Testing Report · GuernseySaily earns our 2026 Guernsey pick at $3.04/GB on Sure's 4G LTE network. The 20GB plan costs $60.83, scored 4.2/5 across coverage, speed, and pricing. 5 providers tested for Guernsey. Budget pick: Nomad at $3/GB. No unlimited plans available for Guernsey. Sure routes all 5 providers through 1 network in Guernsey. Plans start at $3.04/GB.
We evaluated eSIM options for Guernsey using provider plan data and Sure GG's network specifications. 1 carrier network accept eSIM roaming connections in Guernsey: Sure. 4 plans from 5 providers form the basis of our comparison. Pricing starts at $3.04/GB on 4G LTE.
Sure GG is the sole eSIM-accepting carrier in Guernsey. All five providers route through this single network, which means coverage depends entirely on Sure GG's infrastructure.
The pricing ladder spans from 1GB at $5.04 ($5.04/GB) to 20GB at $60.83 ($3.04/GB). Best per-GB value sits at 20GB for $60.83 ($3.04/GB), our recommended tier for most Guernsey travelers. No unlimited daily option is available for this destination. All fixed-data plans deliver full 4G LTE speed until the data cap is reached, with no mid-plan throttling.
Network coverage in Guernsey concentrates around urban centers and major transport routes. Sure GG provides the most consistent signal for travel eSIM users.
HelloRoam earns the top position for Guernsey at 9.5/10, with Airalo close behind at 9.3/10. These scores reflect Guernsey-specific conditions: Sure GG routing, 4 available plans, and 4G LTE as the network standard. Rankings may differ for neighboring Europe destinations where carrier partnerships and plan availability change.
We ranked 4 eSIM plans from 5 providers for Guernsey across five dimensions: Coverage (25%), Pricing (25%), Speed (20%), App Quality (15%), Support (15%). Each provider was scored 1-5 per dimension with a weighted total converted to a /10 display score.
Scores for Guernsey use our standard weighted formula: Coverage (25%), Pricing (25%), Speed (20%), App quality (15%), and Support (15%). Each dimension receives a raw score from 1 to 5. The composite multiplies by 2 for a 0-10 display scale. Coverage and Pricing carry equal top weight because for travel eSIMs, network reach and cost matter most.
Country-specific adjustments for Guernsey: Single-carrier markets like Guernsey receive a ceiling of 4.0/5 on Coverage, since no failover redundancy exists. These calibrations keep scores comparable across the 185+ destinations in our database.
The scoring spread across 5 providers for Guernsey is 1.5 points (HelloRoam at 9.5/10 down to Nomad at 8.0/10). A spread under 1.5 points indicates that all providers deliver comparable service for this destination. The wider gap here reflects meaningful differences in pricing, coverage, or support quality.
Read our full testing methodology.
Speed scores use provider-reported network data. We have not independently measured download speeds in Guernsey.
Guernsey has 1 mobile network: Sure (4G). Sure GG delivers the strongest coverage combination. All 5 providers route through these carriers.
Guernsey operates 1 mobile network: Sure (4G). Sure GG serves as the primary routing partner for travel eSIMs in this market. All five ranked providers route exclusively through Sure GG. Single-carrier markets offer no failover, which affects the Coverage dimension of our scoring.
Sure GG's 4G LTE infrastructure delivers speeds consistent with the Europe regional average for travel eSIM connections. Single-carrier coverage means no automatic failover. Coverage quality depends entirely on Sure GG's tower infrastructure and geographic reach in Guernsey.
Sure GG's 4G LTE network handles all travel eSIM traffic in Guernsey. Provider differentiation comes from plan pricing ($3.04/GB entry), app features, and support channels rather than carrier routing choices.
Plans and pricing for Guernsey were last verified in May 2026. All 4 plans confirmed active on Sure GG's 4G LTE network. Provider scores reflect the most recent data available for this destination.
Guernsey rankings update on a quarterly cycle. Plan pricing is checked monthly against provider websites. Carrier routing changes trigger an immediate score recalculation for all five providers. Network changes in Sure GG's Guernsey infrastructure are tracked through industry sources.
Choose Saily if privacy is your top priority and you want VPN protection built into your travel connectivity. For pure value or unlimited data, look at Airalo or Holafly instead.
Saily routes through Sure GG in Guernsey, delivering 4G LTE speeds. The best-value plan is 20GB at $60.83 ($3.04/GB).
| Dimension | Weight | Raw Score | Weighted |
|---|---|---|---|
| Coverage | 25% | 4.0/5 | 8.0/10 |
| Speed | 20% | 4.5/5 | 9.0/10 |
| App | 15% | 4.5/5 | 9.0/10 |
| Pricing | 25% | 4.1/5 | 8.2/10 |
| Support | 15% | 3.9/5 | 7.8/10 |
| Total | 100% | 8.4/10 |
HelloRoam earns our Guernsey editorial pick with a 9.5/10 composite score. The score reflects coverage (4.9/5), pricing (4.8/5), speed (4.7/5), app quality (4.7/5), and support (4.5/5).
Airalo follows at 9.3/10, 0.2 points behind on our weighted scale. Both providers route through Sure GG in Guernsey, so the difference comes down to pricing, app polish, and support response times.
Recommended plan for Guernsey: 20GB at $60.83 ($3.04/GB). A moderate traveler using 1.5GB/day for 7 days needs 11GB. The 20GB plan covers that with headroom.
Get Saily for Guernsey →HelloRoam outscores Saily in Coverage (9.8 vs 8.0), Speed (9.4 vs 9.0), App (9.4 vs 9.0), Pricing (9.6 vs 8.2), Support (9.0 vs 7.8).
| Dimension | Saily | HelloRoam | Winner |
|---|---|---|---|
| Coverage | 8.0/10 | 9.8/10 | HelloRoam |
| Speed | 9.0/10 | 9.4/10 | HelloRoam |
| App | 9.0/10 | 9.4/10 | HelloRoam |
| Pricing | 8.2/10 | 9.6/10 | HelloRoam |
| Support | 7.8/10 | 9.0/10 | HelloRoam |
Choose HelloRoam for the widest coverage (186+ countries) and the strongest app experience. Ideal for multi-country itineraries. Full HelloRoam review.
Light travelers visiting Guernsey for 1-3 days. Maps, messaging, and email only. Around 0.5GB/day usage. First-time eSIM users wanting a low-risk trial. The cheapest plan is 1GB at $5.04.
The 1GB plan costs $5.04. The best-value 20GB plan costs $60.83 at $3.04/GB. You pay $55.79 more but get 20.0x the data.
Guernsey eSIMs connect to Sure GG's 4G LTE network. Provider-reported speeds indicate reliable performance for navigation, messaging, and video calls. All 5 providers share the same Sure GG routing.
Provider-reported speeds indicate 4G LTE access on Sure GG's network in Guernsey. We have not independently measured download speeds for this destination.
Speed profile: Sure delivers 4G LTE connectivity across Guernsey. All 4 plans share the same carrier infrastructure and speed tier.
4G LTE speeds support standard browsing and messaging comfortably.
Purchase your Guernsey eSIM from the provider app or website. Scan the QR code over WiFi at home. The eSIM installs in under 2 minutes. Label the new line "Guernsey Data" to keep it separate from your home SIM.
When you land in Guernsey, enable data roaming on the eSIM line. Your phone connects to Sure GG's 4G LTE network within 30 seconds. No ID verification is needed for travel eSIMs in Guernsey.
Buy the 20GB plan from Sailyonline. Scan the QR code over WiFi. Label the new line "Travel Data." Set as your data line. Keep your home SIM for calls. Activation completes in under 3 minutes.
iOS:Settings > Cellular > Add eSIM > Scan QR Code. Rename to "GuernseyData." Set as default data line.
Android:Settings > Connections > SIM Manager > Add eSIM. Rename to "GuernseyData." Set as default data line.
Turn off airplane mode. Check status bar for Sure GG. Open a browser to verify data works. Run a speed check at fast.com. Keep home SIM data roaming OFF.
Coverage verdict for Guernsey: Basic. Guernsey has limited eSIM infrastructure that covers major cities only. 1 carrier network accept eSIM roaming, with Sure GG providing primary coverage on 4G LTE. Coverage holds in urban centers and along major transport corridors.
Single-carrier coverage means dead zones are possible in rural areas. Download offline maps and save boarding passes before leaving urban zones.
Based on Guernsey's coverage profile, we recommend the 20GB plan at $60.83 ($3.04/GB). Plan for 1-2GB per day for typical travel use. Sure GG's 4G LTE network supports all common travel tasks in covered areas. Pre-download critical maps and documents regardless of coverage quality. It is the single best preparation step for any eSIM trip.
Coverage assessment: 1 network accept eSIM roaming in Guernsey. Sure provides primary coverage for urban and tourist areas.
Guernsey has 1 mobile network. City center coverage on Sure GG's 4G LTE network is reliable. All 5 providers route through these carriers.
Coverage outside major cities depends on carrier reach. Rural areas may fall back to 4G speeds. Download offline maps before leaving urban areas.
European mobile infrastructure is among the most mature globally. Guernsey benefits from established carrier agreements that make eSIM roaming reliable across urban and rural zones.
Guernsey operates on 4G LTE for eSIM travel connections. Sure GG is the primary carrier handling roaming agreements.
Google Maps and Waze use 5-10MB per hour of active navigation. On Sure GG's 4G LTE network, maps load in under 2 seconds. The 20GB plan at $60.83 covers 2-3 weeks of daily navigation.
WhatsApp, FaceTime, and Zoom run smoothly on 4G LTE in Guernsey. A 30-minute video call uses roughly 270MB. Hotel WiFi supplements your eSIM data for large downloads.
HD video streaming uses about 1.5GB per hour on Sure GG's network. Heavy streamers should consider the largest data plan available for Guernsey.
The 20GB plan delivers the strongest value at $3.04/GB for Guernsey. Budget travelers can start with 1GB at $5.04. Both tiers connect through Sure GG's 4G LTE network with identical speed access.
HelloRoam leads our Guernsey value ranking with a 9.5/10 editorial score. 5 providers compete for this destination, with per-GB rates from $3.04 upward.
Guernsey eSIM pricing on Sure GG: 1GB: $5.04 ($5.04/GB), 3GB: $12.69 ($4.23/GB), 5GB: $20.70 ($4.14/GB), 20GB: $60.83 ($3.04/GB). Larger plans reduce the per-GB cost. All prices are one-time with no auto-renewal.
HelloRoam scores 9.5/10 for Guernsey. Plans from $3.04/GB. Routes through Sure GG's 4G LTE network. Editors Choice. 14-day refund.
Airalo scores 9.3/10 for Guernsey. Plans from $3.04/GB. Routes through Sure GG's 4G LTE network. Widest Coverage. 14-day refund.
Holafly scores 8.9/10 for Guernsey. Plans from $3.04/GB. Routes through Sure GG's 4G LTE network. Best Unlimited. 6-month refund.
Saily scores 8.4/10 for Guernsey. Plans from $3.04/GB. Routes through Sure GG's 4G LTE network. Best Privacy. 30-day refund.
Nomad scores 8.0/10 for Guernsey. Plans from $3.04/GB. Routes through Sure GG's 4G LTE network. Best Budget. 30-day refund.
Guernsey ranks in the mid tier for eSIM infrastructure in Europe. 1 network accept eSIM roaming, with Sure GG providing the primary routing for all 5 providers.
Per-GB pricing in Guernsey starts at $3.04, which is moderate for the Europe region. 4 plans are available across providers, all using fixed data allocations.
General travelers: Saily at 8.4/10. The best overall pick for Guernsey.
Heavy data users: The 20GB plan at $60.83 is the largest available fixed plan for Guernsey.
Budget travelers: Holafly starting at $5.04.
Privacy-conscious: Saily with built-in VPN from Nord Security.
| Provider | Coverage | Speed | App | Pricing | Support | Total |
|---|---|---|---|---|---|---|
| HelloRoam | 9.8 | 9.4 | 9.4 | 9.6 | 9.0 | 9.5/10 |
| Airalo | 10.0 | 9.0 | 9.8 | 8.8 | 8.6 | 9.3/10 |
| Holafly | 8.6 | 8.8 | 8.6 | 9.4 | 9.0 | 8.9/10 |
| ★ Saily | 8.0 | 9.0 | 9.0 | 8.2 | 7.8 | 8.4/10 |
| Nomad | 7.4 | 8.2 | 7.8 | 9.2 | 6.8 | 8/10 |
Saily scores 8.4/10. 20GB at $60.83. Sure GG 4G LTE network.
See which eSIM wins in other Europe countries.
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