Mobile internet in Prague: a visitor’s guide
Prague is a city you walk, with the phone in your hand: the map in the old town, the tram times, the ticket, the photos. Here is what changes when your data comes from abroad, and where the city eats more of it than you expect.
概要
- チェコでeSIMは使えますか？
- はい。O2, Vodafone（5G）に接続します。
- 料金
- €5.49から（3 GB・15日間）
- 1週間の旅行なら
- 5 GB・30日間：€7.29
- EUの携帯プランは使えますか？
- はい。チェコはEUローミングの対象国なので、EU加盟国のプランなら、通常は事業者のフェアユース上限の範囲内で追加料金なしで使えます。EU外のプランの場合は、国際ローミング料金がかかります。
- プランはいつから始まりますか？
- チェコでスマホが初めてネットワークに接続した時点からです。QRコードは数分でメールに届きます。
Roaming here, in three lines
- EU and EEA plans: roam like at home applies, within the fair-use limit.
- UK plans: it depends on your operator since Brexit.
- Plans from outside Europe: usually roaming charges or a daily pass.
The rules in full, country by country, are in our guide to Internet in Czechia.
チェコ向けeSIM
チェコに着いたその瞬間から、スマホでデータ通信。アカウント、アプリ、店舗は不要です。
データ容量を選ぶ
1〜2週間、地図、メッセージ、たまに動画を見る方に。
今はお支払い不要です · 改善が完了したら30%オフをメールでご案内します
お使いの機種で使えますか？
iPhoneの場合：「設定」→「一般」→「情報」を開き、EIDまでスクロールします。EIDがあればeSIMに対応しています。iPhone XS（2018年）以降はすべて対応しています。
Androidの場合：「設定」→「デバイス情報」→「ステータス」でEIDを探します。EIDがあればeSIMに対応しています。Galaxy S20、Pixel 3以降の多くの機種が対応しています。
SIMロック解除済みであることも必要です。端末を一括購入した場合や契約期間が終わっている場合は、ほぼ確実に解除されています。
お使いの機種がわからない場合は、お支払い前にお問い合わせください。担当者が24時間以内にお答えします。
ご利用の流れ
- 1選んで支払うカード、Apple Pay、Google Pay。アカウント不要。
- 2自宅で設定QRがメールで届きます。Wi‑Fi環境で1分でスキャン。
- 3到着したら接続eSIMのデータローミングをオンにすれば、ネットにつながります。
From the airport to the centre
Prague airport has no train or metro of its own: the usual way in is a bus to a metro station and then the metro. That is two decisions to make with a rucksack on, and both are easier with data: which bus, where to change, and how the ticket works for the whole journey. The apps that sell and show that ticket need a connection.
Airport Wi-Fi tends to ask for a registration form or give you a short slot, and it ends at the door. An eSIM installed at home over Wi-Fi connects by itself when you land; if nothing shows up, our eSIM says no service guide lists the four things to check.
Metro tunnels, narrow streets and courtyards
Above ground the coverage is good. Underground it depends on the line and the station, so a message or a map can sit waiting between stops, and on trams the signal comes and goes as you pass under bridges and through cuttings.
In the old town and in Malá Strana the lanes are narrow, the buildings are tall and half the shortcuts run through courtyards and passages. The GPS dot drifts there, turns you the wrong way and sometimes puts you on the next street. That is the signal bouncing off stone, not your plan. Download the offline map before you travel, while you are on Wi-Fi.
What eats your data here
- The map, open all day and checked every couple of minutes in a maze of small streets.
- Transport apps: tram and metro times, plus buying or showing the ticket on the phone.
- Day trips by train, where the timetable, the platform and the last train home are all looked up on the phone.
- Timed entries and queues: the QR code has to load at the door, often in a thick-walled doorway.
- Photos and video, plus the cloud backup running in the background unless you pause it.
Screenshot tickets and bookings as soon as you have them. An image in the gallery opens with no signal; a web page does not.
How much data
It depends on the days, on whether you watch video and on whether you share with a laptop. How much data do I need turns that into a number from what you actually do.
Prices
Data eSIMs for Czechia: 3 GB for €5.49, 5 GB for €7.29, 10 GB for €12.49 and 20 GB for €19.99. It is data only, so your own line keeps your number and WhatsApp. Installing it does not start the plan: it starts when your phone connects in Czechia, so you can buy it weeks ahead. Hotspot is allowed and we do not cap the speed.
旅行はまだ先ですか？
チェコへはまだ先ですか？出発前にお知らせします
出発日を教えてください。1週間前と前日に、自宅のWi‑FiでeSIMを設定する手順をメールでお送りします。それ以外のメールは送りません。
メールはこの旅行に関する内容のみで、すべてのメールからワンクリックで配信停止できます。 プライバシーポリシー
Is there mobile signal on the Prague metro?
In the tunnels it depends on the line and the station, so expect gaps between stops. Above ground coverage across the city is good.
Do I need korunas to buy the eSIM?
No. You buy it online before you travel, at the price shown at checkout, so nothing depends on changing money when you land. Czechia uses the koruna for everything else.
Why does my map wander in the old town?
Narrow lanes, tall buildings and courtyards bounce the GPS signal, so your position drifts. It is not the data plan. An offline map downloaded beforehand keeps the streets and the search working.
Does a Czechia eSIM give me a Czech number?
No, it is data only. Your usual line keeps your number, your SMS and WhatsApp.
出発前にeSIMをご用意ください。QRは数分でメールに届き、プランは渡航先で接続したときに開始します。
See eSIMs for Czechia