Roamingo does not provide a true unlimited high‑speed data eSIM for Serbia. The only plan that carries the label “Unlimited” in its name is the Europe Unlimited for 1 day, yet it offers only 2GB of data. Because the data cap is limited, the plan is not considered unlimited in the strict sense; after reaching the 2GB threshold the speed is likely throttled to a lower rate, though the exact reduced speed is not specified.
For travelers needing higher data volumes, Roamingo offers fixed‑data packages such as the Serbia 20GB for 30 days and Serbia 10GB for 30 days. These plans provide a larger amount of high‑speed data for the period of validity, and when the allowance is exhausted the speed drops to a reduced rate. Choosing a fixed data plan can be more cost‑effective for most users compared to paying for a short “unlimited” plan that actually caps data at 2GB.