Saily does not offer a true unlimited data eSIM for Montenegro. The only plan that carries “Unlimited” in its name, Global UNLIMITED 30 days, actually provides 30GB of high‑speed data, after which the speed is reduced to 1024kbps. Because the data cap is still 30GB, the plan is not unlimited in the sense of offering unrestricted high‑speed data.
Travelers who need a large amount of data can choose one of Saily’s fixed‑data plans that are available for Montenegro, such as 20GB for 30 days at $35.99 USD or 10GB for 30 days at $21.99 USD. These plans provide a set amount of high‑speed data without a throttling speed and may be more cost‑effective unless a user requires an extremely heavy data volume.