MeSIM does not supply a truly unlimited data eSIM for Austria. All plans contain a daily high‑speed data allowance—ranging from 500MB/day to 3GB/day—after which the speed is throttled to either 384kbps or 512kbps. The “unlimited” tag in the plan names refers only to the length of validity, not to an uncapped high‑speed data volume.
Travelers who need large amounts of high‑speed data can choose from several fixed‑data plans. For example, a 3‑day plan with 3GB/day of high‑speed data is available for roughly $12, and a 7‑day plan offering 2GB/day is also available. These plans provide substantial data for the period of validity but still cap usage per day.