eSIM for Guernsey — Instant 4G/5G Data Plans

Visiting Guernsey for a Channel Islands break, business trip, or coastal holiday? A MobiSIM eSIM for Guernsey gives you easy mobile data access without needing a physical SIM card. Whether you are staying in St. Peter Port, St. Martin, St. Sampson, Castel, Torteval, or exploring cliff paths, beaches, historic fortifications, and local markets, MobiSIM provides mobile data for maps, ferry schedules, accommodation details, messaging, restaurant searches, and travel updates. Choose a MobiSIM eSIM data plan for Guernsey and get 4G/5G coverage where available through supported local networks. Activation is quick and digital: after purchase, your QR code is sent by email, then you scan it and follow the setup steps on your device. Your existing SIM can remain active for calls while MobiSIM provides data during your stay.

Guernsey's mobile network is served by three main operators: Sure Guernsey, JT Guernsey, and Airtel-Vodafone Guernsey. 4G LTE coverage is available across St. Peter Port and most of the island's populated areas. Guernsey is a small island of approximately 65 square kilometres, which means coverage is generally consistent across the main settled and tourist zones. More remote coastal cliff paths, offshore areas, and the smaller dependency islands of Alderney, Sark, and Herm have their own network conditions and may have limited coverage depending on local infrastructure. MobiSIM connects through supported local networks to deliver reliable data throughout Guernsey's main areas during your visit.