eSIM2Me does not provide an unlimited data eSIM for Serbia. All of its plans for the country have a defined data cap, such as the Global Orange 100GB plan that is valid for 30 days or the Europe & Balkans 50GB plans that are available for 3, 5, 7, or 10 days.
If a traveler needs a large amount of data, choosing one of these fixed data plans can be more cost‑effective than a pay‑as‑you‑go option, unless the user is an extremely heavy data consumer who would benefit from an unlimited plan.