The answer is no – KnowRoaming does not currently provide an unlimited data eSIM plan for Eswatini (Swaziland).
Travelers can, however, purchase fixed‑data options such as the Africa 5 GB 15 Days plan for $55.00 USD, the Africa 3 GB 10 Days plan for $40.00 USD, or the Africa 1 GB 7 Days plan for $15.00 USD. These plans are available for 15, 10, and 7 days respectively and cover Eswatini together with 30 other countries. The examples above represent a selection of the larger data packages offered and are not an exhaustive list; choosing a fixed data plan can be more cost‑effective for typical travelers unless they require extensive data usage that would exceed the available allowances.