No, nextSIM does not provide a truly unlimited data eSIM plan for Spain. All of the plans listed for Spain have a specified data cap, ranging from 1 GB per day to 100 GB for a 30‑day period. After the allocated data is used, the speed is reduced to a lower rate, such as 512 kbps or 2000 kbps, rather than offering unlimited high‑speed data.
Travelers who need a large amount of data can choose from the fixed data plans that offer higher allowances, such as the 100 GB 30‑day plan or the 100 GB 60‑day plan. These plans provide a substantial data budget for the validity period and can be more cost‑effective for heavy data users compared to repeatedly topping up a smaller data bundle.