No. yaySIM does not provide an unlimited data eSIM for Spain. The available options are fixed data plans that cap the amount of high‑speed data you can use within a set validity period. For instance, the ES_50_30 plan offers 50GB for 30 days, and the ES_50_180 plan provides 50GB for 180 days. Those examples illustrate the fixed‑data offerings that allow travelers to choose a plan sized to their expected usage. If an user needs more data than these caps, the cost‑effective approach is to purchase a larger fixed plan or to add credit, rather than relying on an unlimited product that is not available from yaySIM.