GGAll Guernsey eSIM plans compared
| 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 | 総合最高 |
| Airalo | ￥2,432 | 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・開通速度・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： 1GBあたりの価格が最安値、高速開通、SureでのGuernsey通信カバレッジ。 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。
Network coverage in Guernsey
Sure (operated by Sure Guernsey Ltd) is the primary carrier and dominant telecom provider on the island. JT Group (Jersey Telecom) also has a presence in the Channel Islands. Sure provides 4G LTE and 3G across all populated areas of Guernsey.
UK networks including EE, O2, and Vodafone treat Guernsey as international roaming. Sure is the only carrier offering local-rate eSIM plans for visitors to the island.
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 activates your plan within minutes of arriving on the island. No registration counter required.
UK travelers should note that their home plan will charge international roaming rates in Guernsey unless specifically included. iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer support eSIM. 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のプラン評価方法
Guernsey eSIM plans start at $5.04 on Sure. HelloRoam provides unlimited plans for the island. UK travelers who do not check their roaming status may face unexpected charges; a dedicated Guernsey eSIM is the clean solution.
Guernsey sits in a similar price bracket to other small UK Crown dependencies like Jersey and the Isle of Man.
Best eSIM plans for Guernsey in 2026
| プラン | ネットワーク | 有効期限 | 価格 |
|---|---|---|---|
| Guernsey Data Plan ⭐ | Sure | 7d / 0GB | ￥766 |
Prices verified: May 2026
Questions about Guernsey eSIMs
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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。
