The Best eSIMs for traveling in Japan – A complete guide of 2024

When planning a trip to Japan, eSIM cards are incredibly convenient.

Unlike regular SIM cards, eSIMs cannot be lost, and cancellation procedures can be completed online. Furthermore, eSIM cards can be activated as quickly as the same day, eliminating concerns about loss or damage, making them highly recommended.

In this article, we recommend you several eSIM services and summarize their unique features.

Enjoy your trip to Japan with fast and convenient eSIMs!

Why are eSIMs recommended for traveling in Japan?

The main reason of recommending you eSIM is that free Wi-Fi is scarce in Japan. Even in urban areas, not many stores offer free Wi-Fi, and when they do, the networks are often congested, making connections difficult.

Another reason is that using translation devices is essential for smooth travel in Japan, and accessing these features requires network connectivity. Opting for an eSIM ensures you can use the network and translation tools without the hassle of setting up a traditional SIM card.

7 Recommended eSIMs for Use in Japan

1. Trifa

Trifa is an eSIM service available in over 200 countries. Simply select your destination and plan to start using the eSIM.

Activation takes as little as three minutes, making it an easy and user-friendly service. You can start and finish using the eSIM entirely on your own smartphone without renting additional devices. Despite being so straightforward, there are no initial or maintenance fees.

Moreover, the service starts counting usage days only when activated in Japan, not when the eSIM is installed. This service also allows users to easily track their data usage.

Basic Information:

• Usage Fee: ¥790 (3 days/1GB)
• Unlimited Data: Yes (¥2,970 for 3 days)
• Phone Number Option: No
• Payment Methods: Credit card/Apple Pay
• Additional Top-Up: Yes (¥790 for 1GB)

2. World eSIM

World eSIM is a reliable eSIM service also providing global Wi-Fi. It is available 24/7 and operates in over 180 countries, offering multilingual support.

World eSIM also allows tethering, so even in Japan’s limited Wi-Fi environment, you can connect your laptop or tablet to the internet.

The service offers a pay-as-you-use model, which helps avoid unnecessary expenses. This makes it a highly convenient and cost-effective service, especially recommended for families who wish to manage data collectively.

Basic Information:

• Usage Fee: ¥1,536 (5 days/1GB)
• Unlimited Data: Yes (¥5,140 for 5 days)
• Phone Number Option: No
• Payment Methods: Credit card/debit card
• Additional Top-Up: No

3. Klook

Klook is a travel platform that also offers eSIM services. The advantage of this service lies in its integration with Klook’s travel offerings, allowing you to handle reservations and local network setup within a single service.

Two packages are available: one provides a fixed daily data limit, ideal for consistent usage; the other allocates a total data volume for the entire trip, with the option for additional top-ups. Discounts through promotional campaigns add to its appeal.

Basic Information:

• Usage Fee: ¥590 (3 days)
• Unlimited Data: Yes (¥3,500 for 5 days)
• Phone Number Option: No
• Payment Methods: Credit card/debit card
• Additional Top-Up: Yes (varies by plan)

4. Airalo

Klook offers eSIM services as part of its travel business. The service is closely integrated with its travel platform, allowing users to handle bookings and local network setup in one seamless experience.

Klook offers two types of data packages based on usage.

The first plan provides a fixed daily data allowance, ideal for those with consistent daily usage. The second plan offers a total data allocation for the entire trip, with the option to purchase additional data.

Klook also runs promotional campaigns with significant discounts, adding to its appeal.

Basic Information:

• Usage Fee: $4.50 (7 days/1GB)
• Unlimited Data: No
• Phone Number Option: No
• Payment Methods: Credit card/debit card/PayPal/various e-wallets
• Additional Top-Up: Yes ($4.50 for 1GB)

5. KKday

KKday, a travel company, integrates eSIM services with its travel packages. Booking an eSIM through KKday can earn you discount coupons for specific tours.

The service is priced competitively, and early bookings can secure further discounts. If you finalize your travel plans early, this service is an excellent choice for savings.

Basic Information:

• Usage Fee: ¥105/day (500MB)
• Unlimited Data: No
• Phone Number Option: No
• Payment Methods: Credit card/debit card/mobile payment options
• Additional Top-Up: No

6. Ubigi

Ubigi is an eSIM service offering a wide range of prepaid data plans. It provides data plans not only for Japan but also for neighboring countries, with options such as one-time purchases, monthly or annual data packages, and even subscription-based monthly or yearly plans.

With Ubigi, you can eliminate reliance on free Wi-Fi during travels, long-term stays, or work trips. Additionally, the service supports 5G connectivity, so you won’t have to worry about slow loading times.

Ubigi is known for its clear and thorough explanations, making it an ideal choice for first-time eSIM users.

Basic Information:

• Usage Fee: ¥2,200 (7 days/10GB)
• Unlimited Data: Yes (¥4,400 for 7 days)
• Phone Number Option: No
• Payment Methods: Credit card/debit card/Google Pay
• Additional Top-Up: Yes

7. Japan Wireless eSIM

 

Specializing in Japan, Japan Wireless eSIM offers long-term discounts and 24/7 customer support via phone and email.

The longer the contract, the cheaper the daily cost, with monthly contracts as low as $0.50 per day. The service provides 24-hour customer support via both phone and email, ensuring you can get help anytime you face issues.

Using Japan’s largest network, NTT DoCoMo, the service ensures excellent coverage, even in mountainous regions. Additionally, the service offers a full refund guarantee in case of any problems, combining strong support and user-friendliness.

Basic Information:

• Usage Fee: $7.40 (7 days)
• Unlimited Data: Yes ($28 for 7 days)
• Phone Number Option: No
• Payment Methods: Credit card/debit card/Google Pay/Apple Pay
• Additional Top-Up: No

Benefits of Using eSIMs in Japan

1. Flexibility in Choosing Duration and Data Capacity

eSIMs offer greater flexibility compared to traditional SIM cards in terms of plan selection. Network usage varies greatly among individuals. Some people frequently stream videos and music while traveling, while others only use apps for calls or messaging.

For the former, even 3GB per day might not suffice, whereas the latter might find 500MB per day more than enough. eSIM providers offer plans that cater to both types of users, including long-term contracts for those staying for an extended period. This flexibility allows users to select plans tailored to their travel schedule and data usage.

2. Cost-Effectiveness

eSIMs are generally cheaper than traditional SIM cards. Since eSIMs eliminate the need for a physical card, costs associated with production, distribution, and inventory management are also removed.

Traditional SIM cards are priced higher to account for the risk of loss or damage, but eSIMs do not have these concerns. Therefore, eSIM providers can pass on these savings to their customers, making them a cost-effective option for travelers.

3. Reduction in Luggage and Hassle

Using an eSIM eliminates the need to carry a physical SIM card or deal with the hassle of swapping cards. A standard SIM card is very small (25mm × 15mm), and keeping it safe during your trip can be stressful.

With an eSIM, there’s no need to swap cards, and dual-SIM functionality allows easy switching between networks. The setup process takes only a few minutes without the need to remove phone covers or handle tiny SIM cards.

The Key Points for Choosing eSIMs for Japan

1. Choose a Phone Number Option If You Make Frequent Calls

When selecting an eSIM, consider how often you will make calls.

While most people rely on app-based calls, they consume significant amounts of data. If you expect to make frequent calls, it’s better to opt for an eSIM with a phone number.

Services like Rakuten Mobile, HIS Mobile, and LINEMO provide Japanese phone numbers, though their coverage areas may be limited.

2. Opt for Higher Data Capacity Than Usual

When estimating data requirements, plan for higher usage than usual. Travel involves frequent use of maps, translation tools, and increased data consumption due to being outside most of the time. Additionally, Japan has limited free Wi-Fi coverage, which adds to your reliance on mobile data.

3. Check Device Compatibility

Not all smartphones support eSIM functionality. iPhones starting from the XR series and most smartphones released after 2021 are typically compatible. To check if your device supports eSIM, navigate to the settings menu. On iPhones, go to “Cellular” settings and look for the “Add eSIM” option. For Android devices, check “Network & Internet” settings to see if there’s an option to add a SIM.

Steps to Set Up and Use an eSIM

1. Decide on Your eSIM Based on Travel Plans
First, finalize your travel schedule. Once your itinerary is set, compare eSIM services and choose one that suits your duration and expected data usage.

2. Install the eSIM
After selecting a plan, make the payment and proceed with eSIM installation. Most services provide a QR code for easy setup. Simply scan the QR code to install the eSIM. Some services also support manual installation using activation codes.

3. Activate the Connection Upon Arrival in Japan
Once you arrive in Japan, use airport Wi-Fi to activate the eSIM. Depending on your device’s operating system, this involves enabling the eSIM from the settings menu. Some services may require you to enable data roaming as well.

FAQs About Using eSIMs in Japan

Is Japan’s eSIM network reliable?

Yes, most eSIMs utilize major carriers, ensuring wide coverage. However, certain providers like Rakuten Mobile may have limited service areas.

Can I use the same eSIM on multiple devices?

No, an eSIM is tied to a single device. However, you can enable tethering to share the connection with other devices.

Where can I find free Wi-Fi in Japan?

Free Wi-Fi is often available in hotels, restaurants, and major retail stores. Use it to conserve your eSIM data.

Can I set up my eSIM before arriving in Japan?

Yes, but activating the eSIM might start the usage period, so be cautious.

How can I check if my device supports eSIM?

Look for the “Add eSIM” option in your device’s settings or consult the customer support of your eSIM provider.

eSIMs are highly recommended for travelers visiting Japan. They provide numerous advantages over traditional SIM cards, such as cost efficiency, convenience, and flexibility. However, ensure your device is compatible, and choose a plan that aligns with your travel needs for a hassle-free experience.