nextSIM does not provide a truly unlimited data eSIM for Mauritania. All plans branded “Unlimited” list a daily high‑speed data allowance decade 1GB per day for the Standard tier and 2GB per day for the Plus tier, after which the speed reduces to 512kbps or 2000kbps respectively.
Instead, nextSIM offers fixed data plans that can be cheaper for heavy‑data users. For example, the 20GB 30 days Africa plan provides 20GB of high‑speed data, the 10GB 30 days Mauritania plan offers 10GB, and the 5GB 30 days Mauritania plan delivers 5GB before the speed drops. These options give travelers a large amount of high‑speed data and remain more cost‑effective than purchasing multiple short‑duration “Unlimited” plans.