Cheapest eSIM for Guernsey
The cheapest eSIM for Guernsey right now is eSIMCard, 50 GB for 31 Days at $28.98. That is $0.58 per GB.
862 plans from 51 providers, watched and re-ranked by the real price per gigabyte. Every one is a prepaid travel eSIM for Guernsey that you buy online and install before you fly, so it works the moment you land.
Swipe the table for price and verdict →
| Rank | Provider | Data | Validity | Price (USD) | Price per GB | Verdict | Get |
|---|---|---|---|---|---|---|---|
| Paid placement. It sits above the ranking and does not change it. Advertise here | SponsoredPaid placement. It sits above the ranking and does not change it. Advertise hereMegaEsim Coupon: ESIMWATCHDOG |
20 GB | 30 Days | $47.31 | $2.37 | Sponsored | Get |
| 1 | eSIMCard Coupon: eSbljricbt |
50 GB | 31 Days | $28.98 | $0.58 | Best value | Get |
| 2 | eSIMCard Coupon: eSbljricbt |
20 GB | 31 Days | $14.35 | $0.72 | Great | Get |
| 3 | Simbye Coupon: DOG |
50 GB | 30 Days | $38.24 | $0.76 | Good | Get |
| 4 | GigaPanda | 50 GB | 30 Days | $39.90 | $0.80 | Good | Get |
| 5 | FlyEsim Coupon: ESIMWATCHDOG |
50 GB | 31 Days | $41.58 | $0.83 | Good | Get |
| 6 | ASIMGO Coupon: ESIMWATCHDOG10 |
30 GB | 30 Days | $27.42 | $0.91 | Okay | Get |
| 7 | CocoRoam | 35 GB | 30 Days | $32.40 | $0.93 | Okay | Get |
| 8 | eSIModo Coupon: ESIMWATCHDOG |
30 GB | 10 Days | $28.44 | $0.95 | Okay | Get |
| 9 | eSIModo Coupon: ESIMWATCHDOG |
20 GB | 7 Days | $19.41 | $0.97 | Okay | Get |
| 10 | ASIMGO Coupon: ESIMWATCHDOG10 |
5 GB | 7 Days | $4.91 | $0.98 | Okay | Get |
| 11 | GigaPanda | 20 GB | 30 Days | $19.90 | $0.99 | Okay | Get |
| 12 | eSIMfly | 30 GB | 30 Days | $30.89 | $1.03 | Okay | Get |
| 13 | Wanderly Coupon: ESIMWATCHDOGWILDCARD |
30 GB | 10 Days | $30.99 | $1.03 | Okay | Get |
| 14 | FlyEsim Coupon: ESIMWATCHDOG |
35 GB | 30 Days | $35.96 | $1.03 | Okay | Get |
| 15 | Wanderly Coupon: ESIMWATCHDOGWILDCARD |
20 GB | 10 Days | $20.99 | $1.05 | Okay | Get |
| 16 | ByteSIM | 50 GB | 30 Days | $54.90 | $1.10 | Okay | Get |
| 17 | eSIMfly | 20 GB | 15 Days | $22.69 | $1.13 | Okay | Get |
| 18 | Lempart Flex Coupon: ESIMWATCHDOG |
50 GB | 30 Days | $60.99 | $1.22 | Fair | Get |
| 19 | Simbye Coupon: DOG |
20 GB | 30 Days | $25.49 | $1.27 | Fair | Get |
| 20 | ByteSIM | 20 GB | 30 Days | $25.90 | $1.29 | Fair | Get |
| 21 | Lempart Flex Coupon: ESIMWATCHDOG |
30 GB | 30 Days | $39.99 | $1.33 | Fair | Get |
| 22 | Tourist eSIM | 20 GB | 31 Days | $27.76 | $1.39 | Fair | Get |
| 23 | MobiMatter Coupon: ESIMWATCHDOG |
40 GB | 365 Days | $59.99 | $1.50 | Fair | Get |
| 24 | MobiMatter Coupon: ESIMWATCHDOG |
10 GB | 30 Days | $15.49 | $1.55 | Expensive | Get |
| 25 | AirPlans Coupon: ESIMWATCHDOG |
20 GB | 30 Days | $32.05 | $1.60 | Expensive | Get |
| 26 | Breeze | 50 GB | 30 Days | $80.99 | $1.62 | Expensive | Get |
| 27 | Tourist eSIM | 50 GB | 30 Days | $85.54 | $1.71 | Expensive | Get |
| 28 | nadanada | 50 GB | 30 Days | $87.99 | $1.76 | Expensive | Get |
| 29 | Earth Esim Coupon: ESIMWD5 |
30 GB | 30 Days | $52.99 | $1.77 | Expensive | Get |
| 30 | Textr | 20 GB | 30 Days | $38.08 | $1.90 | Expensive | Get |
| 31 | Earth Esim Coupon: ESIMWD5 |
12 GB | 30 Days | $22.99 | $1.92 | Expensive | Get |
| 32 | AlpineSIM | 50 GB | 180 Days | $96.13 | $1.92 | Expensive | Get |
| 33 | CocoRoam | 25 GB | 30 Days | $48.30 | $1.93 | Expensive | Get |
| 34 | Yatelo Coupon: ESIMWATCHDOG |
20 GB | 30 Days | $38.78 | $1.94 | Expensive | Get |
| 35 | nadanada | 20 GB | 30 Days | $38.99 | $1.95 | Expensive | Get |
| 36 | AlpineSIM | 20 GB | 30 Days | $39.44 | $1.97 | Expensive | Get |
| 37 | Soovia | 50 GB | 180 Days | $98.60 | $1.97 | Expensive | Get |
| 38 | Travel eSIM | 50 GB | 180 Days | $99.10 | $1.98 | Expensive | Get |
| 39 | Saily Coupon: ESIMWATCHDOG |
50 GB | 365 Days | $99.99 | $2.00 | Expensive | Get |
| 40 | Esimatic | 50 GB | 30 Days | $101.30 | $2.03 | Expensive | Get |
| 41 | Telekonek Coupon: ESIMWATCHDOG |
50 GB | 20 Days | $103.50 | $2.07 | Expensive | Get |
| 42 | Telekonek Coupon: ESIMWATCHDOG |
50 GB | 30 Days | $104.50 | $2.09 | Very expensive | Get |
| 43 | Travel eSIM | 20 GB | 30 Days | $41.93 | $2.10 | Very expensive | Get |
| 44 | AirPlans Coupon: ESIMWATCHDOG |
5 GB | 30 Days | $10.68 | $2.14 | Very expensive | Get |
| 45 | AdventureSIMs Charged in AUD Coupon: WATCHDOG |
50 GB | 180 Days | $108.55 | $2.17 | Very expensive | Get |
| 46 | GigSky | 50 GB | 180 Days | $109.99 | $2.20 | Very expensive | Get |
| 47 | SparkRoam Coupon: ESIMWATCHDOG5 |
20 GB | 30 Days | $44.53 | $2.23 | Very expensive | Get |
| 48 | AdventureSIMs Charged in AUD Coupon: WATCHDOG |
20 GB | 30 Days | $44.53 | $2.23 | Very expensive | Get |
| 49 | eSIMzio Coupon: WATCHDOG15 |
20 GB | 30 Days | $44.75 | $2.24 | Very expensive | Get |
| 50 | Textr | 10 GB | 30 Days | $22.61 | $2.26 | Very expensive | Get |
| 51 | Soovia | 20 GB | 30 Days | $45.90 | $2.29 | Very expensive | Get |
| 52 | eSIM Hero | 50 GB | 180 Days | $117.25 | $2.35 | Very expensive | Get |
| 53 | Connect Me Guru Coupon: hello-saun |
50 GB | 180 Days | $117.40 | $2.35 | Very expensive | Get |
| 54 | MegaEsim Coupon: SUMMER10 |
20 GB | 30 Days | $47.31 | $2.37 | Very expensive | Get |
| 55 | SimSmash | 20 GB | 30 Days | $48.19 | $2.41 | Very expensive | Get |
| 56 | Connect Me Guru Coupon: hello-saun |
20 GB | 30 Days | $48.40 | $2.42 | Very expensive | Get |
| 57 | eSIM Hero | 20 GB | 30 Days | $48.50 | $2.42 | Very expensive | Get |
| 58 | Esimatic | 20 GB | 30 Days | $49.99 | $2.50 | Very expensive | Get |
| 59 | Lumbus Coupon: ESIMWATCHDOG10 |
50 GB | 180 Days | $127.99 | $2.56 | Very expensive | Get |
| 60 | Saily Coupon: ESIMWATCHDOG |
5 GB | 30 Days | $12.99 | $2.60 | Very expensive | Get |
389 of these 862 plans were checked against the seller's own shop on 17 October 2026. The rest come from the seller's own feed or plan pages and are not yet independently checked.
The Watchdog Pick is chosen automatically: the lowest real price per GB of the 862 plans in this view. Bulk data pools above 50 GB cannot win it, because their per GB rate only exists if you use data no traveller uses. Providers cannot pay for it, and a commission never changes the ranking. Prices are shown in USD and can change at checkout.
Price per GB counts only data you can use inside the validity, at most 3 GB a day, so a big pool on a short validity cannot buy the top spot. Every provider's best two plans come first, then the rest. A plan marked Unverified price undercuts every other provider here by more than half and waits at the end until we have checked it on the seller's site. How we rank
Unlimited rows show the daily amount at full speed. Some rows also show the speed after that amount. A row with no speed does not mean the plan stays fast, so check the plan on the seller's site.
Some links here earn us a commission. It never changes the order. How we make money The row marked Sponsored is a paid placement shown above the ranking, not part of it. Advertise here.
Crossing borders on this trip? Compare multi country Europe eSIM plans that keep one line working across several destinations.
Cheapest eSIM for Guernsey: the numbers
As of 17 October 2026, 06:01 GMT, the cheapest eSIM for Guernsey is eSIMCard with 50 GB for 31 Days at $28.98. That is $0.58 per GB, the best rate of the 862 plans we compare from 51 providers. 421 plans include 5G. 334 support top ups. That timestamp is the exact moment of our latest price check, and the table above always shows the live order.
Which is the best eSIM for Guernsey?
There is no single best eSIM for Guernsey, because the right plan depends on how long you stay and how much data you use. What we can do is rank the 862 plans on the numbers, as they stand on 17 October 2026:
- Best value overall eSIMCard, 50 GB for 31 Days at $28.98. That is $0.58 per GB, the lowest real rate of every Guernsey plan we track.
- Best for a short trip ASIMGO, 1 GB for 5 Days at $2.54. The cheapest ticket that still gives you at least 1 GB for a week or less.
- Highest daily cap on an unlimited plan ASIMGO, 3 Days at $5.94, full speed up to 3 GB a day. Set that daily cap against the fixed plan above before you pay for the word unlimited.
None of these picks is chosen by a person. Each one is the first row of a sort on live prices, so it changes whenever a provider moves a price, and eSIMCard did not pay to be named here.
Which mobile networks does Guernsey have?
4G covers the island well from both networks, and 5G construction started in 2026. No independent coverage statistic was found for Guernsey alone.
- Sure: The incumbent operator, owned by Bahrain based Beyon. Sure completed its takeover of rival Airtel-Vodafone in November 2024 and is spending 48 million pounds on a new 5G network across the islands.
- JT: The Jersey based operator competes on Guernsey and began an island wide 5G rollout there in June 2026, starting with masts in St Peter Port.
- Airtel-Vodafone: Now owned by Sure. Existing customers can stay on their old plans for up to three years while the brand is absorbed.
The eSIM plans we compare on this page connect to:
The list above is Guernsey's operator market. The badges are the networks our tracked plans actually roam onto, which can be a subset of it, and the same network is sometimes sold to roaming partners under a different brand name. So a guide praising an operator you do not see badged here is describing a local SIM, not the travel eSIMs compared above.
Is 5G available in Guernsey?
JT switched on its first Guernsey 5G masts in June 2026 as a four month phased build using non standalone 5G. Sure is building a rival network with a pledge of full standalone 5G coverage.
How much data do you need in Guernsey?
Light use is about 500 MB a day. That covers maps, messages, and some browsing. Normal use with photos, social apps, and short videos runs 1 to 1.5 GB a day. Streaming and hotspot use can eat 2 to 3 GB a day. Here is what each size costs in Guernsey right now:
Are unlimited eSIMs for Guernsey really unlimited?
Not always. 290 of the 862 plans above are sold as unlimited, and most of them carry a daily fair use cap. For Guernsey the caps we can see published are 0.5 to 3 GB a day: past that the speed drops, often to 1 Mbps or less, until the clock resets. That is fine for messages and maps, slow for video. At $0.58 per GB from eSIMCard, a fixed plan often works out cheaper than unlimited unless you genuinely burn several GB a day. That is why we rank by price per GB and not by the word on the label.
Here is what each seller on this page actually allows per day before it slows you down. No seller publishes this next to its rivals, which is exactly why it is worth showing.
Every seller that publishes a daily allowance is listed on our daily data caps page, with the cheapest plan at each one. The gap between the top and bottom of that table is the whole point. Two plans both sold as unlimited can differ several times over in what you actually get at full speed, and the cheaper one is not always the smaller allowance.
eSIM or a local SIM card at the airport in Guernsey?
An eSIM is ready before you land. No queue, no shop, no handing over your passport at a counter for a tourist SIM card. Data for Guernsey starts at $2.00 on this page, which is hard for airport kiosks to beat. A local SIM still makes sense if you need a local phone number or plan to stay for months. For a normal trip, the eSIM wins on price and effort.
Setting up your Guernsey eSIM
Pick the plan, not the brandThe cheapest rate in Guernsey today is $0.58 per GB from eSIMCard, against a median of $3.30. The QR code arrives by email within minutes of paying.
Install before you flyScan the QR code on wifi at home. Installation needs a connection, and the one thing you will not have when you land in Guernsey is a working connection.
Turn it on when you landEnable the eSIM and turn on data roaming for it, then give it a minute to attach to JT, Sure. Expect 5G where the network reaches, 4G everywhere else.
Know what happens when it runs out334 of the 862 plans here can be topped up, so running out is not the end of the trip. If you would rather over buy than top up, the cheapest plan with at least 5 GB is ASIMGO at $4.91.
Good to know before you land in Guernsey
Guernsey is a Crown Dependency, not part of the UK or the EU. EU roam like home does not apply, and most UK plans treat the island as an international destination. This surprises a lot of British visitors who expect home rates.
Fly into Guernsey Airport or arrive by ferry, and your UK phone starts roaming the moment you land. UK allowances usually exclude the Channel Islands, so EE, O2, Vodafone and Three charge international rates or sell separate day passes.
Before travelling, check whether your operator sells a Channel Islands add-on, or load a travel eSIM that names Guernsey. A plan that just says UK will usually not cover it.
Guernsey Travel eSIM FAQ
Everything you need to know about using an eSIM in Guernsey
What is the cheapest eSIM for Guernsey?
Right now the cheapest option ranked by price per GB is eSIMCard with 50 GB for 31 Days at $28.98. That works out to $0.58 per GB. Prices change often, so the table above is re-sorted at every price check.
Which is the best eSIM for Guernsey?
It depends on the trip, so we rank rather than pick a favourite. On today's prices the best value for Guernsey is eSIMCard at $0.58 per GB, the lowest real rate of the 862 plans we compare. For heavy daily use there are 290 unlimited plans, most with a daily fair use cap, and they only win if you genuinely burn several GB a day. Every pick on this page is the first row of a sort on live prices. No provider can pay to be named best.
Is eSIM available in Guernsey?
Yes. We track 862 prepaid travel eSIM plans from 51 providers that work in Guernsey, roaming onto JT, Sure. You need a phone that supports eSIM and is not locked to a carrier; most iPhones from the XS onward and most flagship Android phones from 2019 on qualify.
Which networks will my eSIM connect to in Guernsey?
The plans we compare connect to JT, Sure. The exact network depends on the plan you pick. Check the plan details before you buy if one network matters to you.
Do Guernsey eSIMs support 5G?
421 of the 862 plans we track for Guernsey include 5G where the local network offers it. The rest run on 4G, which is still fine for maps, calls over apps, and video.
Can I buy a Guernsey eSIM online before I travel?
Yes, and you should. Every plan on this page is sold online and delivered by email as a QR code within minutes. Install it on wifi at home, leave the line switched off, and turn on data roaming for it when you land in Guernsey. The validity clock on most plans only starts when the eSIM first connects.
Can I top up my Guernsey eSIM if I run out?
Yes. 334 of the 862 plans here support top ups, so you can add data without buying a new eSIM. The rest need a fresh plan once the data ends.
Is an eSIM cheaper than a local SIM card in Guernsey?
For a trip of days or weeks, usually yes. Data for Guernsey starts at $2.00 for 300 MB on this page, with no queue, no shop and no passport handed over at a counter. A local SIM card can still win if you stay for months or need a local phone number.
Will I still receive bank SMS and OTP codes?
Yes, if you keep your home SIM active. Travel eSIMs are data only. Your phone can hold both at once, so leave your normal SIM on for SMS and use the eSIM for data. Turn off roaming data on the home SIM to avoid charges.
Do these eSIMs include a phone number or calls?
The plans we compare are data only, so there is no local number. Calls work fine over WhatsApp, FaceTime, or any app that uses data. If you need a real local number, a local SIM is the better tool.
Does a Guernsey eSIM work on iPhone and Android?
Yes, on any carrier unlocked phone with eSIM support: iPhone XS or newer, Google Pixel 3 or newer, Samsung Galaxy S20 or newer and most recent flagships. The plans are identical on both; only the install steps differ, and both take about a minute on wifi.
How many GB do I need for a week in Guernsey?
Around 3 to 5 GB covers a week of maps, messaging, and normal browsing. Heavy video or hotspot use needs 1 to 2 GB per day. Today the cheapest plan with at least 5 GB is ASIMGO at $4.91.
Which Guernsey eSIM gives the most data per day?
Of the plans sold as unlimited here, ASIMGO allows the most at full speed, 3 GB a day from $2.90. The smallest allowance on this page is 500 MB a day, from 6 sellers. Every one of them is advertised as unlimited, and past the daily allowance the speed drops, often to 1 Mbps or less, until the next day. Check the allowance, not the word.
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How we rank
Prices last checked on 17 October 2026, 06:01 GMT across 862 plans. Every plan is ranked by the true cost per gigabyte, not marketing claims. We do not take money for rankings, and providers cannot pay for a higher position. Read the full method on our how we rank page.
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