abesteSIM eSIM Data Plans for Guernsey

abesteSIM does not provide a truly unlimited high‑speed data eSIM for Guernsey.
The only plan labeled with “Unlimited” offers a daily allowance of 1 GB; after the 1 GB limit is reached the speed drops to 5000 kbps, so it is not an unlimited plan in the traditional sense.
For travelers who need more data abesteSIM offers fixed‑data options, such as a 30‑day, 30‑GB plan and a 30‑day, 20‑GB plan, both 5G with reduced speed 128 kbps after the data cap. Choosing a fixed plan may be more cost‑effective 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.