During your trip to Japan, there are many situations where you will use your smartphone, such as for map apps, transit guides, translation apps, social media, and checking hotels and flight tickets.
Therefore, it is important to prepare a means of communication in advance so that you can connect to the internet as soon as you arrive in Japan.
This article clearly explains the communication methods and setup procedures for using your smartphone during your trip to Japan, as well as recommended preparation methods.
If you want to know more about Japan eSIM, please also check the Complete Guide to Japan eSIM.
How to Use Your Smartphone in Japan
There are mainly four ways to use your smartphone in Japan.
- Japan eSIM
- SIM card
- Rental Wi-Fi
- International roaming
Since each method has different characteristics, it is important to choose based on the number of travel days, the number of users, and the type of smartphone.
1. Use Japan eSIM
The most recommended option is Japan eSIM.
With eSIM, there is no need to swap SIM cards; you can use it simply by scanning the QR code you receive after purchase.
If you set it up before your trip, you can use the internet by just turning on the eSIM line after arriving in Japan.
Advantages
- No need to exchange SIM cards
- No need to pick it up at the airport
- Can be set up before the trip
- No extra luggage
- Can start using it immediately upon arrival in Japan
You can check the plans for Japan at the Japan eSIM product page.
2. Use a SIM Card
This method involves inserting a physical SIM card into your smartphone.
It may also be usable on devices that do not support eSIM.
However, since you will need to exchange and store the SIM card, it may be a bit cumbersome for those traveling abroad for the first time.
3. Use Rental Wi-Fi
Rental Wi-Fi is convenient if you want to share communication among multiple people.
You can connect not only smartphones but also computers and tablets.
However, you will need to carry the Wi-Fi device, charge it, and return it.
4. Use International Roaming
This method allows you to use the services of your current mobile phone provider as is.
The setup is simple, but costs can be high, so be sure to check the usage conditions in advance.
Comparison of Communication Methods
| Item | eSIM | SIM Card | Rental Wi-Fi | Roaming |
|---|---|---|---|---|
| Setup | QR Code | SIM Exchange | Device Connection | Based on Contract |
| Pickup | Not Required | May Be Required | Required | Not Required |
| Portability | Not Required | Not Required | Wi-Fi Device Required | Not Required |
| Recommendation | ★★★★★ | ★★★★☆ | ★★★☆☆ | ★★☆☆☆ |
Things to Prepare Before Your Trip to Japan
Before your trip to Japan, make sure to check the following items.
- Check if your smartphone supports eSIM
- Check if SIM unlocking is required
- Choose a plan that matches the number of travel days
- Save the QR code
- Complete the setup before departure
By preparing in advance, you can start communication immediately upon arrival in Japan.
How to Set Up Japan eSIM
You can use Japan eSIM by following these steps.
- Purchase Japan eSIM
- Receive the QR code
- Add eSIM to your smartphone
- Turn on eSIM after arriving in Japan
- Change mobile data to eSIM
- Turn on data roaming if necessary
For detailed setup instructions, please check the eSIM Setup Guide.
Required Data Capacity for Your Trip to Japan
The required data capacity varies depending on how you use your smartphone during your trip.
- Maps & LINE focused: About 1GB/day
- SNS & photo posting: About 2GB/day
- Video viewing & tethering: More than 3GB/day
For more details, please refer to the Estimated Data Usage.
Frequently Asked Questions
Can I purchase eSIM after arriving in Japan?
You can purchase it, but you may need a Wi-Fi environment. It is recommended to buy it before your trip.
Does eSIM come with a phone number?
Most plans are for data communication only. If you want a plan with a phone number, please check the compatible products.
Is the setup difficult?
It only takes about 5 to 10 minutes to set up by scanning the QR code.
Conclusion
There are four methods to use your smartphone during your trip to Japan: eSIM, SIM card, rental Wi-Fi, and international roaming.
Due to its ease of setup, minimal luggage, and immediate availability upon arrival in Japan, Japan eSIM is recommended for many travelers.
Check the compatibility of your device and the required data capacity before your trip, and choose a plan that suits you.
