Compare eSIMs for Guernsey 2026

Sure Mobile and Vodafone are the local networks named behind Guernsey’s travel eSIM offers, with Sure Mobile listed first for reach. AirHub, RedEx eSIM, Bloomy eSIM, MicroESIM, eSimCard and iroamly have particularly deep catalogues, but most major providers sell here, so a brand’s presence alone narrows the choice little. The useful differences are how much data a plan includes, how long it lasts and what options remain if the allowance runs out; a familiar name does not establish which bundle fits the trip.

Sure Mobile and Vodafone are the Guernsey networks named in travel-eSIM providers’ published network details. That creates a choice beneath the eSIM, although travellers do not usually select the operator directly. Instead, the provider’s own network listing determines which operator is associated with the eSIM you buy. Checking that pairing in advance can therefore tell you more about the intended local connection than the eSIM brand alone; it is not something you need to discover after arriving.

A zero-cost data option is listed for Guernsey, but it is a small trial allowance rather than a usable holiday plan. It is generally conditional on registering with the provider and may be limited to one per customer. That makes it useful for getting online briefly after arrival or checking coverage, but not for normal mobile use throughout a visit. Guernsey has broad eSIM availability, yet free data remains an exception rather than the standard offer.

Many major travel eSIM brands include an unlimited option for Guernsey, so this is a crowded part of the market. The catch is that “unlimited” means access continues after the fast-data allowance is used, but at reduced speed; depending on the plan, normal speeds return each day or remain restricted for the rest of the plan. That can make video difficult and maps slower. Compare the allowance and reset terms rather than relying on the label.