The best eSIM for Guernsey
A British Crown Dependency in the English Channel. Here is the plan we would pick today, the live pricing for every plan we track, and the practical things to know before you fly.
The lowest price-per-gigabyte we currently track for Guernsey. A solid fit for most one-to-two-week trips with maps, messaging, and the occasional photo upload.
| Provider | Data | Days | Price | $/GB | Get |
|---|---|---|---|---|---|
 GoMoWorld | 26GB | 30 | $29.99 | $1.15 | Get → |
| GoMoWorld | 17GB | 30 | $19.99 | $1.18 | Get → |
| GoMoWorld | 7GB | 30 | $10.99 | $1.57 | Get → |
| GoMoWorld | 1.7GB | 7 | $3.99 | $2.35 | Get → |
 Saily | 10GB | 30 | $26.99 | $2.70 | Get → |
| Saily | 5GB | 30 | $16.99 | $3.40 | Get → |
 Nomad | 10GB | 30 | $39.00 | $3.90 | Get → |
| Saily | 3GB | 30 | $11.99 | $4.00 | Get → |
 Virgin Connect | 50GB | 30 | $203.00 | $4.06 | Get → |
| Virgin Connect | 20GB | 30 | $85.50 | $4.28 | Get → |
| Virgin Connect | 10GB | 30 | $48.00 | $4.80 | Get → |
| Saily | 1GB | 7 | $4.99 | $4.99 | Get → |
| Nomad | 5GB | 30 | $25.00 | $5.00 | Get → |
| Nomad | 3GB | 30 | $15.00 | $5.00 | Get → |
 GigSky | 10GB | 30 | $51.99 | $5.20 | Get → |
 Roamless | 1GB | PAYG | $12.95 | $12.95 | Get → |
Prices are live and may change. Google Fi is excluded from the value ranking because it is a full phone plan rather than a travel data plan.
Sure Guernsey, JT and Airtel-Vodafone Guernsey all run 4G across the harbour town, Castle Cornet and the High Street shopping area. Sure has the widest 4G footprint on the island.
The cliff paths from Jerbourg Point to Petit Bot Bay, the beaches at Vazon and Cobo on the west coast and Fermain Bay are all covered. Slight signal dips at the deeper coves but generally consistent island-wide.
Sark, a separate Crown dependency reached by ferry from Guernsey, has its own basic coverage from Sure. The ferry crossing keeps signal close to both islands; mid-Channel coverage thins briefly. La Coupée and the smaller beaches are covered at the village.
Herm, the small car-free island, has Sure Guernsey coverage at the Mermaid Tavern, Shell Beach and the White House Hotel. The ferry from St. Peter Port stays connected throughout the short crossing.
St. Anne, Alderney's main town, has functional 4G from Sure and JT Alderney. The fortifications, the Mannez lighthouse and the WWII tunnels are covered; smaller coastal coves thin briefly.
St. Peter Port
- Arriving
- Guernsey Airport (GCI) is about 5 km from St. Peter Port, served by bus and taxi. The terminal has 4G from Sure, JT and Airtel-Vodafone. Crucially, Guernsey is a Crown dependency outside the UK and EU, so verify your plan explicitly covers the Channel Islands before relying on it, or expect international roaming charges.
- On the subway and rail
- Guernsey runs Guernsey Buses, and St. Peter Port is walkable; ferries link to Herm, Sark and Jersey. There is no rail. Coverage holds across the harbour town and the coastal cliff paths. The small island means you are rarely far from signal or a WiFi-equipped cafe.
- Free public WiFi
- Cafes, hotels and the harbour area provide WiFi, a useful fallback given the roaming complications. GCI airport has terminal WiFi. The island is small enough that a connected spot is always close by.
- Coverage in the city
- Sure Guernsey, JT and Airtel-Vodafone all run 4G across St. Peter Port, Castle Cornet, the High Street and the harbour, with Sure the widest. The coastal cliff paths are well covered. As a Crown dependency, Guernsey is not part of the UK or EU for roaming, a common source of surprise charges.
- If you prefer a local SIM
- Sure, JT and Airtel-Vodafone sell SIMs in St. Peter Port. The important point is that standard UK and EU plans often treat Guernsey as international, so confirm your eSIM specifically lists the Channel Islands, or buy a local SIM on arrival.
Grab an eSIM before you arrive in Guernsey to skip local SIM queues. Most urban areas offer 4G or better, while rural regions can slow down, so keep offline maps handy. Activating the eSIM in advance ensures you are connected the moment you clear customs.
Guernsey, a small Channel Island between England and France, offers solid mobile connectivity across its compact territory. Sure, JT, and Airtel-Vodafone provide 4G coverage that blankets most of the island, and the small geographic area means signal strength is generally consistent whether you are in St. Peter Port or exploring coastal cliff paths.
As a British Crown dependency, Guernsey is not part of the UK or EU, which has important implications for eSIM travelers. Standard UK and EU roaming plans may not include Guernsey, and some travelers are surprised by unexpected charges or lack of connectivity. Before visiting, it is essential to check whether your eSIM provider explicitly lists Guernsey in their coverage area. Most hotels, restaurants, and cafes offer Wi-Fi, and the island is small enough that you are rarely far from a connected location.
- Guernsey is not part of the UK or EU - verify your eSIM plan specifically covers the Channel Islands
- The island is small enough that 4G coverage is generally reliable everywhere
- Check for roaming charges before arrival - some UK plans treat Guernsey as an international destination
- Hotel and restaurant Wi-Fi is widely available as a supplement to mobile data
- If island-hopping to Jersey, Sark, or Herm, check coverage for each island separately
Average Data Cost
~$2-$5/GB
Network Quality
Good 4G across the island. Small territory means consistent coverage in most areas.
eSIM Availability
eSIM availability is limited. Crown dependency - not covered by UK or EU roaming regulations automatically.
Major Carriers
Recommended Providers for Guernsey
Plans for Guernsey
From $3.99
Plans for Guernsey
From $4.99
Plans for Guernsey
From $6.50
Plans for Guernsey
From $6.50
Plans for Guernsey
From $4.99
Plans for Guernsey
From $10.00
Pay-as-you-go: $10.00/GB
Plans for Guernsey
From $12.95
Pay-as-you-go: $12.95/GB
- 1
Buy and install at home on WiFi.
Installation is not the same as activation. You can install the Guernsey eSIM days ahead and only switch it on after you land, which avoids burning days of validity in transit.
- 2
Screenshot your current APN before you swap.
If you ever need to switch back to your home line quickly, that screenshot saves a support call from a foreign airport.
- 3
Decide on your dual-SIM strategy.
Keep your home line on for SMS-based bank logins, two-factor codes, and emergency calls. Set the travel eSIM as the data line only. Most modern phones can do both simultaneously.
- 4
Disable iMessage on the travel eSIM line.
Otherwise iMessage will try to re-activate against the new line on arrival and you will spend the first ten minutes troubleshooting it instead of finding the taxi rank.
- 5
Download offline maps for Guernsey.
Google Maps and Apple Maps both support offline regions. Pull them down on home WiFi so a flaky activation never leaves you without a route from the airport. Our offline maps guide walks through it step by step.
- 6
Activate at the airport, not before.
Once the validity timer starts it does not pause. A 15-day plan you turn on the morning of departure burns a full day of validity before you even land.
We are building this section from real, verified traveler submissions rather than stock testimonials, so it stays empty until we have notes we can stand behind. If you have used an eSIM in Guernsey recently, a one-paragraph note on what worked (and what did not) helps the next traveler.
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Pricing on this page is pulled live from our database and refreshed every four hours. Coverage notes are sourced from carrier roaming agreements and updated when carriers change partners. Provider rankings are determined by price-per-gigabyte and plan flexibility, not by who pays the largest commission.