nextSIM eSIM Data Plans for Guernsey

No, nextSIM does not provide a truly unlimited data eSIM for Guernsey. The plans that have “Unlimited” in the name are in fact capped at 1GB or 2GB of high‑speed data; once the limit is reached the speed drops to 512kbps or 2000kbps. Because of that reduction, these are not considered unlimited high‑speed data plans.

Instead, nextSIM offers several fixed‑data options that might suit heavy users. For example, the eSIM Guernsey 100GB 30Days Standard plan gives 100GB of data for 30 days, while the 50GB 30Days Standard and 20GB 30Days Standard plans provide 50GB and 20GB respectively for the same duration. These larger data allowances can be more cost‑effective for travelers who need sustained high‑speed connectivity in Guernsey.

nextSIM does not provide a Guernsey eSIM that includes a phone number or SMS capability. The only Guernsey eSIM plans offered by nextSIM are data‑only plans.

Travelers who need voice or messaging services can use VoIP applications such as WhatsApp, Telegram or iMessage over the data connection provided by the eSIM.

NextSIM provides 27 single‑country data plans that cover Guernsey and an additional 6 multi‑country plans that include Guernsey.
Some of the plans feature a fixed data amount for the entire validity period, while others impose a daily data cap—meaning you receive a set quantity of data each day rather than a single pool for all days.
The plans available for Guernsey vary in price from roughly $3.45 to $267.32 and offer data volumes ranging from 1 GB to 100 GB.