No, Rufly does not provide a truly unlimited data eSIM for Brazil. The plans marketed under the “Brazil Unlimited” name are fixed‑data packages that offer 500 MB of high‑speed data each day for either 7 days or 15 days of validity. After each day’s quota is used, the speed throttles to 5 Mbps per the fair‑usage policy. While these plans can be seen as “unlimited” in advertising, they are not high‑speed data without limits and do not cover the entire duration unconditionally. If a traveler needs a large amount of data, they can choose one of these fixed plans or consider augmenting their balance with the Pay‑as‑you‑go option.