BetterRoaming does not provide an unlimited data eSIM for Eswatini (Swaziland). The available options are fixed data plans that must be used within a set validity period. For example, a 10 GB plan is valid for 30 days and costs $68.99 USD, while 5 GB and 3 GB plans are also available for 30 days at $34.99 USD and $23.99 USD respectively.
Choosing a fixed data plan can be more cost‑effective for most travelers, unless the user is an extremely heavy data consumer who would benefit from an unlimited plan.