eSIMX does not provide any unlimited data eSIM plans for Serbia. All of the available eSIMX plans that cover Serbia have a set data cap and a defined validity period.
Travelers who need a large amount of data can choose from the fixed‑data plans listed by eSIMX. Examples include the Serbia 30GB 30Days plan, which offers 30GB of high‑speed data for 30 days, and the Global 100GB 30Days With Calls plan, which provides 100GB of high‑speed data for 30 days with additional calling minutes and SMS. These fixed plans can be more cost‑effective than adding multiple smaller data bundles, especially for users who do not consume data at a very high rate.