ZenSim eSIM Data Plans for Serbia

ZenSim does not provide a truly unlimited high‑speed data eSIM for Serbia. The plans with “Unlimited” in the name still offer a capped amount of high‑speed data, specifically 3 GB per day for 10 days or 30 days. After that limit is reached, the plan’s speed is throttled, although the exact reduced speed is not listed.

Instead, ZenSim offers fixed‑data options that can be more cost‑effective. For example, a 20 GB plan for 10 days costs $30 USD, and a 20 GB plan for 30 days costs $33 USD. A smaller 10 GB plan for 10 days is available for $21 USD. Travelers who need large amounts of data can choose one of these fixed‑data plans rather than the capped “Unlimited” options.

ZenSim does not offer any eSIM plans for Serbia that include a local phone number or SMS services. Only data‑only eSIMs are available from this provider. Travelers who need to make calls or send messages can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection.

ZenSim provides eight single‑country data plans for travelers visiting Serbia. These plans vary from 3 GB to 20 GB of data and range in price from $17.00 to $68.00, with validity periods between 10 and 30 days. Some of the offerings include a daily data cap option, while others are fixed‑data packages; options that allow tethering are also available.