ZenSim does not offer a true unlimited data eSIM for Zambia. The only plan that includes “Unlimited” in its name—Zambia Unlimited STANDARD – 5 Days—provides a fixed 3 GB per day of high‑speed data; once that amount is exhausted the speed is reduced to 1000 kbps. Therefore, an unlimited data plan is not available.
Travelers can instead choose from fixed data plans that provide large data allowances. For example, Zenith offers a 20 GB plan lasting 15 days or a 10 GB plan lasting 30 days. These fixed bundles give travelers a predictable amount of high‑speed data, and they are often more cost‑effective than a plan that throttles after a certain threshold.