MeSIM does not provide a true unlimited high‑speed data eSIM for Slovenia. Plans that carry the word “unlimited” are actually fixed‑allowance plans, offering a set amount of high‑speed data such as 500MB/day, 1GB/day, 2GB/day or 3GB/day. After that allowance is used, the speed drops to a throttled level of either 384kbps or 512kbps, so the data is not technically unlimited.
For travelers who need large amounts of data, MeSIM offers fixed data plans that provide a fixed quantity of high‑speed data. Examples include a 500GB plan for 90 days and a 100GB plan for 180 days. These plans give a large data allowance, but the connection ends instead of being throttled once the balance is depleted.