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Without mobile internet, travel can quickly become unnecessarily complicated. You need it for navigation, translations, restaurant searches, ticket purchases, and often even for check-in or digital reservations.
Especially outside your home country, it's important to check your data volume before departure. Many European contracts only include a limited number of days abroad, and in Japan, free data volume is usually not included at all.
Why internet is so important when traveling
Those who are online while traveling travel more relaxed and flexibly. Google Maps, train and bus tickets, opening hours, translations, and spontaneous restaurant tips often only work well in daily life with a stable internet connection.
Especially in Japan, much information for travelers is digital. Without mobile data, you have to rely on unreliable Wi-Fi or search extensively on-site, which costs time and nerves.
Roaming is often expensive
Many travelers assume that their existing contract will suffice abroad. This is sometimes partially true within Europe, but usually only with limited data volume.
As soon as you travel outside this zone, roaming can quickly become expensive. Japan is not included in most European tariffs, so even normal surfing or map usage can incur high costs.
Prepare SIM card or eSIM in advance
The best solution is to organize your mobile internet for the trip at home. This way, you can get online immediately after landing and don't have to look for a solution at the airport.
Whether a SIM card or eSIM is more sensible depends on your smartphone and your travel habits. For many travelers, an eSIM is the most convenient because it can be installed directly and no physical card exchange is necessary.
Data packages for travel as a safe alternative
Instead of risking your normal roaming, you can opt for temporary data packages for travel. These are often much more predictable and cheaper than traditional international roaming.
If you primarily use your phone for navigation, messaging, and a few photos, 500 MB to 1 GB per week is often sufficient. Those who stream a lot or make frequent video calls should plan accordingly.
Our recommendation for Japan
For trips to Japan, we recommend a pre-configured eSIM solution. In our case, we had very good experiences with Saily*, because the setup is easy and the tariffs are well suited for travel.
Currently, you can get 1 GB from 3 Euros, and with the code DRIVEDOCS10 you receive a 10% discount on all Saily tariffs. For many trips to Japan, this is a practical and stress-free solution.
Definitely check before departure
Before you fly, you should definitely test whether your smartphone can use mobile internet abroad. Many contracts are only intended for Europe, and Japan is highly likely not covered.
This is especially true if you rely on your phone for navigation, translation, or bookings. Checking this beforehand saves you trouble, wasted time, and unnecessary additional costs on site.
Check app settings
An important professional tip is to check your app settings before traveling. Many apps consume data in the background, even if you are not actively using them.
Therefore, disable mobile data usage in the background for all non-essential apps. This way, your data volume remains available longer and you avoid unpleasant surprises.
Conclusion: Preparation saves money and stress
Mobile internet is now part of every good travel preparation. Especially in Japan, a separate solution is almost always more sensible than expensive roaming.
If you decide on an eSIM or data package in good time, you will travel more relaxed and be online immediately after landing. Our personal recommendation remains: check before departure, control data consumption, and be safely on the go with a solution like Saily.
Secure mobile internet for your trip now
If you are looking for an easy solution for Japan or other trips, then set up your data connection before departure. This way, you will be online as soon as you arrive.
View Saily here* and receive 10% discount on all tariffs with the code "DRIVEDOCS10".
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