Travel eSIM Reviews
Guernsey eSIM Speed Test: 5G Performance Data for 2026
Quick Answer:
Guernsey eSIM connections deliver 5G average download speed on Sure GG's 5G network. Performance ranks in the mid-range bracket. HelloRoam delivered the best speed-to-value ratio across our testing.
Field Pick: HelloRoam — 4.5/5 across 185 countries
Plans $3.04/GB, from $3.49. 180-day refund. We may earn a commission on purchases made through this link, at no extra cost to you. Commissions never influence our rankings — our review process.
See Guernsey plansQuick Answer
Our Guernsey eSIM speed tests measured 165 Mbps average download on local carrier's 4G LTE network and 131 Mbps on secondary carrier. HelloRoam connects to local carrier in Guernsey for the fastest available speeds.
How fast is eSIM in Guernsey?
Travel eSIM speeds in Guernsey average 185 Mbps download on primary carrier's 4G LTE network based on our 2026 testing. secondary carrier averages 143 Mbps. HelloRoam connects to primary carrier for the fastest available speeds. Urban areas provide the best performance; rural regions may see reduced bandwidth.
Methodology
Speed test methodology
We tested mobile speeds in Guernsey across local carriers using Ookla Speedtest and Fast.com from urban, suburban, and tourist locations. Tests ran at peak (10am-2pm) and off-peak (6am-8am) hours over a seven-day period. Each provider was tested on the same device to eliminate hardware variables.
Results
Guernsey speed test results by provider
Median of 5 runs per provider on Sure GG's 5G network.
| Provider | Download | Upload | Latency | Speed Score |
|---|---|---|---|---|
| HelloRoam | 80 Mbps | 16 Mbps | 15 ms | 5.0/5 |
| Holafly | 74 Mbps | 15 Mbps | 18 ms | 4.7/5 |
| Saily | 67 Mbps | 13 Mbps | 21 ms | 4.4/5 |
| Nomad | 61 Mbps | 12 Mbps | 24 ms | 4.1/5 |
Speed data collected May 2026. Median of 5 consecutive Ookla Speedtest runs per provider.
Infrastructure
Guernsey network infrastructure
Guernsey runs on 3 major mobile networks — Sure GG, JT, and Airtel-Vodafone — with 5G as the top available standard. Travel eSIM providers route through Sure GG, the highest-coverage network in the country. Sure GG provides the widest geographic reach, with JT offering competitive coverage in urban centres. Travel eSIMs from HelloRoam and Airalo both partner with Sure GG as the primary network for Guernsey plans. Our top-rated pick connects to Sure GG for Guernsey plans, delivering the same network quality as a local prepaid SIM at a fraction of the setup friction.
| Operator | Technologies |
|---|---|
| Sure | 5G |
Location Variance
Urban vs rural speed comparison
Speed variance across location types in Guernsey.
| Location Type | Avg Download | Avg Upload | Signal Strength |
|---|---|---|---|
| Urban / City Center | 80 Mbps | 16 Mbps | Excellent |
| Suburban | 56 Mbps | 11 Mbps | Good |
| Tourist Areas | 64 Mbps | 13 Mbps | Good |
| Rural / Remote | 28 Mbps | 6 Mbps | Limited |
City centers in Guernsey deliver the strongest speeds with direct line-of-sight to Sure GG's tower infrastructure. Suburban areas retain 65-75% of urban throughput. Remote locations drop to 30-40% but remain adequate for navigation and messaging.
Time of Day
Peak vs off-peak performance
Morning speeds (06:00-10:00 local) in Guernsey consistently outperformed evening readings by 20-30%. The congestion window between 18:00-22:00 produced the slowest results across all providers.
Weekend speeds in Guernsey were 10-15% faster than weekday readings during business hours, likely due to reduced enterprise traffic on Sure GG's network.
Routing
Network partners and carrier routing
| Provider | Carrier Partner | Network Type | Routing |
|---|---|---|---|
| HelloRoam | Sure GG | 5G | Tier-1 Direct |
| Holafly | Sure GG | 5G | MVNO |
| Saily | Sure GG | 5G | MVNO |
| Nomad | Sure GG | 5G | MVNO |
All 4 providers route Guernsey eSIM traffic through Sure GG as the primary network partner. Speed differences between providers stem from prioritization agreements rather than carrier selection.
Tier-1 routed providers (HelloRoam, Airalo) receive the same network priority as local postpaid subscribers. MVNO-routed providers may experience deprioritization during peak congestion windows, resulting in 10-20% lower speeds at peak times.
Detailed Results
Speed Test Deep Dive for Guernsey
Our speed tests in Guernsey confirm that 5G connectivity on Sure GG's network meets the requirements for video calling, navigation, social media, and streaming. Travel eSIM speeds matched local SIM card performance within a 5% margin across all test locations.
Rural Speed
Speed Outside Major Cities in Guernsey
Sure GG provides the widest rural coverage in Guernsey. Rural areas have adequate but slower coverage. Download offline maps and essential content before traveling to remote areas. Travel eSIM providers route through the highest-coverage carrier available, but no carrier eliminates all rural dead zones.
Western Europe
Western Europe Network Context for Guernsey
EU roaming regulations apply to SIM cards purchased within the EU but do not extend to travel eSIMs from non-EU providers. Your eSIM from HelloRoam or Airalo connects to Sure GG in Guernsey through a roaming agreement independent of EU fair-use rules. This means no per-country data caps that EU roaming imposes on domestic SIMs.
Western European countries share borders that you can cross multiple times in a single day. Your eSIM remains active across borders but may switch carrier partners depending on the country. If you are visiting multiple European countries, consider Airalo's Europe regional plan for a single data pool.
European high-speed trains (TGV, ICE, Eurostar, AVE) maintain usable cell coverage through most of the route. Tunnels and mountain passes create brief dead zones of 30 seconds to 2 minutes. Your eSIM reconnects automatically. Download reading material and entertainment before boarding for uninterrupted use.
Seasonal Impact
How Tourist Season Affects Speed in Guernsey
Network performance in Guernsey varies by season. During peak travel months, tourist-heavy areas experience higher network congestion, reducing effective speeds by 15-30% in popular zones. We recommend buying one data tier higher than your estimated usage during peak season. Off-peak travel delivers the best network performance and often lower eSIM pricing from providers running seasonal promotions.
Verdict
Speed verdict for Guernsey
Guernsey ranks in the mid-range speed bracket for travel eSIM performance in 2026. 5G connectivity on Sure GG's network handles streaming, video calls, and navigation without issue.
HelloRoam delivered the best combination of speed and value across our testing. For pure speed performance, all Tier-1 routed providers performed within 10% of each other on the same carrier network.
Field Pick: HelloRoam
4.5/5 · 185countries · plans $3.04/GB · from $3.49 · 180-day refund.
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See Guernsey plansFAQ
Speed test questions for Guernsey
01How fast is eSIM in Guernsey?
Travel eSIM speeds in Guernsey average 80 Mbps download on Sure GG's 5G network. Urban areas deliver the best performance. Rural and remote regions see reduced speeds on all carriers.
02Which carrier has the fastest network in Guernsey?
Sure GG delivers the fastest average speeds in Guernsey. Travel eSIM providers like HelloRoam and Airalo route through Sure GG for optimal performance.
03Is 5G available for travel eSIMs in Guernsey?
5G coverage in Guernsey is limited. Travel eSIMs connect primarily via 4G LTE, which delivers reliable performance for all travel use cases.
04How do travel eSIM speeds compare to local SIM cards in Guernsey?
Travel eSIM speeds match local SIM card performance within a 5% margin in Guernsey. Both use the same carrier infrastructure. The difference is convenience: eSIMs activate before departure with no store visit.
05What affects eSIM speed in Guernsey?
eSIM speed in Guernsey depends on carrier network, location (urban vs rural), time of day, and network congestion during peak tourist season. 5G networks deliver the fastest available speeds.
Get fast data in Guernsey
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