ZenSim does not provide a truly unlimited data eSIM for Estonia. The plans that carry the word “Unlimited” in their name actually grant 3GB of high‑speed data per day and then reduce the speed to 1000kbps once that daily limit is reached.
Travelers who need a larger, unthrottled data allowance can choose from ZenSim’s fixed data plans. For example, the 40GB plan valid for 30 days or the 20GB plan valid for 15 days give a fixed amount of high‑speed data without the daily cap or speed reduction. These fixed data plans are often more cost‑effective for users who consume a lot of data.