abesteSIM eSIM Data Plans for Guernsey

AbesteSIM does not provide a truly unlimited data eSIM plan for Guernsey. The only plan with “Unlimited” in its name is called eSIM Europe (49 Destinations) – 1 Day / Unlimited, but the data cap column shows 1GB/day, which means the plan offers a fixed amount of high‑speed data each day and the speed drops after the limit is reached.

If you need a larger data allowance for Guernsey, fixed data plans are available. For example, abesteSIM sells an eSIM Guernsey plan that supplies 30GB of high‑speed data for 30 days, and another plan that provides 20GB for the same period. These plans give a fixed quantity of data that must be used within the validity window and can be more cost‑effective for most travelers unless you are an extremely heavy data consumer.

abesteSIM does not provide an eSIM for Guernsey that includes a phone number or SMS capability. The provider only offers data‑only plans for that destination. Travelers can still use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection for calls and messaging, but they should confirm that these services are accessible in Guernsey before purchasing.

abesteSIM provides 40 single‑country plans and 55 multi‑country plans that include coverage of Guernsey. The plans come in two main types: fixed data caps ranging from 500 MB to 30 GB over validity periods of 1 to 60 days, and daily data cap plans that allow a set amount of data each day within the same validity window. Prices span from $1.11 to $64.66 USD, and many plans offer optional tethering with reduced speeds of 128 kbit/s or 5000 kbit/s where applicable.