esim0 does not provide an unlimited data eSIM for Tonga. The provider offers fixed data plans that must be used within a set validity period. Examples of the largest available options are the Tonga 20GB 30Days plan, priced at $101.99 USD, and the Tonga 10GB 30Days plan, priced at $49.99 USD. These plans give a hard data cap that must be consumed before the 30‑day validity expires.
Choosing a fixed data plan can be more cost‑effective for most travelers, especially if data usage is moderate. Unlimited plans are not available, so users who anticipate very high data consumption may need to consider topping up or purchasing additional data credits after the initial plan expires.