Staying connected while traveling in Japan is essential. While some travelers rely on free WiFi, the reality is that public WiFi in Japan is often unreliable, slow, and requires annoying login procedures. Many cafes and restaurants offer WiFi, but connections can be inconsistent, and finding a stable network when you need it most can be frustrating. If you plan to use Google Maps for navigation, book rides through an app, or stay in touch with friends and family, having a SIM card with mobile data is the best solution.
Not all phones support eSIM, making physical SIM cards the go-to option for many travelers. However, buying a SIM card in Osaka can be expensive, and not all purchase options offer the best value. That’s why it’s important to plan ahead and choose the smartest way to stay connected.
Buying a SIM card at Kansai International Airport is convenient because you can get one as soon as you arrive. However, airport SIM cards are usually the most expensive option. Prices are often 30-50% higher than what you’d pay if you pre-ordered online. In addition, availability may be limited, and certain data plans could sell out quickly, especially during peak travel seasons. Long queues are common at airport SIM counters, meaning you might waste valuable time waiting in line after a long flight.
Another issue is that some airport SIM vendors have limited operating hours. If you arrive on a late-night flight, the counter may be closed, leaving you without internet access until you can find a store in the city.
You can also buy a SIM card in Osaka at convenience stores like Lawson and 7-Eleven or electronics retailers like Bic Camera and Yodobashi Camera. Prices at these locations tend to be slightly lower than at the airport, but there are still several downsides.
First, selection is limited, and many of these stores only sell SIM cards with small data allowances. If you need a large data plan for a longer trip, your options may be restricted. Second, some SIM cards require manual APN settings. If you're unfamiliar with setting up mobile networks on your phone, this can be confusing and time-consuming.
By pre-ordering online, you can get a SIM card for 30-50% less than what you'd pay at the airport or local stores. CDJapan Rental offers flexible plans, including 30GB, 50GB, 135GB, and even unlimited data, so you get more for your money.
They offer the following Japan SIM card plans:
Plan | Suitable For | Price |
---|---|---|
30GB/8 days | If you're visiting Japan for a short trip, this SIM card is perfect for you. 30GB of data is more than enough for 8 days of hassle-free use. | 3,200 JPY |
50GB/16 days | Ideal for around two weeks of travel, ensuring enough data for daily use and emergencies. | 3,900 JPY |
50GB/31 days | Suitable for longer trips and travelers with higher data needs. | 4,900 JPY |
Unlimited data SIM/17 days | Suitable for short-term high-intensity use, such as frequent video calls and HD video streaming. | 5,000 JPY |
Unlimited data SIM/32 days | If you are staying in Japan for a longer time or have high data needs (such as frequent uploading of large files or long hours of online work), this plan is perfect for you. | 6,000 JPY |
To see all the plans of Japan SIMs:
With CDJapan Rental, you can pick up your SIM card directly at Kansai International Airport, skipping the long lines at SIM counters. For travelers arriving at other airports (Narita, Haneda, Hokkaido, etc.), collection is available at the airport post office, making the process seamless and efficient.
Unlike some SIM cards that require manual APN configuration, CDJapan Rental’s SIM cards are plug-and-play. Simply insert the card, and you’re ready to go. This is a huge advantage for travelers who prefer a smooth and quick setup.
Save money and avoid the hassle—pre-order now!
Get your CDJapan Rental SIM Card and pick it up at Kansai Airport!
The latest models of smartphones support eSIM, and many people may be looking for a suitable eSIM to use in Japan.
Here, we recommend the eSIM from CDJapan Rental, which uses a local Japanese network and provides a stable internet experience.
This eSIM uses the network of docomo, Japan's largest telecom operator, offering wider coverage, faster and smoother communication, and more stable internet access.
Since CDJapan Rental is a local Japanese company, travelers can purchase the eSIM at a local Japanese discounted price.
Due to the characteristics of eSIM, travelers can purchase it anytime and anywhere, and it can be used immediately after purchase without waiting for delivery.
Click here to view all eSIM plans.
Whether you're traveling short-term or staying long-term, our "2025 Ultimate Guide to Portable Pocket WiFi, eSIM, and SIM Cards for Japan" will help you find the best internet solution for your needs!
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