abesteSIM eSIM Data Plans for Guernsey

abesteSIM does not offer a plan that provides unlimited high‑speed data for Guernsey. The available options are fixed data plans, each with a hard data cap that must be used within a specified validity period.

Travelers can choose from plans such as the 30‑day Guernsey plan with 30 GB of high‑speed data or the 30‑day 20 GB plan. Both plans include tethering and are available at 5G speeds, though after the data allowance is exceeded the speed is reduced to 128 kbps. These fixed‑data plans offer a more predictable cost structure for most users.

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.