eSIMCard does not provide a truly unlimited data eSIM plan for Guernsey. The plans that carry “Unlimited” in their name actually include a daily cap of 1GB or 2GB; once that quota is reached the data speed drops to 512 kbps or 2000 kbps, meaning the plan is not unlimited in the sense of providing high‑speed data without limits. Therefore no unlimited data option is available.
If a larger data allowance is desired, fixed‑data plans are an alternative. For example, a 50GB plan for 30 days costs $31.39 USD and a 35GB plan for the same period also costs $31.39 USD. These plans provide the same amount of high‑speed data over the validity period without throttling after a daily cap, which can be more cost‑effective for heavy data users.