Compare eSIM plans for Jersey

Jersey has one of the largest tidal ranges anywhere, and at low water the island grows outwards across a moonscape of rock and gully that was seabed a few hours earlier. That is the backdrop to every practical decision here, including the connectivity ones. Three carriers, Sure, JT and Airtel-Vodafone, blanket the island with 4G and 5G on a landmass you can cross in half an hour (sources: Internet Society Pulse, ITU DataHub). You will not struggle for signal. You can absolutely misjudge a tide table.

• ●The walk out to Seymour Tower across the south-east reef is the set piece, done with a guide, on a timed window, with the water returning behind you faster than it looks. The causeway to Elizabeth Castle off St Helier works on the same principle at smaller scale. Signal reaches most of it, which is reassuring rather than a substitute for having the times written down.
• ●On dry land, everything is straightforward. St Helier, Mont Orgueil above the harbour at Gorey, St Brelade's Bay, the lighthouse at La Corbière on the south-west point, the cliff path to Plémont, the fishing cove at Rozel: all comfortably covered, as are the Jersey War Tunnels bored into the hillside.
• ●Two things to plan for. Boat trips to Les Écréhous, the reef islets out towards France, run on tide and swell rather than a timetable. And because the Normandy coast is only about twenty kilometres away, a handset on the east or south coast will sometimes latch onto a French network, which can quietly move your usage onto a different line of your plan. Selecting a Jersey carrier manually settles it.

Sources: Internet Society Pulse: Jersey, ITU DataHub: Jersey, Ookla Speedtest Global Index, Visit Jersey