JEAll Jersey 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 | ￥1,518 | JT | 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 |
Jerseyのおすすめトップ3
Jerseyで利用可能な5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。 その中から5件が際立っていました。
メリット： 1GBあたりの価格が最安値、高速開通、JTでのJersey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 Jersey
JT (Jersey Telecom) is Jersey's domestic network and the primary carrier for international visitor eSIM plans. JT operates 4G across the full island. The network is separate from UK and Guernsey networks.
Coverage is consistently strong given Jersey's small landmass and dense infrastructure. JT handles all HelloRoam eSIM plans for Jersey.
通信範囲の分析
JT 4G covers St. Helier's town center, the Finance Quarter, First Tower, and Millbrook. The island's coastal roads including the Five Mile Road on St.
Ouen's Bay get 4G. Eastern parishes including Grouville and St. Martin near Gorey Castle have strong coverage.
The north coast cliffs and Jersey Zoo at Trinity are fully covered. Rural interior farmland gets consistent 4G. Jersey Airport connects immediately.
開通方法
Scan the HelloRoam QR code to install the eSIM before traveling. JT activates automatically at Jersey Airport (JER) or when arriving by ferry at the Elizabeth Terminal in St. Helier.
No local registration or shop visit required. iPhone XS or newer and Galaxy S20 or newer support eSIM in Jersey. Your device must be unlocked from your home carrier.
データ通信の活用のコツ
Jersey visitors use 200-400 MB per day for Maps navigation around the island's small road network, beach spotting, and restaurant lookups in St. Helier. Finance sector business visitors in the town's banking district use 300-500 MB per day for corporate communications.
Coastal walkers along the 56 km Jersey Coastal Walk can manage fine on 150-200 MB per day with a downloaded offline map. St. Helier's Liberation Square and main shopping district have strong signal for contactless payments and navigation.
Jerseyのプラン評価方法
Jersey eSIM plans start at $3.35/day for unlimited data on JT 4G. The 7-day plan costs $22.48 and the 30-day plan costs $85.85. Given that Jersey sits outside both UK and EU roaming agreements, an eSIM is significantly cheaper than activating roaming add-ons from most UK or European carriers.
Best eSIM plans for Jersey in 2026
| プラン | ネットワーク | 有効期限 | 価格 |
|---|---|---|---|
| Jersey Unlimited 1Day ⭐ | JT | 1d / 0GB | ￥509 |
| Jersey Unlimited 3Days | JT | 3d / 0GB | ￥1,464 |
| Jersey Unlimited 7Days | JT | 7d / 0GB | ￥3,417 |
| Jersey Unlimited 14Days | JT | 14d / 0GB | ￥6,610 |
| Jersey Unlimited 30Days | JT | 30d / 0GB | ￥13,049 |
Prices verified: May 2026
Questions about Jersey eSIMs
What is the best eSIM option for Jersey?+
Does UK or EU roaming work in Jersey?+
How much does an eSIM for Jersey cost?+
Which network does an eSIM use in Jersey?+
How do I activate an eSIM in Jersey?+
Is unlimited data available for Jersey eSIMs?+
Does my phone support eSIM in Jersey?+
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プロバイダーレビュー
Jersey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。
