AdventureSIMs eSIM Data Plans for Guernsey

AdventureSIMs does not provide an unlimited data eSIM plan for Guernsey. Their catalog for the island consists of fixed‑data options, including a 50GB plan valid for 180 days, a 20GB plan for 30 days, a 20GB plan for 90 days, and a 10GB plan for 30 days. Each of these packages allows tethering and operates on 5G networks, covering Guernsey (and in some cases additional European countries).

Choosing a fixed data plan can be more cost‑effective for most travellers, unless you anticipate using significantly more data than the maximum allowance of any single plan. The 50GB 180‑day offer and the 20GB 90‑day plan represent the larger data buffers available from AdventureSIMs for Guernsey.

AdventureSIMs does not offer a Guernsey eSIM plan with a local phone number or SMS capability. Their Guernsey plans are data‑only, so travelers will need to rely on VoIP or messaging apps over the data connection for calls and text. Apps such as WhatsApp, Telegram, and iMessage can usually be used in Guernsey, but availability can vary and should be confirmed before purchase.

AdventureSIMs offers five single‑country plans and eight multi‑country plans for Guernsey. The plans vary in price from roughly $4.75 to $92.78 and in data cap from 1 GB up to 50 GB. Validity periods range from 7 to 180 days, and several of the plans allow tethering.