ZenSim does not provide a true unlimited data eSIM for Ireland. The plans that include “Unlimited” in the name give a fixed 3GB per day allowance, after which a reduced speed of 1000 kbps applies. This limits overall data use rather than offering unlimited high‑speed data.
For travelers who need a larger, more cost‑effective data set, ZenSim offers fixed data plans such as the 40 GB 30‑day plan or the 20 GB 15‑day plan for Ireland, which provide a hard data cap without reduced speed penalties. These fixed plans may be more suitable for most users than the limited‑speed “Unlimited” option.