ByteSIM does not provide a truly unlimited high‑speed data eSIM for New Zealand. All plans that carry “Unlimited” in the name actually cap the user at 1 GB of high‑speed data (the 1‑day plan gives 1 GB, the other plans provide 1 GB/day) and, once the limit is reached, the speed is throttled to 10240 kbps. For travelers who need more data, ByteSIM offers fixed‑data plans such as the 50 GB options that are valid for 3 to 15 days; these provide a larger high‑speed allowance and can be more cost‑effective unless very heavy data usage is expected.