ESIM.DOG does not provide a truly unlimited data eSIM for Antigua and Barbuda. The only plan that carries “Unlimited” in its name offers 500 MB of high‑speed data and, once that limit is reached, speeds are throttled to 384 kbps. After the 500 MB is used, all remaining data is still available but at the reduced speed, so it is not an unlimited high‑speed plan.
Instead, ESIM.DOG offers several fixed‑data options that may better suit most travelers. Large‑data plans such as 30 GB, 20 GB, 15 GB, and 10 GB are available for 30 days and include tethering. These plans are usually more cost‑effective for heavy data users, and the data does not change speed once the allowance is exceeded.