ZenSim does not provide a truly unlimited data eSIM for Nigeria. The plan titled “Nigeria Unlimited STANDARD – 5 Days” actually offers 3GB of high‑speed data per day and reduces speed to 1000kbps after the limit is reached, so it is not an unlimited plan.
Instead, ZenSim offers several fixed data plans for Nigeria. Examples include 20GB for 15 days, 20GB for 30 days, 10GB for 15 days, 10GB for 30 days, and 5GB for 15 days. These plans give a set amount of high‑speed data that must be used within the validity period and can be more cost‑effective unless the traveler is an extremely heavy data consumer.