4S eSIM eSIM Data Plans for Serbia

4S eSIM does not offer a true unlimited high‑speed data plan for Serbia. All plans that include “Unlimited” in their name, such as the Serbia 3GB Unlimited – 1 Days or the Serbia 20GB Unlimited – 5 Days, actually provide a fixed data allowance (3 GB, 20 GB, etc.) and after that limit the speed to 1000 kbps. The plans are called “Unlimited” only to indicate a no‑recharge design, not a data‑unlimited service.

If a traveler wants a larger ongoing data budget, 4S eSIM offers fixed‑data options. For example, the Serbia 5GB Unlimited – 5 Days plan supplies 1 GB per day for five days, and the Serbia 50GB – 5 Days plan provides 50 GB for five days without speed throttling. Choosing a fixed data plan can be more cost‑effective for most users unless they require an actual data‑unlimited experience.

4S eSIM does not provide a phone number or SMS capability for Serbia; only data‑only eSIM plans are offered. Travelers can use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection, but they should verify that these services are accessible in Serbia before purchasing a plan, as some destinations may block or restrict certain apps.

4S eSIM lists 54 single‑country plans for Serbia and 108 multi‑country plans that include Serbia in their coverage. The provider offers primarily fixed data‑cap plans, but there are also daily‑cap options for travelers who only need data for a few days. Overall, the plans cover a price range from about $1.56 to $195.83 and data caps from 714 MB to 50 GB.