No. eSIMX does not offer an unlimited data eSIM for Zambia. The available plans are fixed data bundles, such as Zambia 10GB for 30 days, Zambia 5GB for 30 days, Zambia 3GB for 30 days, and Zambia 1GB for 7 days. These plans provide a set amount of high‑speed data that must be used within the specified validity period. For travelers who need a larger data allowance, the 10GB 30‑day plan is the largest option currently available.