AlpineSIM eSIM Data Plans for Guernsey

AlpineSIM does not provide a true unlimited data eSIM for Guernsey. The plans listed under the “Unlimited” name give fixed daily data allowances—such as 500 MB/day, 1 GB/day, or 2 GB/day—and do not offer high‑speed data without limits. After the allotted amount is used, the speed is typically throttled, although the specific reduced speed is not indicated in the available data.

If you prefer a fixed data package, AlpineSIM offers alternatives such as a 20 GB eSIM valid for 30 days at $40.69 USD or a 10 GB eSIM also valid for 30 days for $26.70 USD. These fixed‑data plans can be more cost‑effective, especially for heavy data users, because they provide a clear data allowance without the uncertainty of throttling after a daily limit.

AlpineSIM does not provide a Guernsey eSIM that includes a phone number or SMS capability; the provider offers only data‑only plans. Travelers can use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection, but should verify that those services are accessible in Guernsey before purchasing.

AlpineSIM lists 5 single‑country data plans and 32 multi‑country plans that cover Guernsey. The pricing for these options ranges from about $2.33 to $166.83, while the data caps vary from 500 MB up to 50 GB over validity periods that can be as short as one day or as long as 180 days. Some plans apply a daily data cap, delivering a fixed amount each day of the validity, whereas others offer a single, fixed amount that can be used at any point during the period. Many of the plans also allow tethering, enabling the data to be shared with other devices.