- Lowest price$4.99
- Avg. cost per GB$3.73
- Providers here3
The short answer
For most trips to Guernsey, Amigo eSIM 18 GB for 30 days at $26.00 is the one to take — it works out at $1.44 per GB, better than anything else here. If you only need maps and messaging, Saily at $4.99 is the cheapest way in.
Our picks for Guernsey
Chosen by the numbers below, not by who pays us. Every pick states why it won.
- Best valueAmigo eSIM18 GB · 30 days$26.00$1.44 / GB
$1.44 per GB — 3.5× better value than the entry plan.
See this plan - Cheapest way inSaily1 GB · 7 days$4.99$4.99 / GB
The lowest price for Guernsey. Enough for maps and messaging on a short trip.
See this plan - For heavy useAmigo eSIM30 GB · 30 days$44.00$1.47 / GB
The most data available here, at $1.47 per GB.
See this plan
What data costs in Guernsey
The cheapest plan on this page is a starter nobody wants, and the best value per GB is a bundle nobody needs. This is the question in between: pick the amount of data you want and see who is cheapest for it.
| Data | Cheapest | Next best | You could overpay |
|---|---|---|---|
| 1 GB or more | $4.99Saily | $6Amigo eSIM | +$1.51 |
| 3 GB or more | $11.99Saily | $13Amigo eSIM | +$3.01 |
| 5 GB or more | $13Amigo eSIM | $16.99Saily | +$12 |
| 10 GB or more | $20Amigo eSIM | $29.99Saily | +$19 |
All 13 plans
The full list, with every field each provider publishes. Sort or filter it to your trip.
Showing 13 of 13 plans
| Compare | Provider | Data | Validity | Price | Per GB | 5G | Top-up | Network | View plan |
|---|---|---|---|---|---|---|---|---|---|
| Saily | 1 GBBest price | 7 days | $4.99 | $4.99 | — | — | — | View plan | |
| Amigo eSIM | 1 GB | 7 days | $6.00 | $6.00 | — | — | — | View plan | |
| Nomad | 1 GB | 7 days | $6.50 | $6.50 | ✗ | ✓ | Sure Mobile | View plan | |
| Saily | 3 GB | 30 days | $11.99 | $4.00 | — | — | — | View plan | |
| Amigo eSIM | 6 GB | 30 days | $13.00 | $2.17 | — | — | — | View plan | |
| Nomad | 3 GB | 30 days | $15.00 | $5.00 | ✗ | ✓ | Sure Mobile | View plan | |
| Saily | 5 GB | 30 days | $16.99 | $3.40 | — | — | — | View plan | |
| Amigo eSIM | 12 GB | 30 days | $20.00 | $1.67 | — | — | — | View plan | |
| Nomad | 5 GB | 30 days | $25.00 | $5.00 | ✗ | ✓ | Sure Mobile | View plan | |
| Amigo eSIM | 18 GBBest value | 30 days | $26.00 | $1.44 | — | — | — | View plan | |
| Saily | 10 GB | 30 days | $29.99 | $3.00 | — | — | — | View plan | |
| Nomad | 10 GB | 30 days | $39.00 | $3.90 | ✗ | ✓ | Sure Mobile | View plan | |
| Amigo eSIM | 30 GB | 30 days | $44.00 | $1.47 | — | — | — | View plan |
A dash means the provider does not publish this, not that the feature is missing.
“Unlimited” plans are capped by a daily fair-use limit. The allowance shown is the provider's stated ceiling, not a speed guarantee.
Brand by brand in Guernsey
What each brand sells here, and what it will say about it. A dash means the brand does not publish that — which is worth knowing before you buy, not after.
| Brand | From | Plans | Longest | 5G | Hotspot | Top-up |
|---|---|---|---|---|---|---|
| Saily | $4.99 | 4 | 30 days | — | — | — |
| Amigo eSIM | $6 | 5 | 30 days | — | ✓ | — |
| NomadSure Mobile | $6.50 | 4 | 30 days | ✕ | — | ✓ |
Frequently asked about eSIMs for Guernsey
What is the cheapest eSIM for Guernsey?
Saily at $4.99 for 1 GB over 7 days. That is the lowest price of the 13 plans tracked here. It is not the best value per gigabyte — small packages rarely are — so check the price-per-GB column before buying if you expect to use more than a couple of gigabytes.
Which eSIM gives the best value per GB in Guernsey?
Amigo eSIM: 18 GB for 30 days at $26.00, which works out at $1.44 per gigabyte. Value per gigabyte matters more than headline price on any trip longer than a weekend.
Are there unlimited eSIM plans for Guernsey?
No. None of the 13 plans currently tracked for Guernsey is sold as unlimited.
Which mobile networks do these eSIMs use in Guernsey?
The providers that publish it list Sure Mobile. Not every provider discloses its network partner, and where one does not, this site shows a dash rather than guessing.
How current are these prices?
They were last read from each provider's own page on 9/17/2026. Prices are re-checked every day and the per-plan date is shown on every row; if a provider cannot be read, its plans keep their previous figures and are marked as carried over.
Some links on this page are affiliate links. If you buy through them we may earn a commission, at no extra cost to you. It never changes the prices shown or the order of the results.
Regional plans that also cover Guernsey
One plan across a group of countries, useful when the trip crosses a border. Which countries a regional plan reaches is stated by the brand selling it, not worked out here.
Other popular destinations
Spain
France
Italy
United States
United Kingdom
Japan
Thailand
TürkiyeWhat readers say about eSIMs in Guernsey
Nothing yet. We do not write reviews ourselves and we do not buy them, so this stays empty until someone who has actually used eSIMs in Guernsey sends one. If that is you, the form below takes a minute.