「デュアルSIM」戦略
プロのコツ： 物理的なSIMカードを取り外す必要はありません。GlobaleSIMですべてのデータ通信を行う間も、重要なSMSや2段階認証コードを受け取れるよう、SIMカードは携帯電話に入れたままにしておいてください。これが旅行中の最も安全な方法です。.
Vodafone Czech, O2 Czech Republic
High-speed prepaid eSIM for Czech Republic providing 4G/5G mobile data infrastructure. Designed for travelers, digital nomads, and business professionals requiring low-latency connectivity for GPS, video calls, and remote work.
Stop worrying about roaming fees or finding Wi-Fi. With GlobaleSIM, you get instant, reliable connectivity in Czech Republic from the moment you touch down, keeping you connected throughout your entire journey.
Includes a dedicated USA (+1) or UK (+44) mobile number. Requires a voice plan purchase to activate calling and SMS capabilities. Enables outbound calls to local and international destinations.
Supports inbound SMS. Please note that these are VoIP numbers; while they may work for many services, we cannot guarantee compatibility with all platforms, as many restrict the use of virtual/VoIP numbers for registration.
Enjoy a fixed-price cellular plan with no hidden activation fees, no contracts, and zero roaming charges — the perfect cost-effective solution for international data and calling.
Access real-time assistance from our human support team anytime, anywhere. Get expert help with installation, troubleshooting, or plan management via our app or web portal.
Works with all eSIM-enabled, carrier-unlocked smartphones including iPhone, Samsung Galaxy, and Google Pixel.
List of compatible devices:
* 以下のデバイスはeSIM技術をサポートしていません：
– 日本、中国、香港、またはマカオで購入されたiPhone
* 以下のデバイスはeSIM技術をサポートしていません：
– すべてのSamsung S20 FE / S21 FEモデル
– 米国で購入されたSamsung S20 / S21 / Galaxy Z Flip 5G
– 米国または香港で購入した Samsung Note 20 Ultra / Galaxy Z Fold 2
* 以下のデバイスはサポートされていません：
– オーストラリア、イエメン、または日本からのPixel 3
– Verizonキャリアで南アジアで購入したPixel 3a
* Huawei P40 Pro+ はこの技術をサポートしていません。.
その他Prague draws the crowds, but the Czech Republic is also Brno’s cafe culture, the fairy-tale streets of Cesky Krumlov, the spa colonnades of Karlovy Vary and the Bohemian countryside in between. Getting there and around means transit apps, maps and mobile tickets, and a home roaming plan can make each of those expensive. A Czech Republic eSIM from GlobaleSIM is bought online, installed over Wi-Fi before you fly and connects automatically when you land at Vaclav Havel airport, with your own number still active on your primary SIM.
The eSIM Czech Republic plan connects to two partner operators, Vodafone Czech and O2 Czech Republic, so your phone can use whichever network has the better signal where you are. Prague, Brno, Ostrava, Plzen and Olomouc are strongly covered, along with the motorways and main rail lines that connect them. Coverage reaches most towns and villages; in the forested hills along the borders and on the mountain trails of the Krkonose, expect the signal to come and go, so keep offline maps ready for hikes.
Data-only plans do not include voice. Add +100, +200 or +300 minutes and your Czech Republic eSIM includes a dedicated international phone number, US +1 or UK +44, for calls and SMS. It comes in handy for booking a restaurant in Prague’s Old Town, calling a pension in Cesky Krumlov, or receiving the verification texts your bank sends when you pay abroad. Without the add-on, WhatsApp and FaceTime work over data on your usual number.
This prepaid data plan starts from $4 for 1GB and is offered in 2GB, 3GB, 5GB, 10GB, 15GB and 20GB. Validity is tied to size: 1GB for 7 days, 2GB for 10 days, 3GB for 14 days, 5GB for 21 days, and 10GB, 15GB and 20GB for 30 days. A three-day city break in Prague with maps, transit and photos fits in 1GB to 2GB; a ten-day tour through Bohemia and Moravia is comfortable on 3GB to 5GB; a month of study or remote work, with a laptop on the hotspot, calls for 10GB or more. Validity begins only when your device first connects to a supported network in the Czech Republic, so installing early is free.
Prague’s trams and metro are the best way around the city, and the transit app lets you buy tickets and check connections on the go. Ride-hailing is widely used and avoids fare surprises with street taxis. Card and phone payments are accepted almost everywhere, though a few pubs and market stalls still prefer cash. Intercity trains and buses are comfortable and affordable, and booking on the phone secures a seat. Cafe Wi-Fi is plentiful but shared, so the eSIM Czech Republic stays your main line. The plan works only inside the Czech Republic; a hop to Vienna, Dresden or Bratislava needs a plan for that country.
Two partner networks, a transparent price, instant delivery and the option of a real phone number make the eSIM Czech Republic prepaid data plan from GlobaleSIM the simple way to stay online from Prague to the countryside. Works with carrier-unlocked eSIM devices, including iPhone 11 and later, Samsung Galaxy S20 and later, and Google Pixel.
Still have questions? Check our Global Connectivity Guide for expert tips on 5G, device compatibility, and travel hacks.
Traveling to Czech Republic shouldn't be complicated. Whether you're navigating urban centers or exploring rural areas, our 5G-ready eSIM ensures you stay connected from the moment you land. We simplify your international connectivity so you can focus on the experience, not the roaming bills.
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Great service!
Great services !! Thank you
物理的なSIMカードは不要です。数日ではなく、わずか数分で接続できます。.
旅行先を選択し、ご自身のニーズにぴったりのデータプランをお選びください
ご購入後すぐに、メールでeSIMのQRコードを受け取れます
そして接続する
| GlobaleSIM デジタルeSIM | 国際ローミング 従来の通信事業者 | 物理SIM 地元の店舗での購入 | |
|---|---|---|---|
| 即時有効化 | ✓ | ✕ | ✕ |
| 隠れた手数料はありません | ✓ | ✕ | ✓ |
| 電話番号はそのままに | ✓ | ✓ | ✕ |
| 5G高速インターネット | ✓ | ✓ | ✓ |
| 手頃な価格 | ✓ | ✕ | ✓ |
なぜ物理SIMではなくデジタルSIMを選ぶべきなのでしょうか？GlobalESIMなら、SIMカードの交換が不要で、メインのSIMカードも保護され、即座に利用開始が可能です。これは、2026年の国際旅行における最新の標準となっています。.
プロのコツ： 物理的なSIMカードを取り外す必要はありません。GlobaleSIMですべてのデータ通信を行う間も、重要なSMSや2段階認証コードを受け取れるよう、SIMカードは携帯電話に入れたままにしておいてください。これが旅行中の最も安全な方法です。.
最適化のコツ： データ通信量を長持ちさせるには、必要のないアプリの「バックグラウンドAppリフレッシュ」を無効にし、モバイルデータ通信利用中は写真の自動バックアップをオフにしてください。これでデータ通信プランの残量が驚くほど長持ちします！
旅行者の裏ワザ： 電波の届かない地域や国立公園に向かう前に、Wi-Fi環境下でGoogleマップの目的地をダウンロードしておきましょう。山の中で「圏外」になっても、GPSは問題なく機能します。.
クイックスタート： 今すぐeSIMを購入しましょう。ただし、アクティベーションは現地に到着してから行ってください。プランの有効期間は、目的地で現地のネットワークに接続した時点から開始されます。.
高速な5G接続で、お気に入りのアプリを最高のパフォーマンスで活用しましょう。.
GlobaleSIMなら、世界中のあらゆる目的地で、安定した通信環境を自由に楽しむことができます。.
