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Guernsey eSIM prices: HelloRoam from $5.04 for 1 GB
| Provider | Price (5GB) | Coverage | Rating | Best For |
|---|---|---|---|---|
| HelloRoam | $20.70 | Sure | 4.9/5 | 180-day refund |
| Airalo | Not verified | 200+ countries | 4.5/5 | Most destinations |
| Holafly | Unlimited | 160 countries | 4.2/5 | Heavy users |
Our top 3 picks for Guernsey
We evaluated 4 eSIM plans available for Guernsey, comparing them on verified pricing, network coverage, top-up availability, and app quality. Here are the top options.
Pros: Guernsey coverage on Sure, hotspot sharing and top-up on every plan, 24/7 support in 63 languages, and a 180-day refund on an unactivated eSIM. Cons: Newer brand, smaller community than Airalo.
| Tier | Duration | Discount | Starting price |
|---|---|---|---|
| Short Stay | 1-2 days | 4% off | $6.70$3.35/day · 2d |
| Week Package | 3-9 days | 8% off | $22.48$3.21/day · 7d |
| Extended Stay | 10-19 days | 11% off | $31.06$3.11/day · 10d |
| Monthly Package | 20-29 days | 15% off | $59.33$2.97/day · 20d |
| Long TermBest Value | 30-365 days | 18% off | $85.85$2.86/day · 30d |
Pros: 200+ countries, top-up available, largest community. Cons: Priced above newer competitors on some routes, support response times can vary.
Pros: Truly unlimited data, full-speed on most plans, live chat support 24/7. Cons: Premium pricing, no per-GB options available.
Guernsey network coverage on Sure
HelloRoam runs its Guernsey plans on Sure, the island's dominant operator, which is what keeps the cliff-path circuit and St Peter Port on one 4G network while EE, O2, and Vodafone bill the same ground as international roaming. JT Group, based in Jersey, also has a Channel Islands presence. Sure provides 4G LTE and 3G across all populated areas of Guernsey and is the single network listed on all 4 Guernsey plans on file.
It is the only carrier offering local-rate eSIM plans to visitors here.
Coverage analysis
Sure 4G LTE covers all of Guernsey's populated areas, including St Peter Port, St Sampson, the Vale in the north, and the southern cliff parishes. Guernsey Airport (GCI) connects on arrival. The coastal footpaths circling the island have 4G throughout.
Herm Island (accessible by boat from St Peter Port) has basic Sure coverage in the main areas. Sark, a car-free island also accessible by ferry, has limited coverage. Download offline maps for Sark excursions.
Activation
Install your eSIM QR code before flying into Guernsey Airport (GCI) or taking the ferry from Poole or Portsmouth. Sure registers the profile once you are on the island, with no registration counter to visit. UK travelers should note that a home plan bills international roaming in Guernsey unless the island is specifically included. iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer support eSIM.
Your device must be carrier-unlocked.
Data usage tips
Budget 350-450 MB per day for cliff path navigation, St Peter Port restaurant guides, WhatsApp, and ferry or bus timetables. The German military fortifications and bunkers from the WWII occupation are scattered across the island. Navigation apps use under 50 MB per site.
Tax-free shopping in St Peter Port uses minimal data. Download offline maps for Herm and Sark day trips, as signal is limited on those smaller islands.
eSIM plan pricing in Guernsey
Guernsey carries 4 plan sizes on Sure 4G. The 1 GB plan costs $5.04 over 7 days and covers a weekend of St Peter Port and coastal walks. The 3 GB plan costs $12.69 and the 5 GB plan $20.70, both over 30 days.
The 20 GB plan costs $60.83 and gives $3.04/GB across the 4. There is no 10 GB size and no daily plan on file for Guernsey, so the sizes jump from 5 GB straight to 20 GB. Verdict: HelloRoam prices Guernsey from $5.04 for 1 GB on Sure 4G, across 4 sizes.
All 4 Guernsey eSIM plans from $5.04 for 1 GB
| Plan | Network | Validity | Price |
|---|---|---|---|
| Guernsey 20GB 30Days ⭐ | Sure | 30 days / 20 GB | $60.83 |
| Guernsey 5GB 30Days | Sure | 30 days / 5 GB | $20.70 |
| Guernsey 3GB 30Days | Sure | 30 days / 3 GB | $12.69 |
| Guernsey 1GB 7Days | Sure | 7 days / 1 GB | $5.04 |
Prices verified: September 20, 2026
Guernsey eSIM questions answered
What is the best eSIM for Guernsey?
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Which eSIM should I buy for Guernsey?
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Which network does an eSIM use in Guernsey?
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Is there eSIM coverage on Herm and Sark islands?
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Does my phone support eSIM in Guernsey?
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How much data do I need for a weekend trip to Guernsey?
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Is Guernsey good for remote working?
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Provider reviews
Read our in-depth reviews of the top eSIM providers available in Guernsey.
