nextSIM provides a variety of data plans that cover Spain.
Within its catalog the carrier offers 21 single‑country plans and 36 multi‑country plans that include Spain.
The plans vary widely in price—from about $1.64 for a 1 GB option up to roughly $1,287.33 for a 50 GB option. Their validity periods range from a single day to a full year, allowing travelers to choose a plan that matches the length of their stay.
Some plans are structured around a fixed data amount, while others apply a daily data cap (for example, 512 MB or 2 GB per day) to help manage balance between consumption and local roaming speeds. This mix gives travelers flexibility between high‑cap, long‑term data bundles and more controlled, day‑by‑day access.