Traveling through Japan often means juggling language barriers, busy schedules, and the challenge of staying connected. Fortunately, this 5G Japan eSIM from Earth Esim offers a straightforward, budget-friendly way to ensure you’re always online, whether you’re exploring Tokyo or wandering Kyoto’s temples. With prices starting at just $3.38 per person, it’s an option worth considering if you want hassle-free mobile connectivity.
We like that this eSIM provides very reliable coverage, with plans offering up to 50GB or unlimited data. There’s no need to worry about hefty roaming charges, which can unexpectedly bump up your bill. Plus, the instant activation process simplifies setup, letting you hit the ground running. That said, if your device isn’t unlocked or compatible with eSIMs, this might not be suitable. Ideal for tech-savvy travelers who want to avoid SIM swaps or international roaming fees, this service suits both short trips and longer stays.
Good To Know

- Affordable connectivity starting at just $3.38 per person for various plans.
- Zero roaming fees, so you won’t be surprised by extra charges.
- Flexible options from 1 to 30 days with data allowances up to 50GB or unlimited.
- Nationwide coverage reaching 99.9% of Japan’s population with fast 5G and 4G LTE networks.
- Simple setup and electronic delivery within 24 hours, no physical SIMs required.
- Monitor your data usage online and enjoy full-speed browsing even after daily caps.
👉 See our pick of the 25 Best Guided Tours In Tokyo
Why Choose the 5G Japan eSIM?

Traveling in Japan means experiencing a mix of ultra-modern cities and peaceful temples, and being connected enhances every step of that journey. The Earth Esim eSIM is designed to give you reliable, high-speed internet access across the country without any of the usual complications of international roaming.
The biggest advantage is the pricing, starting at $3.38 per person, which makes it an incredibly budget-friendly option, especially compared to roaming charges from local carriers or buying a physical SIM upon arrival. For a trip of up to 30 days, this plan provides plenty of data—up to 50GB or unlimited, depending on your preference—ideal for travelers who rely on maps, translation apps, or streaming music and videos while on the go.
You can also read our reviews of more tours and experiences in Tokyo.
What Does the eSIM Offer?

The core appeal of this eSIM is its combination of convenience and coverage. Once activated, you’ll have access to Japan-wide data coverage, powered by trusted networks like KDDI 5G and SoftBank. This means almost the entire country is within reach for high-speed browsing and streaming.
The plan allows you to keep your regular SIM for calls and SMS, using the eSIM solely for data. This is a big plus for travelers who prefer to retain their home number or use local numbers for business or personal calls. However, it’s important to note that the plans do not include a Japanese phone number—only data.
How to Set Up Your eSIM

Setting up the Earth Esim is a breeze. Your eSIM will be emailed to you within 24 hours of purchase, ready to activate before or upon arrival in Japan. No need for complicated ID registration—just follow the instructions provided in English. Activation requires an unlocked device with eSIM compatibility, which you can verify by dialing #06# to check for an EID number.
The process involves scanning a QR code to install the plan on your phone. Once installed, your plan starts immediately, and you can monitor your data usage online, offering peace of mind during your trip. Remember, the eSIM is valid for 1 to 30 days after activation, so plan accordingly based on your stay.
Coverage and Data Speeds

Travelers have praised the coverage quality, especially in urban centers like Tokyo, where most reviews mention consistent high-speed internet. The infrastructure is supported by KDDI 5G and Softbank 5G networks, delivering full-speed data until you hit a reasonable daily limit, after which browsing continues at a reduced speed of 1 Mbps.
Unlimited plans include a hotspot allowance—6GB for 7 days, 9GB for 10 days, 14GB for 15 days, and 30GB for 31 days—perfect for sharing internet with friends or using multiple devices. This makes the eSIM versatile for groups or tech-heavy travelers who want multiple screens connected.
Who Will Benefit Most?

This eSIM is an excellent choice for budget-conscious travelers who want reliable, high-speed internet without the hassle of physical SIM cards or roaming fees. It’s particularly suited for those planning longer stays or needing large data allowances. If you’re into streaming, navigating with online maps, or using travel apps, this plan will keep you connected effortlessly.
It also works well for business travelers who require consistent connectivity or digital nomads exploring Japan for weeks at a time. Keep in mind, if you desire a Japanese phone number, you’ll need to explore other options, as this plan offers data-only service.
Practical Considerations

While the price is attractive, be sure to check your device’s compatibility—only unlocked phones with eSIM capability will work. The activation process is straightforward, but some travelers have mentioned that monitoring data usage online helps prevent unexpected slowdowns, especially when on unlimited plans with hotspot allowances.
Also note that refunds are not available if you cancel or change plans, so make sure your dates and data needs are locked in before purchasing. Most travelers find the coverage and speed to be more than adequate for typical sightseeing and travel activities.
Final Thoughts

For those visiting Japan, staying connected is less of a hassle with this cost-effective eSIM plan. Its wide coverage, easy setup, and flexible data options make it an appealing choice for a country where staying online can significantly enhance your experience.
The hotspot feature and high-speed 5G connectivity mean you’ll be able to share moments with friends or stream your favorite shows without interruption. Plus, at such an accessible price point, it’s a practical investment for travelers wanting peace of mind without breaking the bank.
If you’re after reliable, nationwide coverage with no roaming fees, and plan to spend up to a month in Japan, this eSIM could be your best travel companion.
FAQs

Is this eSIM compatible with all phones?
You’ll need to ensure your device is unlocked and eSIM-compatible. Check for an EID number by dialing #06# or in your phone settings. Devices purchased directly from certain carriers may restrict eSIM use.
Does the eSIM provide a Japanese phone number?
No, this plan is data-only, so it doesn’t include a local Japanese phone number. It’s perfect for data access, navigation, and messaging apps.
Can I use this eSIM for calls and SMS?
You can keep your existing SIM card for calls and SMS, using the eSIM solely for data. This setup is common and efficient for travelers.
How fast is the internet on this plan?
You’ll enjoy full-speed data on 5G and 4G LTE networks, with no throttling until your daily data cap—after which speeds reduce to about 1 Mbps.
What is the coverage area?
Coverage reaches 99.9% of the Japanese population across the country, ensuring reliable internet in urban and many rural areas.
How do I activate the eSIM?
Once you receive the electronic QR code, scan it with your device and follow the instructions. The plan starts immediately after activation.
Can I extend my plan beyond 30 days?
The plans are designed for 1 to 30 days. For longer stays, you might need to purchase additional plans or look for other options, as the current plans are limited to a maximum of 30 days.
Traveling in Japan gets easier with this affordable, reliable eSIM—a smart way to stay connected, navigate with confidence, and share your journey.



























