No, nextSIM does not provide a truly unlimited data eSIM for Jersey. All plans labeled “Unlimited” actually contain a fixed data allowance, such as 1 GB per day or 2 GB per day, and after that limit is reached the speed is reduced to 512kbps or 2000kbps.
If unlimited high‑speed data is desired, the provider offers larger fixed‑data plans instead, such as a 100GB plan for 30 days or a 50GB plan for 30 days, which give full speed until the data cap is reached. These fixed‑data options are typically more cost‑effective for travelers who need a large amount of data without the speed throttling that accompanies the “Unlimited” branded plans.