Viasimo does not provide a genuinely unlimited high‑speed data plan for Réunion. The plans that carry the word “Unlimited” deliver a fixed allowance of 2 GB per day; once the daily quota is reached, the speed is throttled to 1 Mbps until the next day, and the validity clock begins with the first network connection.
Travelers who need a larger data volume can choose one of Viasimo’s fixed‑data plans, such as the 20 GB plan for 30 days or the 10 GB plan for 30 days. These plans offer full speed for their entire validity period and can be more economical than the daily “Unlimited” offering unless the traveler expects consumption well beyond the stated limits.