ZenSim eSIM Data Plans for Serbia

ZenSim does not provide a truly unlimited data eSIM plan for Serbia. All of its offers for Serbia have a fixed data allowance, even those labeled with “Unlimited” in the name; for example, the Serbia Unlimited STANDARD plans give 3GB of high‑speed data per day for a set number of days and after reaching the limit the speed is reduced.

Travelers can choose from fixed‑data plans that offer larger allowances, such as the 40GB plan valid for 30 days at $63.00 USD or the 20GB plan valid for 15 days at $30.00 USD. These options may be more cost‑effective for users who need significant data while traveling in Serbia.

ZenSim does not offer a Serbia eSIM that includes a phone number or SMS capability. All plans sold by ZenSim for Serbia are data‑only, with no inbound or outbound voice or text services.

Travelers can still use popular messaging and calling apps such as WhatsApp, Telegram, or iMessage over the data connection to communicate normally.

ZenSim has 13 single‑country plans that cover Serbia and 11 multi‑country plans that include Serbia as part of the network. The available packages range from $5.00 to $89.00 and provide between 1 GB and 40 GB of data, with validity periods from 5 to 30 days. Most plans use a fixed data amount, while a smaller subset – three daily data cap plans – reset the data allowance each day. Tethering is allowed on some of the plans, giving travelers extra flexibility when using multiple devices.