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Guernsey eSIM prices: HelloRoam from $5.04 for 1 GB
| プロバイダー | 価格（5GB） | 通信範囲 | 評価 | こんな方におすすめ |
|---|---|---|---|---|
| HelloRoam | ￥3,146 | Sure | 4.9/5 | データ専用の旅行プラン |
| Airalo | 未検証 | 200カ国以上 | 4.5/5 | 最多渡航先 |
| Holafly | 無制限 | 160カ国 | 4.2/5 | ヘビーユーザー |
Guernseyのおすすめトップ3
Guernseyで利用可能な4件のeSIMプランを評価し、確認済み価格・ネットワーク通信範囲・データ追加購入の可否・アプリ品質を比較しました。 おすすめのオプションをご紹介します。
メリット： SureでのGuernsey通信カバレッジ、全プランでテザリング対応、未開通eSIMは180日間返金可。 デメリット： 比較的新しいブランドで、Airaloよりコミュニティが小さい。
| ティア | 期間 | 割引 | 開始価格 |
|---|---|---|---|
| ショートステイ | 1-2日 | 4%オフ | $6.70$3.35/日 · 2d |
| ウィークパッケージ | 3-9日 | 8%オフ | $22.48$3.21/日 · 7d |
| 延長ステイ | 10-19日 | 11%オフ | $31.06$3.11/日 · 10d |
| マンスリーパッケージ | 20-29日 | 15%オフ | $59.33$2.97/日 · 20d |
| 長期滞在最もお得 | 30-365日 | 18%オフ | $85.85$2.86/日 · 30d |
メリット： 200カ国以上対応、チャージ可能、最大のコミュニティ。 デメリット： 一部ルートでは新興プロバイダーより割高で、サポートの応答時間にムラがある。
メリット： 真の無制限データ、速度制限なし、24時間365日ライブチャットサポート。 デメリット： プレミアム価格で、1GBあたりの選択肢なし。
Guernsey network coverage on Sure
HelloRoam runs its Guernsey plans on Sure, the island's dominant operator, which is what keeps the cliff-path circuit and St Peter Port on one 4G network while EE, O2, and Vodafone bill the same ground as international roaming. JT Group, based in Jersey, also has a Channel Islands presence. Sure provides 4G LTE and 3G across all populated areas of Guernsey and is the single network listed on all 4 Guernsey plans on file.
It is the only carrier offering local-rate eSIM plans to visitors here.
通信範囲の分析
Sure 4G LTE covers all of Guernsey's populated areas, including St Peter Port, St Sampson, the Vale in the north, and the southern cliff parishes. Guernsey Airport (GCI) connects on arrival. The coastal footpaths circling the island have 4G throughout.
Herm Island (accessible by boat from St Peter Port) has basic Sure coverage in the main areas. Sark, a car-free island also accessible by ferry, has limited coverage. Download offline maps for Sark excursions.
開通方法
Install your eSIM QR code before flying into Guernsey Airport (GCI) or taking the ferry from Poole or Portsmouth. Sure registers the profile once you are on the island, with no registration counter to visit. UK travelers should note that a home plan bills international roaming in Guernsey unless the island is specifically included. iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer support eSIM.
Your device must be carrier-unlocked.
データ通信の活用のコツ
Budget 350-450 MB per day for cliff path navigation, St Peter Port restaurant guides, WhatsApp, and ferry or bus timetables. The German military fortifications and bunkers from the WWII occupation are scattered across the island. Navigation apps use under 50 MB per site.
Tax-free shopping in St Peter Port uses minimal data. Download offline maps for Herm and Sark day trips, as signal is limited on those smaller islands.
GuernseyのeSIMプラン料金
Guernsey carries 4 plan sizes on Sure 4G. The 1 GB plan costs $5.04 over 7 days and covers a weekend of St Peter Port and coastal walks. The 3 GB plan costs $12.69 and the 5 GB plan $20.70, both over 30 days.
The 20 GB plan costs $60.83 and gives $3.04/GB across the 4. There is no 10 GB size and no daily plan on file for Guernsey, so the sizes jump from 5 GB straight to 20 GB. Verdict: HelloRoam prices Guernsey from $5.04 for 1 GB on Sure 4G, across 4 sizes.
All 4 Guernsey eSIM plans from $5.04 for 1 GB
| プラン | ネットワーク | 有効期限 | 価格 |
|---|---|---|---|
| Guernsey 20GB 30Days ⭐ | Sure | 30日 / 20 GB | ￥9,246 |
| Guernsey 5GB 30Days | Sure | 30日 / 5 GB | ￥3,146 |
| Guernsey 3GB 30Days | Sure | 30日 / 3 GB | ￥1,929 |
| Guernsey 1GB 7Days | Sure | 7日 / 1 GB | ￥766 |
Prices verified: 2026年5月22日
Guernsey eSIM questions answered
What is the best eSIM for Guernsey?+
Which eSIM should I buy for Guernsey?+
Will my UK phone plan work in Guernsey?+
How much does an eSIM for Guernsey cost?+
Which network does an eSIM use in Guernsey?+
Is there eSIM coverage on Herm and Sark islands?+
Does my phone support eSIM in Guernsey?+
How much data do I need for a weekend trip to Guernsey?+
Is Guernsey good for remote working?+
プロバイダーレビュー
Guernseyで利用可能なトップeSIMプロバイダーの詳細レビューをご覧ください。
