日本eSIMは空港で買える?旅行前にオンライン購入するメリット

Can I buy a Japanese eSIM at the airport? Benefits of buying online before traveling.

目次

    When preparing for a trip to Japan, many people may wonder, "Can I buy a Japan eSIM at the airport?" "Is it better to buy it online before the trip?" "Will I have enough time to purchase it after I arrive?"

    To conclude, major airports in Japan have counters that sell communication services, but not all airports or stores handle eSIMs. Additionally, there may be cases where you cannot purchase one due to business hours or stock availability.

    On the other hand, if you purchase online, you can receive a QR code before your trip and complete the setup before departure, allowing you to use the internet immediately upon arrival in Japan.

    This article will clearly explain whether you can purchase a Japan eSIM at the airport, the differences between online and airport purchases, the benefits of buying before your trip, and important points to consider when purchasing.

    An image of preparing by purchasing a Japan eSIM online before the trip


    Can I buy a Japan eSIM at the airport?

    Major airports in Japan have counters and vending machines that sell communication services for travelers.

    However, the products available vary by store, and some may only handle physical SIM cards or rental Wi-Fi.

    Therefore, it is not guaranteed that you can purchase a Japan eSIM just by going to the airport.

    Especially for late-night or early-morning flights, there may be cases where stores are not open.

    If you want to ensure that you have a means of communication prepared before your trip, online purchase is recommended.

    You can check the currently available plans from Japan eSIM products and pricing plans.

    Differences Between Airport Purchase and Online Purchase

    Comparison Item Airport Purchase Online Purchase
    Purchase Timing After arriving in Japan Before or during the trip
    Business Hours Varies by store Available 24/7
    Receiving Store or counter Receive QR code via email
    Waiting Time May have to wait during busy times No waiting required
    Number of Plans May be limited Easy to compare
    Use Immediately After Arrival After purchase and setup Can use immediately if pre-set

    For those who want to make effective use of their time during the trip, online purchase is more convenient.

    Benefits of Purchasing Online Before the Trip

    ① You can use the internet immediately after arriving in Japan

    With online purchase, you can scan the QR code before departure and just turn on the connection after arriving in Japan to start using it.

    You won't need to search for communication services at the airport, allowing you to use Google Maps and transit guides right after you arrive.

    ② No need to wait in line at the airport

    During tourist seasons or major holidays, communication counters can get crowded.

    With online purchase, there is no waiting time for buying or receiving.

    ③ You can compare many plans

    Online, you can choose a plan that suits you while comparing usage days, data capacity, and prices.

    For plan comparisons, please see Japan eSIM pricing and plan comparisons.

    ④ You receive the QR code immediately

    For many products, the QR code is sent via email immediately after purchase.

    This means you don't have to wait for delivery, making it easy to prepare even just before departure.

    ⑤ You don't have to worry about airport business hours

    Even if you are using a late-night or early-morning flight, you can purchase online without worrying about the time.

    Benefits of purchasing a Japan eSIM online before the trip


    Benefits of Purchasing at the Airport

    • You may be able to consult with staff
    • You can choose the necessary communication means after arrival
    • You can compare with physical SIMs and rental Wi-Fi

    For those who are unsure about smartphone settings, being able to consult in person can be a benefit.

    Disadvantages of Airport Purchase

    • There may be no eSIM available
    • You cannot purchase outside of business hours
    • There may be waiting times during busy periods
    • The number of plans may be limited
    • You cannot use communication until purchase and setup are complete

    If you want to use maps or transportation information immediately upon arrival, pre-purchase is more reassuring.

    Things to Prepare Before Your Trip

    1. Check if your device is eSIM compatible
    2. Check if SIM unlocking is done
    3. Choose a plan that matches your travel duration
    4. Receive the QR code
    5. Install the eSIM using Wi-Fi
    6. Turn on the connection after arriving in Japan

    You can check compatible devices from the list of eSIM compatible devices.

    Is it okay to set it up before the trip?

    For many Japan eSIMs, it is recommended to install them before the trip and activate the connection after arriving in Japan.

    However, for some products, the usage period may start from the time of installation, so please check the instructions after purchase.

    For detailed setup instructions, please see the eSIM setup guide.

    Settings After Arriving in Japan

    After arriving in Japan, perform the following settings.

    1. Turn on the Japan eSIM
    2. Change mobile data to the Japan eSIM
    3. Turn on data roaming
    4. If necessary, set the APN
    5. Wait a few minutes and check the connection

    If you cannot connect, please check how to troubleshoot when the Japan eSIM is not connecting.

    How to activate the Japan eSIM after arriving in Japan


    Who Should Consider Online Purchase?

    • Those who want to communicate immediately after arriving in Japan
    • Those who want to save time at the airport
    • Those who want to compare prices and capacities
    • Those using late-night or early-morning flights
    • Those who want to prepare before the trip

    Who is Suitable for Airport Purchase?

    • Those who want to consult in person
    • Those who are not confident in their setup skills
    • Those who want to compare physical SIMs and Wi-Fi
    • Those who want to decide on a communication method after arrival

    Frequently Asked Questions

    Can I definitely buy an eSIM at Japanese airports?

    No. The products available vary by airport and store.

    Can I use it if I set it up before the trip?

    For many products, it is possible. However, the conditions for starting use vary by product.

    How many days before the trip is it recommended to purchase online?

    It is advisable to purchase a few days before the trip and check the setup before departure for peace of mind.

    Can I use Wi-Fi at the airport to make a purchase?

    You may be able to use the airport's free Wi-Fi, but the connection may be unstable depending on the situation.

    Is online purchase safe?

    Make sure to check the seller, support details, and terms of use before purchasing.

    For other questions, please see frequently asked questions about eSIM.

    Checklist for purchasing a Japan eSIM before the trip


    Conclusion

    You can sometimes purchase a Japan eSIM at the airport, but it may not be available depending on the store, business hours, or stock.

    By purchasing online before your trip, you can compare prices and choose a plan that suits you, allowing you to use the internet immediately upon arrival in Japan.

    To enjoy your trip to Japan more comfortably, it is recommended to prepare your Japan eSIM before departure.

    For more detailed information about Japan eSIM, please see the complete guide to Japan eSIM.

    Related Pages

    Back to blog