ByteSIM does not provide a truly unlimited data eSIM for Montenegro. The plans that carry the word “Unlimited” in their name actually grant 1GB of high‑speed data per day, and once that daily limit is reached the speed is throttled to 10000kbps. Therefore, these plans are not unlimited in the sense of offering unrestricted high‑speed data.
Travelers who need a larger data allowance can choose ByteSIM’s fixed data plans, such as the 50GB options that are valid for 3 to 15 days. These plans give a fixed amount of data without speed reduction and can be more cost‑effective for most users unless an extremely heavy data consumer requires an unlimited plan.