eSIMCard does not provide a truly unlimited high‑speed data eSIM for New Zealand. All of the plans labeled “Unlimited” have a fixed data allowance—ranging from 1GB to 2GB per day—and once the cap is reached the data speed is reduced to 512kbps or 2000kbps. The unlimited naming refers only to the validity period or the availability of tethering, not to unrestricted data usage.
For travelers who need a large amount of data without caps, eSIMCard offers fixed‑data plans such as the 100GB for 30 days at $92.43 USD or the 100GB for 180 days at $112.73 USD. These options provide a substantial data supply before any throttling occurs and can be more cost‑effective for heavy data users.