A maze-like rail network, signs full of Japanese, restaurants booked through apps – travelling in Japan without data means it is easy to get lost. A Japan eSIM keeps you online from Tokyo and Osaka to Kyoto, with smooth Google Maps, Google Translate and train apps.
Why use an eSIM in Japan?
- Maps & trains: check Shinkansen, JR and subway routes in real time.
- Instant translation: scan menus and signs with Google Translate anytime.
- Keep your Vietnamese number for OTPs while the eSIM handles 4G/5G data.
- Online right at Narita/Haneda/Kansai, no need to hunt for a SIM counter.
Choose a Japan eSIM by need
Go365 offers many data sizes and validity periods for Japan eSIMs. How to choose:
- Light use (maps, chat, translation): ~1GB/day.
- Moderate use (plus photos/clips, social posts): 2GB/day or more.
- Heavy use (video, hotspot): a high-data / unlimited plan.
Prices and data change over time; see the latest on the plan page below.
Installing a Japan eSIM
- Buy a plan and receive the QR code by email.
- Scan the QR while still in Vietnam to install the eSIM profile.
- In Japan, turn on Data Roaming for the eSIM to get online.
See details: how to install & activate an eSIM · what is an eSIM.
Data-saving tips in Japan
- Download offline maps of Tokyo/Osaka/Kyoto first.
- Save tickets and itineraries in advance to check without data.
- Use hotel Wi-Fi to update apps and watch heavy video.
Buy a Japan eSIM
Choose the right plan for your trip, get the QR instantly and start your journey to the Land of the Rising Sun with a stable connection.