HelloRoam offers prepaid eSIM data plans for Guernsey from £3.76 a day. Your e SIM connects to local 4G/5G networks the moment you land. Activate by QR code in under two minutes, with no shop visit required. Keep your EE, Vodafone, or Three number live on dual SIM while your e-sim handles data abroad.
- Mobile networks
212+
- 5G support
5G
- Setup
under two minutes
Last updated
Your Guernsey eSIM with local network coverage
Cheap eSIM for Guernsey, starting from £3.76. Local 4G/5G data on top carrier networks in Guernsey. Works on all eSIM compatible phones. UK mobile tariffs frequently do not cover Guernsey on standard plans, which catches British visitors off guard on their ferry or short flight from the mainland. A HelloRoam e-sim for Guernsey activates before you reach St Peter Port. Plans start from £3.76 on Sure 5G networks across the island, Herm, and the Sark ferry routes. Costs far less than a UK Channel Islands add-on. No fuss. Choosing an e SIM Guernsey from HelloRoam means instant QR delivery, no contract, and local network speeds from the moment you land.
Guernsey eSIM with fast 5G coverage
HelloRoam provides eSIM plans for Guernsey starting from £3.76. Get 4G data on Sure across St. Peter Port, St. Martin, St. Sampson. Activate via QR code before your flight.
- Plans start at £3.76 with 5G speeds
- Coverage from Sure
- Instant activation in under 2 minutes
- 180-day money-back guarantee
- Guernsey coverage across major cities
- Network
- 5G
- Plans From
- £3.76
- Activation
- Under 2 min
- Guarantee
- 180 days

How to Set Up an eSIM in Guernsey
Follow these steps to get your eSIM sorted on iPhone or Android before your holiday. Works for any eSIM for international travel, no replacement SIM, no shop visit.
Set up an eSIM on your iPhone for travel from the UK
Set up an eSIM on your Android for travel from the UK

Holiday changed? Not to worry, your money is safe.
Plans change. With HelloRoam, you can request a full refund on any unused eSIM plan within 180 days of purchase. No questions asked if the eSIM has not been activated.
Learn more about our refund policyHelloRoam Guernsey eSIM vs EE, Vodafone and Three roaming
When comparing eSIM vs a travel SIM card for Guernsey, HelloRoam wins on price. EE charges £6/day on their Roam Abroad Pass, Vodafone charges £6.85/day on Xtra roaming, and Three Go Roam applies fair-use data caps. Skip the airport SIM kiosk and get the cheapest eSIM deal from £3.76 with instant QR activation.
| Feature comparison | HelloRoam | UK carrier roaming add-on | Budget eSIM |
|---|---|---|---|
| 180-day refund policy | |||
| Round-the-clock live chat | |||
| £0 activation fees | |||
| Automatic data-usage alerts | |||
| No data overage charges | |||
| Instant QR code delivery | |||
| Premium Guernsey carrier networks |
Why UK Travellers Pick HelloRoam e-sim for Guernsey
HelloRoam vs Other eSIM Providers for Guernsey
HelloRoam eSIM reviews from UK travellers highlight the 180-day refund policy, no activation fees, and round-the-clock live support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers for your Guernsey holiday.
| Feature comparison | HelloRoam | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| 180-day refund policy | ||||||
| 24/7 live chat support | ||||||
| £0 activation fees | ||||||
| Automatic data-usage alerts | ||||||
| No data overage charges | ||||||
| Instant QR code delivery | ||||||
| Premium Guernsey carrier networks | ||||||
| Own branded carrier identity (SPN) |
What Is an e SIM? How eSIM Works in Guernsey
An eSIM card is a digital SIM built into your phone. There is no plastic chip and no SIM tray to open. Scan a QR code to activate your e SIM in under two minutes on any eSIM compatible iPhone or Android. It works as a prepaid international data plan for Guernsey travel with no airport SIM shop queue, no replacement SIM card, and no carrier contract. Mobile data through an eSIM connects to local in-country networks, giving you the same wireless connectivity as a resident rather than a roaming tourist. Follow the step-by-step setup guide to get connected before your flight from Heathrow, Gatwick, or any UK airport. guide


Mobile connectivity guide for Guernsey
Guernsey has 4G mobile coverage across its main cities and tourist areas. Sure provides connectivity in St. Peter Port, St. Martin, St. Sampson. Sure provides 4G across Guernsey and Herm. Coverage is good in St. Peter Port and tourist areas. Small outer islets have limited signal.
Guernsey is a Channel Islands destination for British holidaymakers who enjoy coastal walking, seafood, tax-free shopping, and Second World War history.
- HelloRoam connects to Sure 5G in Guernsey
- 4G coverage across St. Peter Port, St. Martin, St. Sampson
- Connect on Sure
- Activate via QR code before your flight from the UK
eSIM Travel Tips for Guernsey
Install your eSIM before your flight to Guernsey
Set up your HelloRoam eSIM profile at home before heading to the airport. Switch it on when you land and you will have mobile data straight away. No hunting for a local SIM card on arrival.
Save offline maps before you go
Download offline maps of St. Peter Port, St. Martin, St. Sampson before your departure. This is especially useful in areas with patchy signal or when navigating Channel Islands break locations where connectivity may be limited.
Check FCDO travel advice
Guernsey is a British Crown Dependency. UK nationals can visit freely. Check gov.uk for current travel information.
Keep your UK number active for calls
Use your dual SIM settings to keep your UK SIM active for calls and texts whilst routing all data through your HelloRoam eSIM. You stay reachable on your usual number without paying EE, Three, or Vodafone UK international charges.
Currency in Guernsey
Guernsey pound (GGP) at 1:1 with pound sterling. UK notes accepted. UK cards work normally.
Mobile networks in Guernsey: what British travellers need to know
Guernsey is served by Sure. HelloRoam connects on Sure, which provides 4G coverage across main cities and tourist areas. Your eSIM selects the best available signal automatically.
- Sure

- 5G
HelloRoam eSIM vs UK carrier charges for British travellers in Guernsey
A straight comparison of your mobile data options for a Channel Islands break in Guernsey.
| Category | HelloRoam eSIM | Local SIM card in Guernsey | UK carrier roaming (EE, Three, Vodafone UK, O2) |
|---|---|---|---|
| Typical cost | From £4.18 total | £7.46–£22.37 total | £7.46–£11.19/day |
| Details | Plans start at £3.76. Buy before your flight, install via QR code at home, and land in Guernsey already connected on Sure. No UK carrier international charges, no local SIM hassle. | Local SIM cards are available in Guernsey but require time to purchase and set up on arrival. Tourist SIMs may require ID or local address. Any leftover data is lost when the plan expires. | Guernsey is outside the UK. EE, Vodafone UK, O2, and Three all charge daily international data charges or require international add-ons. A week of carrier roaming can add significant charges to your monthly bill. |
Prices approximate as of . Actual savings vary.
Best time to visit Guernsey from the UK
Guernsey is a Channel Islands destination for British holidaymakers who enjoy coastal walking, seafood, tax-free shopping, and Second World War history. Summer (June to September) is warm with temperatures of 17°C to 22°C, ideal for beaches and coastal walks. Spring and autumn are quiet and good value.
Reviewed by the HelloRoam Editorial Team

Reviewed by the HelloRoam Editorial Team
Top Destinations in Guernsey

Saint Peter Port
Travel to Saint Peter Port with HelloRoam and get fast mobile data coverage in Guernsey.
Sure 4G covers Saint Peter Port well; the harbor and high street maintain steady signal throughout the day.

Saint Pierre Du Bois
HelloRoam gives you instant data access in Saint Pierre du Bois, Guernsey with no extra fees.
Sure 4G covers this western Guernsey parish; rural lanes and clifftop paths have lighter but usable signal.

Saint Sampson
HelloRoam supports full data coverage in Saint Sampson and nearby areas of Guernsey.
Sure 4G covers Saint Sampson and its busy commercial harbor; signal is consistent across the northern parishes.

Vale
HelloRoam provides reliable data coverage in Vale, Guernsey for travelers on the go.
Sure 4G covers Vale parish in northern Guernsey; the L'Ancresse Common area has good outdoor coverage.
Showing slide 1 of 4
Reviews
HelloRoam eSIM Reviews from UK Travellers
Real reviews from Trustpilot and the App Store, quoted as written.
40k+ travellers have used HelloRoam
Cat
On a trip to Europe, my hotel Wi-Fi was so slow and outside Wi-Fi was unreliable. I couldn’t take it anymore so I got helloroam for a few days. It was tricky to set up correctly because of the primary settings (with my original number). But I reached out to their customer service via WhatsApp. Super responsive and helpful, with specific and clear steps to troubleshoot. Appreciate having 4G roaming instead of being stuck with in and out Wi-Fi during my trip!!
Rated 5 out of 5 by this reviewer

Very good experience! The eSIM was easy to set up and worked great in London. It was much cheaper than it would have been to use my own operator there.
Ilona
Rated 5 out of 5 by this reviewer
metulker
Hard to set up but help was good
Rated 5 out of 5 by this reviewer
Reuben
Really happy with HelloRoam. Everything worked as expected, from messaging and Google Maps through to streaming without any issues. Easy to use, reliable and affordable. Would happily use them again when travelling.
Rated 5 out of 5 by this reviewer

Angeline
Reliable connection. Reasonable pricing.
Rated 4 out of 5 by this reviewer
Last updated
Common Questions About Guernsey eSIM
How affordable is data in Guernsey on a HelloRoam eSIM versus a UK roaming plan?
An eSIM in Guernsey from HelloRoam starts from £3.76 on Sure 5G networks covering St Peter Port and the island. Activate by QR at home before your ferry or flight from any UK port. HelloRoam costs far less than most UK Channel Islands roaming add-ons. No contract.
Do eSIMs Guernsey plans suit a long weekend sailing trip to the Channel Islands?
eSIMs Guernsey plans from HelloRoam connect to local networks across the island, harbour areas, and Herm from £3.76. Prepaid and activated by QR before you leave the mainland. No contract, and your UK number stays active throughout your Channel Islands break.
Does a HelloRoam eSIM Guernsey plan cover Alderney and Sark as well?
A HelloRoam eSIM Guernsey plan connects to Sure 5G networks on the main island of Guernsey. Coverage on the smaller dependencies of Alderney and Sark depends on the network's reach to those locations. Plans start from £3.76 and activate before you leave the UK so data is sorted before your ferry from Poole or Weymouth.
Is a HelloRoam eSIM Guernsey plan worth buying for a British family's summer break to the Channel Islands?
A HelloRoam eSIM Guernsey plan is worth considering for a British family summer break if you want predictable data costs on Sure 5G networks without unexpected roaming charges. Guernsey is outside the UK, so standard UK mobile plans may apply different rates there. Plans start from £3.76 with a 180-day refund guarantee for unactivated eSIMs.
What is the best eSIM for Guernsey?
HelloRoam is a strong eSIM choice for British travellers visiting Guernsey, connecting on Sure with 4G coverage. Plans start from £3.76. Install via QR code before your flight and arrive already connected.
Does a HelloRoam eSIM work in Guernsey?
Yes, HelloRoam eSIM plans work in Guernsey. Your eSIM connects on Sure. Buy online, scan the QR code at home, and you are connected when you arrive.
Which networks does HelloRoam use in Guernsey?
HelloRoam connects on Sure in Guernsey. This network provides 4G coverage across main cities and tourist areas. Your phone selects the best available signal automatically. Sure Guernsey and JT Guernsey are among the strongest 4G providers in the area, covering tourist attractions, airports, and city centers. HelloRoam automatically selects the best available signal so you stay connected without manual network switching.
How do I set up an eSIM for Guernsey?
Purchase your plan on helloroam.com, scan the QR code in your phone settings, and activate data when you arrive in Guernsey. The process takes around five minutes and is best done at home before you travel.
How much does a HelloRoam eSIM for Guernsey cost?
HelloRoam eSIM plans for Guernsey start at £3.76. Larger data allowances are available for longer stays or those who rely heavily on navigation, streaming, and video calls. Plans start from £3.76 depending on data size and duration. Compared with roaming charges from home carriers, a HelloRoam plan costs significantly less for a typical trip to Guernsey. There are no hidden fees or surprise charges on your home bill.
How much data do I need for a Channel Islands break in Guernsey?
1 to 3 GB suits a long weekend in Guernsey for maps and WhatsApp. Your UK roaming may cover Guernsey, check with your carrier first. If you are travelling with family or using a mobile hotspot, choose a larger plan to stay connected throughout your Channel Islands break.
Is a HelloRoam eSIM cheaper than EE or Vodafone UK roaming in Guernsey?
In most cases, yes. UK carriers charge daily international fees for using data in Guernsey. A HelloRoam eSIM from £3.76 gives you a fixed data cost with no surprise charges.
Does HelloRoam eSIM include calls and texts in Guernsey?
HelloRoam eSIM plans are data-only. Use WhatsApp, FaceTime, or Google Duo for calls and messages over your data connection. Keep your UK SIM active on your dual SIM phone to receive calls and texts on your regular mobile number. HelloRoam eSIM plans are data-only. Use WhatsApp, FaceTime, or Viber for calls over your data connection. Keep your home SIM active for voice calls if needed. Emergency calls work on any network even without an active data plan.
Can I use a HelloRoam eSIM across Guernsey?
Yes, HelloRoam eSIM plans work throughout Guernsey on Sure. Coverage is available across main cities, tourist areas, and along the main routes. Very remote areas may have limited signal.
What is the emergency number in Guernsey?
The emergency number in Guernsey is 999. Dial 999 or 112 (both work) for urgent help. Emergency calls work on any available network, including your HelloRoam eSIM, even without a data balance. Save the number offline before you travel. Save these numbers before you leave for Guernsey. Emergency calls work on any mobile network without an active data plan. The international emergency number 112 also works in many countries worldwide.
When should I buy my eSIM for Guernsey?
Purchase your HelloRoam eSIM one to two days before your departure. Install it at home, activate data when you arrive in Guernsey, and skip the local SIM shop queues entirely.

What to Know Before You Buy
eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before purchasing.
Most travel eSIM plans provide data only. Your existing phone number stays active for calls and texts on your primary SIM.
Coverage quality varies by location within Guernsey. Urban areas typically have strong 4G/5G coverage, while rural or remote areas may have limited connectivity.
Install your eSIM before departure. Activation requires an internet connection, which may not be available at your destination airport.
Transparency Notice
- Service Provider Name (SPN)
- HelloRoam appears as the carrier name on your phone's status bar through the SPN, a standardized field in the eSIM profile. Unlike most travel eSIM resellers, HelloRoam provisions its own Service Provider Name.
- Public Network Name (PNN)
- The PNN is the network name field in your eSIM profile, defined in 3GPP TS 31.102 (EF_PNN). Your phone can read it to display the name of the network you are connected to.
- Access Point Name (APN)
- HelloRoam eSIMs auto-configure their Access Point Name during installation. Your device connects to the strongest local network infrastructure without manual settings.
Prices are our retail rates across 185+ countries. Plan recommendations use real traveller feedback and network performance data. Every purchase includes a 180-day refund window if the eSIM has not been activated.
Future Syncs Limited 124 City Road, London, EC1V 2NX, UK +44 203 916 6249 help@helloroam.com Reg. No. 15950168





