eSIM Esimatic pour Guernsey en 2026

Esimatic has not published which operators it uses in Guernsey, so the radio side is unknown rather than a sign of weak coverage; the table above is the practical reference for choosing a plan. Its traffic breaks out in Jersey, keeping the route to locally hosted services short and giving the connection a local IP, useful for banking or government apps. The large range makes sizing the real decision, with the risk of buying more data than a fortnight needs. Esimatic says top-up is available, so an exhausted plan can be extended rather than rebought.