GuamのeSIMプラン

Guam eSIM prices: HelloRoam from $7.99 for 1 GB

Guamのおすすめトップ3

Guamで利用可能な6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。 その中から5件が際立っていました。

HelloRoam

価格確認済み

￥3,032

5GB / 30日間

メリット： GTA WirelessでのGuam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。

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。

Holaflyを見る詳細レビュー

Guam network coverage on GTA Wireless

HelloRoam runs its Guam plans on GTA Wireless, the island's main operator, which is why the recommendation holds right across Tumon Bay: GTA is the carrier with 4G on every hotel tower, at Micronesia Mall, and on the beach itself. DOCOMO Pacific also covers the island and is popular with Japanese travelers, but it carries no visitor eSIM plans in this catalogue. GTA Wireless reaches further for international visitors than DOCOMO Pacific does, reaching Tumon Bay, Hagåtña, the southern villages, and the main highway corridors, and it is the single network listed on all 6 Guam plans.

通信範囲の分析

GTA Wireless 4G LTE covers Tumon Bay's entire resort strip including the major hotel towers, shopping malls like Micronesia Mall and GPO, and the beach. Antonio B. Won Pat International Airport connects on arrival.

Hagåtña capital district has solid 4G. Route 1 along the west coast from Tumon to Merizo has consistent coverage. Two Lovers Point and Ritidian Point at the island's north tip both have 4G.

The Mariana diving sites on the west coast are accessible via 4G-covered shore areas.

開通方法

Scan your eSIM QR code before arriving at Antonio B. Won Pat International Airport (GUM). GTA Wireless registers the profile on arrival, so there is no SIM counter to queue at in the terminal.

Guam uses US-standard time zones and the US dollar. 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 450-550 MB per day at Tumon Bay resorts for shopping navigation, resort booking apps, social media, and Google Maps for the military history sites in the south. The Guam Shopping Festival and tax-free electronics stores on Tumon's main strip are easy to navigate on 4G. Diving bookings with local operators use minimal data.

A 7-day plan comfortably covers a standard Guam resort holiday. Download War in the Pacific National Historical Park guides offline for the southern tour route.

GuamのeSIMプラン料金

Guam eSIM plans start at $7.99 for 1 GB over 7 days on GTA Wireless. The 3 GB plan costs $12.71 and the 5 GB plan $19.95, both over 30 days. The 10 GB plan at $39.87 suits a photo-heavy resort holiday, and the 20 GB plan at $74.77 gives $3.74/GB across the 6.

A 2 GB per day plan costs $14.19, with a fair-use speed reduction once the daily allowance is spent. Verdict: HelloRoam prices Guam from $7.99 for 1 GB on GTA Wireless 4G, the one network an eSIM buyer reaches on the island.

All 6 Guam eSIM plans from $7.99 for 1 GB

Prices verified: 2026年5月22日

Guam eSIM questions answered

プロバイダーレビュー

Guam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。