ByteSIM does not provide a truly unlimited data eSIM for travelers in Serbia. All plans that include “Unlimited” in the name actually allow 1 GB of high‑speed data before the speed is throttled to 10240 kbps; the remaining data continues to be usable but at reduced speed.
Travelers who need more data can choose from ByteSIM’s fixed‑data plans. For example, the “Serbia 50GB for 3 days” plan offers 50 GB of high‑speed data for 3 days at $79.00 USD, while the “Serbia 50GB for 30 days” plan provides the same data allowance for 30 days at $92.90 USD. These plans do not include throttling that occurs after a lower cap and are available at fixed prices.