simpleSIM does not provide an unlimited‑data eSIM for Jersey. All of the plans listed for Jersey have a fixed data allowance, ranging from 10GB to 20GB for the larger fixed bundles and from 1GB per day for the “Unlimited”‑named daily plans. The “Unlimited” labels are misleading; those plans give 1GB per day of high‑speed data, after which the speed is reduced to 384 kbps, and they do not allow unlimited high‑speed usage.
For travelers who need more data than 1 GB per day, simpleSIM offers fixed data plans such as the 20GB Jersey plan (valid 30 days, $33.55 USD) or the 10GB Jersey plan ($22.36 USD, 30 days). These plans provide a larger, capped amount of high‑speed data without post‑limit throttling. Assuming a heavy data‑user, a fixed data plan may be more cost‑effective than the daily “Unlimited” options.