, what buying a SIM involves, and when an eSIM is the smarter move.
Reliable mobile internet at better prices than most travel eSIMs, with polished iOS and Android apps and support for making and receiving phone calls.
One of the biggest travel eSIM brands, with a very large destination catalog.
Known for unlimited-data plans in many destinations, at a higher price per gigabyte.
EU roaming does not always include the UK or Northern Ireland; check the plan before crossing the border.
Best choice for broad coverage, including rural areas.
A solid alternative; compare current prepaid offers before buying.
Strong in major cities, with weaker rural coverage.
A solid alternative; compare current prepaid offers before buying.
A solid alternative; compare current prepaid offers before buying.
A solid alternative; compare current prepaid offers before buying.
A standard prepaid SIM normally does not require formal identity registration.
Guac eSIM covers Ireland with data plans starting from $1.50 per GB and instant activation, so your phone is online the moment you land. Airalo and Holafly are popular alternatives.
SIM cards and eSIM in Ireland