AlpineSIM eSIM Data Plans for Guernsey

AlpineSIM does not provide a truly unlimited data eSIM for Guernsey; every plan listed under the “Unlimited” label has a fixed data allowance such as 500MB/day or 1GB/day. These are limited‑data plans that offer a fixed amount of high‑speed data before the speed is reduced, so they are not unlimited in the usual sense.

Instead, AlpineSIM offers fixed data eSIMs that may suit different travel needs. For example, a 50GB plan is available for 180 days at $97.63 USD, while a 20GB plan can be purchased for 30 days at $40.05 USD, and a 10GB plan is also available for 30 days at $28.53 USD. Choosing a fixed‑data plan can be more cost effective unless a traveler requires high‑volume data usage.

AlpineSIM does not sell a Guernsey eSIM that includes a phone number or SMS capability. The provider offers only data‑only eSIMs for Guernsey. Travelers who need to communicate while abroad can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, which provide voice and messaging without the need for a local phone number or SMS service.

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.