eSimfly eSIM Data Plans for Guernsey

The eSimfly catalogue for Guernsey does not include any truly unlimited data eSIM plans. The only plan that carries the word “Unlimited” in its name is the O2 Unlimited (International) plan, which actually provides 35 GB of high‑speed data; after that amount the speed is typically throttled, though the exact reduced speed is not listed.

If an unlimited option is required, a fixed‑data plan can be considered instead. For example, eSimfly offers a 200 GB plan valid for 31 days and a 120 GB plan valid for 30 days, both of which include tethering and cover Guernsey and neighboring countries. These large‑data plans may be more cost‑effective for travellers who need substantial data without the heavy usage costs that would apply to truly unlimited offerings.

eSimfly offers a variety of Guernsey eSIM plans that include a phone number and SMS capability. The available plans run from 15 days to 31 days, have data caps ranging from 20 GB to 200 GB, and are priced between $19.62 and $65.22 USD.

All of the plans listed provide a phone number with a dialing code of +33 (French) or +44 (British), and each plan supports inbound and outbound voice calls as well as inbound and outbound SMS. The phone number is not a local Guernsey number but one from France or the United Kingdom. Travelers who need specific call or messaging functions should confirm details directly with eSimfly.

eSimfly offers 6 single‑country data plans that cover Guernsey, in addition to 36 multi‑country plans that include the island. The plans range in price from roughly $3.56 to $121.38 and provide data amounts between 1 GB and 200 GB, with validity periods spanning 5 to 365 days. Some of the plans allow tethering.