eSIM Guernsey
Premium eSIM for Guernsey. Fairly priced. No SIM swaps.
Data Plans for Guernsey
All 5 plans have fast network routing
Our Picks for You
Hand-selected based on value, price, and coverage
Most travelers · balanced usage
30 days validity
Sure
Short trips · light usage
15 days validity
Sure
Heavy usage · longer stays
30 days validity
Sure
7 days validity
Sure
30 days validity
Sure
How It Works
Purchase Before Departure
Buy your eSIM plan before boarding your flight to Guernsey.
Install the eSIM Profile
Scan the QR code in your phone's settings to install the eSIM profile.
Activate on Arrival
Activate when you arrive in Guernsey and enable Data Roaming. Your phone will connect automatically.
Tip: Book the German Underground Hospital timed entry and Hauteville House tours before arriving — both have limited daily capacity and the WWII tunnel complex is Guernsey's most visited attraction.
Plans Summary
5 plans
· from
Tip: Most travelers choose 5–10 GB for a 7–10 day trip
Frequently Asked Questions
Does coverage extend to Herm and Sark?
Herm Island has basic Sure coverage. Sark is a separate jurisdiction without Sure coverage — bring a separate SIM or rely on accommodation Wi-Fi on Sark.
Is there coverage on the Guernsey cliff paths?
Yes — the coastal footpaths from Pleinmont to Petit Port have Sure 4G coverage throughout.
What's the best way to visit the German Underground Hospital?
Book timed entries in advance — it's the island's most popular attraction. Coverage exists outside the entrance; the tunnel interior has no signal, so download digital guides beforehand.
Does EU roaming apply in Guernsey?
No — Guernsey is a British Crown dependency, not part of the EU or the UK. Standard roaming rates apply for EU-based SIMs.
What speeds can I expect in St Peter Port?
Sure delivers 20–60 Mbps on 4G in St Peter Port and the main towns.
What ferry connections does Guernsey have?
Condor Ferries connect St Peter Port to Poole and Portsmouth. Trident runs island ferries to Herm and Sark. Download the Condor app for timetables.
Can I visit Alderney with this eSIM?
Alderney is the most northerly Channel Island with its own telecom infrastructure. Check if your plan extends to Alderney — it may require a separate arrangement.
Is there coverage at Castle Cornet?
Yes — Castle Cornet and St Peter Port harbour area have full Sure coverage.
Guernsey is part of these regional plans
Neighbouring countries
eSIM Guide for Guernsey
Your eSIM connects to major carriers in Guernsey:
Available networks: 4G
Guernsey is a British Crown dependency in the English Channel, 50km off the Normandy coast — a small, prosperous island known for its WWII German Occupation history, cliffside walks, and tax-haven financial status. Sure provides 4G coverage across the island, supporting seamless navigation for Castle Cornet, Hauteville House (Victor Hugo's exile home), and the cliff paths of the west coast. Data is essential for booking the Liberation Museum, navigating the coastal footpaths with digital guides, and checking ferry times from St Peter Port to the other Channel Islands.
Sure's 4G covers the full island — St Peter Port (the capital), St Sampson, and the main parishes. The coastal footpaths from Pleinmont headland to Petit Port Bay have coverage throughout. Herm Island (15 minutes by ferry from St Peter Port) has basic coverage. Sark (the car-free island) is a separate jurisdiction with no Sure coverage.
Castle Cornet in St Peter Port harbour has full coverage. The Little Chapel — a miniature mosaic chapel covered in seashells, one of the world's smallest chapels — has coverage. The German Underground Hospital at La Vassalerie, an extraordinary WWII tunnel complex dug by forced labour, has coverage outside but not underground.
Guernsey's famous beaches — Cobo Bay, Vazon Bay, Rocquaine Bay on the west coast — all have Sure coverage. The island is 15km across so coverage is complete for all main areas.
Guernsey uses the British pound but has its own Guernsey pound notes (accepted locally but not in mainland UK). English is spoken. The island has a rich WWII history — the only British territory occupied by Germany.