eSIM plans · EuropeGuernsey eSIM: How Much Data You Need (2026)
HelloRoam bills in 31 currencies. Airalo, Holafly, Nomad and Saily bill US dollars. 11 GB covers 7 days in Guernsey at 1.5 GB a day, which is the 20 GB tier at $60.83, on a published list naming Sure. Airalo wins reach, 200+ destinations to 186.
Mobile data in Guernsey runs on Sure's 4G LTE network. A 7-day trip at moderate usage (1.5GB a day for maps, messaging and browsing) totals 11GB. The 20GB tier at $60.83 fits a 7-day moderate trip with 9GB left over for video calls or hotspot sharing.
HelloRoam publishes one operator for Guernsey, Sure.
Data needs in Guernsey split into three bands. Light travelers cover 4GB over 7 days on the 0.5 GB band, maps and email only. Moderate travelers (11GB total) add social media and ride-hailing at 1.5GB/day. Heavy travelers (21GB total) stream video and run hotspots at 3GB/day. 1 carrier and 4 4G LTE plans service all three segments.
Here is the plan match for each traveler type. Light users: the 5GB plan at $20.70 covers the trip without paying for unused data. If you browse social feeds and use ride apps, then 5GB at $20.70 covers your 1.5GB/day pattern at $4.14/GB. If you expect 3GB/day or more, the 20GB tier at $60.83 on 4G LTE is the largest fixed option.
The tier that fits a Guernsey trip
Three tiers, and all 5 providers scored inside each one. Most travelers land on Moderate. Not sure? Take the quiz.
Light use, 1 to 3 GB
Maps and transit apps · Translation and messaging · Email and boarding passes
Sticking to trains, translation and messaging in Guernsey? HelloRoam takes Light at 86 out of 100. Nomad is next at 83. Nomad undercuts the winner at $3.00 a gigabyte against $3.50. Budget first, everything else second: Nomad. Holafly sells nothing this small, so it scores 31. A 3 GB plan for Guernsey runs $12.69.
| Provider | Plan at this size | Per GB at 0.5 GB/day | Tier match |
|---|---|---|---|
| HelloRoamMost Support LanguagesTier pick | Fixed 1 GB and 3 GB tiersPublished rate $3.50/GB | $3.50 | 86/100 |
| NomadLowest Fixed Rate | Fixed 1 GB and 3 GB tiersPublished rate $3.00/GB | $3.00 | 83/100 |
| SailyOnly Built-In VPN | Fixed 1 GB and 3 GB tiersPublished rate $3.99/GB | $3.99 | 77/100 |
| AiraloOnly Regional Bundles | Fixed 1 GB and 3 GB tiersPublished rate $4.50/GB | $4.50 | 74/100 |
| HolaflyBest Unlimited Value | No plan at this size, unlimited daily onlyPublished rate $2.99/day | No rate to quote | 31/100 |
Moderate use, 3 to 7 GB
Photo sharing and social apps · Browsing and short video · Music and a call home
Week in Guernsey with photos going up most evenings? The match score puts Holafly first here, 96 to HelloRoam's 86. The cheapest gigabyte at this usage is also Holafly's, $1.99. HelloRoam lands at 86, second best and beaten. A 5 GB plan for Guernsey runs $20.70.
| Provider | Plan at this size | Per GB at 1.5 GB/day | Tier match |
|---|---|---|---|
| HolaflyBest Unlimited ValueTier pick | Unlimited daily, no 5 GB tierPublished rate $2.99/day | $1.99 | 96/100 |
| HelloRoamMost Support Languages | Fixed 3 GB and 5 GB tiersPublished rate $3.50/GB | $3.50 | 86/100 |
| NomadLowest Fixed Rate | Fixed 3 GB and 5 GB tiersPublished rate $3.00/GB | $3.00 | 83/100 |
| SailyOnly Built-In VPN | Fixed 3 GB and 5 GB tiersPublished rate $3.99/GB | $3.99 | 77/100 |
| AiraloOnly Regional Bundles | Fixed 3 GB and 5 GB tiersPublished rate $4.50/GB | $4.50 | 74/100 |
Heavy use, 10 GB and up
Streaming and video calls · A full remote work day · Laptop hotspot
Working from Guernsey or streaming most nights? Holafly wins this tier 96 to 66, with HelloRoam second. The cheapest gigabyte at this usage is also Holafly's, $1.00. HelloRoam lands at 66, second best and beaten. Neither Saily and Nomad sells an unlimited day, so heavy use means buying the biggest bundle first.
| Provider | Plan at this size | Per GB at 3 GB/day | Tier match |
|---|---|---|---|
| HolaflyBest Unlimited ValueTier pick | Unlimited dailyPublished rate $2.99/day | $1.00 | 96/100 |
| HelloRoamMost Support Languages | Fixed up to 20 GB, unlimited in some destinationsPublished rate $3.50/GB | $3.50 | 66/100 |
| AiraloOnly Regional Bundles | Fixed up to 20 GB, unlimited in some destinationsPublished rate $4.50/GB | $4.50 | 54/100 |
| NomadLowest Fixed Rate | Fixed tiers only, no unlimited planPublished rate $3.00/GB | $3.00 | 43/100 |
| SailyOnly Built-In VPN | Fixed tiers only, no unlimited planPublished rate $3.99/GB | $3.99 | 37/100 |
The rate column is each provider's published entry price, worked out per gigabyte at the tier's daily usage. That is the only way a daily plan and a per-GB plan land on one scale. Published entry rates: Airalo $4.50/GB, Saily $3.99/GB, Holafly $2.99/day, Nomad $3.00/GB, HelloRoam $3.50/GB. Those are catalogue floors, not prices for Guernsey. Only one of the five publishes prices we can read per destination, and that is HelloRoam, so every Guernsey plan price above is HelloRoam's. The rest get their published floor and no destination quote.
How trip length changes your Guernsey plan
Short trips and extended stays need different data strategies. Find your trip length below.
Short trip (1-3 days)
For a weekend trip, 5GB handles moderate usage. The 5GB plan costs $20.70 on the local network your handset finds.
Standard trip (5-10 days)
Standard trips to Guernsey total 11GB. The 20GB at $60.83 handles a full week of social media and maps.
Extended stay (14-30 days)
Long stays in Guernsey require 32GB minimum. The 20GB at $60.83 covers moderate daily use on the local network your handset finds.
Your Guernsey shortlist, all 5 providers
Two questions decide most e-sim purchases: how big the bundle is and how long it lasts. Here is both, next to tethering, phone numbers and each published rate.
| Provider | Our rubric score | Min to max GB | Min to max validity | Hotspot | Local number | Entry rate | Action |
|---|---|---|---|---|---|---|---|
 HelloRoamMost Support LanguagesTop of our rubric | 8.7/10 | 1 GB to 20 GB, plus unlimited | Unlimited runs 1 to 30 days, fixed window not published | Not published | No, data only | $3.50/GB | Get Plan |
 HolaflyBest Unlimited Value | 8.6/10 | Unlimited daily, no GB tiers | 1 to 90 days | Capped at 1 GB per day | No, data only | $2.99/day | Get Plan |
 AiraloOnly Regional Bundles | 6.9/10 | 1 GB to 20 GB | 7 to 30 days | Included, full speed | No, data only | $4.50/GB | Get Plan |
 NomadLowest Fixed Rate | 6.6/10 | From 1 GB, top size not published | 30 days on the plans we list | Not published | No, data only | $3.00/GB | Get Plan |
 SailyOnly Built-In VPN | 6.5/10 | From 1 GB, top size not published | Not published | Included on all plans | No, data only | $3.99/GB | Get Plan |
Affiliate disclosure: We earn a commission when you buy through our links at no extra cost to you.
Who you're connecting to
In Guernsey, the underlying carrier matters more than the brand on your plan.
Carrier routing determines the right plan for each traveler type in Guernsey. Urban 4G LTE coverage in Guernsey runs mostly on Sure, which handles navigation, social apps and video calls without much fuss. No provider states its Guernsey routing, so compare what each one does publish. Crossing more than one border on this trip? Airalo is the only one of the five publishing a regional bundle, from 16 to 130 countries on a single profile. Reach costs it price: a published $4.50/GB, the dearest floor here. Holafly publishes unlimited daily plans from $2.99/day and no fixed bundle, so it is unlimited or nothing. Speeds drop after the daily fair-use threshold. Saily is the privacy option: Nord Security VPN on every plan, published from $3.99/GB. Support is the weak spot, email in a single language with no live channel. Nomad holds the lowest published fixed entry rate of the five at $3.00/GB, which is why light users should price it first. It publishes the smallest destination list, at 200. HelloRoam publishes the widest support access of the five, 63 languages on chat, WhatsApp and email around the clock, plus 180 days to refund an unactivated eSIM. It does not win price at $3.50/GB. With 1 4G LTE carrier in Guernsey, the network quality stays consistent. Your data needs decide the plan.
HelloRoam publishes its local operator list for Guernsey, and the next section prints that list in full. The other four providers publish no equivalent list, so the cards below carry published facts about each provider instead of a carrier we would be guessing at.
Airalo
4G LTEReaches the most destinations of the five, at 200.
Saily
4G LTEAdds VPN routing on every plan.
Holafly
4G LTEUnlimited daily plans with fair-use speeds after the threshold.
Nomad
4G LTELowest fixed per-GB rate of the five, at $3.00.
HelloRoam
4G LTERuns on 204+ carrier partners with a 180-day refund window.
Local networks a Guernsey eSIM attaches to
Before you buy, check the network. HelloRoam publishes one operator for Guernsey. That operator is Sure. 117 of the 185 destinations HelloRoam publishes work this way.
One operator means no fallback. If Sure has no bars where you stand, your phone has nowhere else to go. Save offline maps for Guernsey before you fly.
HelloRoam marks 5G on Sure. Your tier still comes from trip length and daily habits, not from the operator count.
| Local operator | Network labels |
|---|---|
| Sure | 5G |
Where this table came from: HelloRoam's own destination catalogue, read on 17 August 2026. That catalogue publishes an operator list for every destination it sells, and we copied it. Nobody ran a speed test to build it, and no throughput number sits behind any row.
What uses your data in Guernsey
Activity-level data breakdown for a Guernsey trip.
Streaming
Guernsey travelers who stream land on the 3 GB heavy band rather than the 1.5 GB moderate one. Over 7 days that is 21 GB against 11 GB, a difference the 20GB plan at $60.83 absorbs and a smaller tier does not.
Navigation
The light band is 0.5 GB a day, and maps plus a ride app fit inside it. A 7-day Guernsey trip on that band needs 4 GB. The 5GB plan at $20.70 is the tier that matches.
Social media
Feed scrolling and photo uploads land on the moderate band of 1.5 GB a day. 7 days in Guernsey works out at 11 GB, and the 20GB plan at $60.83 is the fit. Turning off autoplay video pulls the same day toward the 4 GB light total.
Work tools
The heavy band, 3 GB a day, is the one a remote worker buys against in Guernsey. Over 7 days that is 21 GB rather than the 11 GB a moderate traveler needs. The 20GB plan at $60.83 covers the gap.
Your Guernsey pricing notes
Here is what each plan tier costs in Guernsey: 1GB at $5.04 ($5.04/GB), 3GB at $12.69 ($4.23/GB), 5GB at $20.70 ($4.14/GB), 20GB at $60.83 ($3.04/GB). The per-GB rate drops as you buy larger plans. The 5GB tier delivers the strongest moderate-user value: $20.70 total, $4.14/GB, covering 4 days of 1.5GB daily use. Short-trip travelers spending 3-4 days in Guernsey pick 1GB at $5.04 and pay only for the data they need. If you need uncapped data in Guernsey, there is no unlimited daily plan yet. The 20GB fixed plan at $60.83 is the highest tier. The cheapest eSIM plan for Guernsey in our price feed is 1GB at $5.04, a catalogue price. Across published entry rates, Nomad sets the lowest fixed floor at $3.00/GB.
See how Guernsey compares to similar destinations in Europe. For device-specific setup, read our guides for iPhone, Samsung, and Pixel.
Regional bundle vs single-country plan
Regional bundles cover all of Europe under one plan. For Guernsey alone, plans start at $5.04 for 1GB. If you cross into neighboring countries, a regional eSIM avoids activation delays at each border.
How to activate your Guernsey eSIM
Choose your Guernsey data plan based on trip length and daily usage. Open your phone's cellular settings, tap "Add eSIM," and scan the QR code over WiFi before your flight.
Label the new line "Travel Data" and set it as your default data connection. Keep your home SIM active on the other line for calls and texts.
Your phone picks up Sure's 4G LTE network within seconds of landing in Guernsey. No SIM swap, no store visit, no registration line.
Common Guernsey eSIM questions
Direct answers grounded in real plan data and carrier coverage.
What plan do I need?
HelloRoam publishes one operator for Guernsey, Sure. Destination plans run from $5.04 (1GB) to $60.83 (20GB) on the catalogue, the only per-destination price feed we hold. For a 7-day trip, moderate users need about 3GB. The 3GB plan at $12.69 covers that.
How much data do I need?
The average smartphone user consumes about 15GB per month at home. A 7-day trip to Guernsey uses about 3GB, roughly 20% of a month's data. That is the 1.5 GB moderate band, which covers maps, social media and messaging. WiFi in Guernsey is available at hotels and some restaurants, offsetting about 10% of usage.
Which provider is cheapest?
Guernsey eSIM prices start at $5.04 for 1GB on the catalogue. No unlimited daily plan is sold here, so the per-GB cost drops only with larger bundles. For 7 days, most users need 11GB. Compare total trip cost across HelloRoam from $3.50/GB, Holafly from $2.99/day, Airalo from $4.50/GB, Nomad from $3.00/GB, Saily from $3.99/GB rather than headline rates. HelloRoam fits this trip shape best of the 5 we score.
Is an eSIM worth it?
An eSIM is worth it for Guernsey. WiFi in Guernsey covers hotels and some public areas, but an eSIM keeps you connected everywhere. The 20GB plan at $60.83 gives you 11GB on the local network your handset finds for 7 days. That is $49.17 less than carrier roaming.
eSIM vs SIM card?
For Guernsey, an eSIM works better for trips under 30 days. It costs $5.04 (1GB) and activates before you land on the local network your handset finds. A physical SIM costs $15-25 with 15-30 minutes of queue time. Long-stay travelers past 90 days should price a local prepaid SIM against the eSIM tier before buying.
How to set up?
Setting up an eSIM for Guernsey takes about 5 minutes. Step 1: Buy a plan sized to your trip. (Guernsey plans start at $5.04 for 1GB on the catalogue.) Step 2: Scan the QR code or use the direct install link. Step 3: Turn on the eSIM line in your phone settings. Step 4: Enable data roaming and set the eSIM as your data line. The plan connects to Sure when you arrive.
Plan match by traveler profile
Each profile maps to a specific plan size and provider for Guernsey.
Backpacker
A backpacker heading to Guernsey should budget 7 GB for maps and messaging across 14 days. That lands on the 20 GB plan, $60.83 on the local network your handset finds. HelloRoam sells the shape this trip needs; Nomad publishes the lower fixed floor.
Backpackers staying 7 days in Guernsey need 4GB for navigation and hostels. The 5GB plan at $20.70 matches.
Business traveler
Over 5 days in Guernsey, a business traveler runs through 15 GB on video calls and uploads. The 20 GB plan is priced at $60.83 here, $3.04 per GB, on the local network your handset finds. On published plan shape, HelloRoam is the closest fit of the five, and Airalo still reaches more places at 200.
Business travelers need 21GB for 7 days. The 20GB plan at $60.83 handles video calls and uploads on the local network your handset finds.
Family group
A family traveler uses 14 GB across 7 days in Guernsey on social media and navigation. The 20 GB plan at $60.83 matches that on the local network your handset finds, at $3.04 per GB. Of the five we score, HelloRoam publishes the plan shape that fits, at an entry rate of $3.50/GB.
Three travelers sharing Guernsey data need 32GB for 7 days. Each grabs the 20GB at $60.83 on the local network your handset finds.
Digital nomad
A digital nomad heading to Guernsey should budget 75 GB for remote work and streaming across 30 days. That lands on the 20 GB plan, $60.83 on the local network your handset finds. The shape fit here is HelloRoam, which answers support in 63 languages and refunds for 180 days.
A nomad spending 7 days in Guernsey burns 21GB. The 20GB at $60.83 on the local network your handset finds covers co-working sessions.
Your questions, answered
How many gigabytes per day should I budget in Guernsey?
Your daily rate in Guernsey comes down to one habit: streaming. If you keep to maps and messaging, budget 0.5 GB a day, which is 4 GB across 7 days. If you scroll social media and browse each evening, budget 1.5 GB a day, or 11 GB for the trip, and the 20 GB plan at $60.83 covers the moderate figure. If you stream video or join work calls, budget 3 GB a day and 21 GB in total on the local network your handset finds.
Which plan shape fits my Guernsey trip, fixed tiers or unlimited days?
Two habits, one shape in Guernsey. Casual visitors on maps, messaging and social media use around 11 GB across 7 days, and the 20 GB plan at $60.83 fits that. Streamers and remote workers need the 20 GB plan at $60.83. Neither group gets an unlimited option here. Holafly publishes unlimited daily plans across the catalogue. HelloRoam and Airalo publish them for selected destinations only. There is no unlimited option from Nomad and Saily, fixed tiers only. Holafly publishes nothing by the gigabyte, so light users have no small plan to buy. Both tiers run on the same local network at the same speed, so the only difference is how much data you hold.
Which eSIM plan fits a light or heavy data user in Guernsey?
Three personas for Guernsey eSIM sizing. The minimalist traveler (WhatsApp, offline maps, brief Google searches) needs 4 GB over 7 days. Buy the 5 GB plan at $20.70. The connected explorer (social media, navigation, daily browsing) needs the 20 GB plan at $60.83. The road warrior (video calls, streaming, cloud sync) needs 21 GB, and the 20 GB plan at $60.83 ($3.04/GB) is the largest tier sold here, so a heavy pace needs a second purchase or an unlimited plan.
What should I check on my phone before I buy a Guernsey plan?
iPhone owners are covered from the XS onward. Samsung owners are covered from the Galaxy S20 onward. Pixel owners are covered from the Pixel 3 onward. Every one of those handsets still has to be carrier-unlocked, and every one should be checked with *#06# for an EID line first. Once the eSIM profile is installed, Guernsey's 4G LTE network connects with no physical SIM in the phone. Some sites write e-SIM, others write e SIM. Same profile either way.
What starts the clock on a Guernsey plan, the purchase or the landing?
Landing starts the clock, so time the purchase to the flight. Buy 1 to 3 days before you fly and install the QR code over home WiFi, which does not trigger the countdown. The first network connection in Guernsey does. The 1 GB plan at $5.04 suits a short stay. The 20 GB plan at $60.83 suits a longer one. Installing early is the part that matters: airport WiFi is the worst place to discover a QR code will not scan.
Is one Guernsey plan enough if my route crosses into another EU country?
One country plan covers one country. The signal ends where the country does. The Guernsey 5 GB plan at $20.70 works out to $4.14/GB for a single-destination trip. A regional bundle trades a higher per-GB rate for one purchase across a route. Crossing borders? Airalo is the only one of the five selling a bundle that spans countries. HelloRoam and Nomad state plainly that no regional bundle exists yet. Nothing published by Holafly and Saily on regional bundles, in either direction. EU roaming regulation sits outside all of this and does not apply to prepaid travel eSIMs.
Which activities use the most mobile data in Guernsey?
The photo sharer and the navigator both live inside the 1.5 GB moderate band in Guernsey. The streamer and the remote worker both live on the 3 GB heavy band. That is the whole split, and it is the split the tier ladder is built around. The 5 GB plan at $20.70 covers a moderate traveller on the local network your handset finds, at $4.14/GB.
How do I match a Guernsey plan tier to the number of nights I am staying?
If you use 1.5 GB a day in Guernsey, match nights to tier directly: 1 to 2 nights takes the 3 GB plan at $12.69 ($4.23/GB); 3 nights takes the 5 GB plan at $20.70 ($4.14/GB); 4 to 13 nights takes the 20 GB plan at $60.83 ($3.04/GB). If you stream video, add 20% before choosing. The 20 GB plan holds the lowest per-GB rate here at $3.04/GB. If your nights land on the boundary between two tiers, take the larger one, since the price gap between neighbouring tiers is smaller than the cost of running dry.
What is the data ceiling if Guernsey has no unlimited plan?
The ceiling is the 20 GB plan at $60.83 ($3.04/GB), because no unlimited daily option is sold for Guernsey right now. Size to 25% above what you expect to use, since unused data does not roll over and running out mid-trip costs more to fix. Shapes differ across the five providers we score. Holafly publishes unlimited daily plans across the catalogue. HelloRoam and Airalo publish them for selected destinations only. There is no unlimited option from Nomad and Saily, fixed tiers only. Holafly publishes nothing by the gigabyte, so light users have no small plan to buy.
Which provider backs up a mis-sized Guernsey plan?
Check the refund window before you buy, not after the plan disappoints you. HelloRoam and Holafly publish 180 days, Nomad and Saily 30 days and Airalo 14 days, each on an unactivated eSIM. Once the profile connects to a Guernsey network, none of those windows applies, which is the detail most travelers miss. Support is your other fallback: HelloRoam publishes 63 languages over live chat, WhatsApp and email, around the clock. Sizing up first is still cheaper than any refund: the 20 GB plan holds the lowest rate here at $3.04/GB.
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