GuernseyのeSIMプラン

Guernsey eSIM prices: HelloRoam from $5.04 for 1 GB

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。

HelloRoam

価格確認済み

￥3,146

5GB / 30日間

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とチャージに対応、63言語で24時間365日サポート、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。

HelloRoamを見る詳細レビュー

Airalo

最も人気

未検証

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。

Airaloを見る詳細レビュー

Holafly

無制限プラン最強

未検証

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。

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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

Prices verified: 2026年9月20日

Guernsey eSIM questions answered

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。