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The Best Unlimited 5G
Prepaid SIM card for Japan
Our data-only SIM cards give you internet access across Japan — no phone number included. Just insert the SIM into your device and enjoy fast, reliable connectivity without roaming fees. Pick up at the airport, a local post office, or have it delivered to your hotel.
from
3,500
JPY
(3,850 JPY, tax incl.)
Travel SIM Card UNLIMITED Data Plans
Select a Start and End date to view pricing options.
Usage Dates
Available Sakura Mobile plans:
Currency:
-
3GB/day data SIM card
4 days
JPY- Super fast speed 5G (docomo)
- High speed: up to 3GB/day*
- Hotspot: available
- No phone number, data only
-
RECOMMENDEDUnlimited data SIM card
4 days
JPY
- Super fast speed 5G (au)
- High speed: unlimited
- Hotspot: available (up to 3 GB)
- No phone number, data only
-
3GB/day data SIM card
7 days
JPY
- Super fast speed 5G (docomo)
- High speed: up to 3GB/day*
- Hotspot: available
- No phone number, data only
-
RECOMMENDEDUnlimited data SIM card
7 days
JPY
- Super fast speed 5G (au)
- High speed: unlimited
- Hotspot: available (up to 6 GB)
- No phone number, data only
-
3GB/day data SIM card
10 days
JPY
- Super fast speed 5G (docomo)
- High speed: up to 3GB/day*
- Hotspot: available
- No phone number, data only
-
RECOMMENDEDUnlimited data SIM card
10 days
JPY
- Super fast speed 5G (au)
- High speed: unlimited
- Hotspot: available (up to 9 GB)
- No phone number, data only
-
3GB/day data SIM card
12 days
JPY
- Super fast speed 5G (docomo)
- High speed: up to 3GB/day*
- Hotspot: available
- No phone number, data only
-
RECOMMENDEDUnlimited data SIM card
12 days
JPY
- Super fast speed 5G (au)
- High speed: unlimited
- Hotspot: available (up to 11 GB)
- No phone number, data only
-
3GB/day data SIM card
15 days
JPY
- Super fast speed 5G (docomo)
- High speed: up to 3GB/day*
- Hotspot: available
- No phone number, data only
-
RECOMMENDEDUnlimited data SIM card
15 days
JPY
- Super fast speed 5G (au)
- High speed: unlimited
- Hotspot: available (up to 15 GB)
- No phone number, data only
-
3GB/day data SIM card
21 days
JPY
- Super fast speed 5G (docomo)
- High speed: up to 3GB/day*
- Hotspot: available
- No phone number, data only
-
RECOMMENDEDUnlimited data SIM card
21 days
JPY
- Super fast speed 5G (au)
- High speed: unlimited
- Hotspot: available (up to 20 GB)
- No phone number, data only
-
3GB/day data SIM card
31 days
JPY
- Super fast speed 5G (docomo)
- High speed: up to 3GB/day*
- Hotspot: available
- No phone number, data only
-
RECOMMENDEDUnlimited data SIM card
31 days
JPY
- Super fast speed 5G (au)
- High speed: unlimited
- Hotspot: available (up to 30 GB)
- No phone number, data only
-
3GB/day data SIM card
46 days
JPY1,000 JPY OFF!
- Super fast speed 5G (docomo)
- High speed: up to 3GB/day*
- Hotspot: available
- No phone number, data only
- 2 SIM cards included (31+15 days)
-
RECOMMENDEDUnlimited data SIM card
46 days
JPY2,000 JPY OFF!
- Super fast speed 5G (au)
- High speed: unlimited
- Hotspot: available (up to 30+15 GB)
- No phone number, data only
- 2 SIM cards included (31+15 days)
-
3GB/day data SIM card
62 days
JPY2,000 JPY OFF!
- Super fast speed 5G (docomo)
- High speed: up to 3GB/day*
- Hotspot: available
- No phone number, data only
- 2 SIM cards included (31 days x2)
-
RECOMMENDEDUnlimited data SIM card
62 days
JPY3,000 JPY OFF!
- Super fast speed 5G (au)
- High speed: unlimited
- Hotspot: available (up to 30 GB x2)
- No phone number, data only
- 2 SIM cards included (31 days x2)
-
3GB/day data SIM card
93 days
JPY3,000 JPY OFF!
- Super fast speed 5G (docomo)
- High speed: up to 3GB/day*
- Hotspot: available
- No phone number, data only
- 3 SIM cards included (31 days x3)
-
RECOMMENDEDUnlimited data SIM card
93 days
JPY5,500 JPY OFF!
- Super fast speed 5G (au)
- High speed: unlimited
- Hotspot: available (up to 30 GB x3)
- No phone number, data only
- 3 SIM cards included (31 days x3)
- *Payments are processed in Japanese Yen (JPY) only. Prices in other currencies are for reference only and may vary slightly, depending on the rate and card company.
- *3GB/day data plans come with a Fair Usage Policy (FUP) to manage network resources. This means you won't be disconnected, however, your speed will be limited to 1Mbps after using 3 GB of data per day.
Experience Japan’s most reliable 5G with au’s top-rated network — wide coverage, fast speeds, and high-capacity data that keeps you connected anywhere in the country.
Everything is available in English, including technical support.
No activation is needed for our data SIM cards. Just open the package, insert the SIM (SIM pin included!), and set up the APN.
Don’t worry—it takes less than a minute!
If you find out your phone is incompatible with our SIM card after ordering, we will immediately upgrade you to a Pocket WiFi for FREE if you purchased our Compatibility Insurance. (Pocket WiFi works with all WiFi compatible devices)
This unlimited data SIM card has no extra charges, and will never be disconnected. Stay online throughout your trip! (*Fair Use Policy may apply)
iOS Personal Hotspot, Android Tethering, and the PdaNet app are fully supported.
How it works
Ordering
Order
Place your order at least 3 days before your pickup date to ensure on-time delivery.
Shipment
We ship your order based on your pickup date, ensuring delivery the night before your arrival.
Pick up
Pick up is available across Japan, including airports, hotels, local post offices, and residential addresses.
Enjoy!
Enjoy your time in Japan! Simply dispose of the SIM card after use—no return needed.
Pickup locations
-
AirportPick up your order at Narita, Haneda, Kansai, or Fukuoka International Airport. Check airport counter hours for operating times.
-
Our OfficeYou may stop by our Shinjuku Office or pick up your order at our partner counters in Fussa (Yokota) / Iwakuni / Sasebo.
-
HotelWe ship to any hotel in Japan, so you can receive it and start using it when check-in.
-
ResidenceWe deliver to residential addresses, including friends’ homes. Residence name and room number are required.
-
Post OfficeStaying at an Airbnb where deliveries can be difficult to receive? Pick up at a local post office instead — available nationwide.
Check travel device compatibility
We realize that sometimes compatibility issues occur. If your SIM Card or eSIM is incompatible with your phone, we provide an option to upgrade to a Pocket WiFi device. Choose your device's brand
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Is your device SIM-free (unlocked)?
Your device:
eSIM
3GB/day(docomo)
Unlimited(au)
SIM
3GB/day(docomo)
Unlimited(au)
*1 Please <a href="https://support.sakuramobile.jp/hc/en-us/articles/31173946198041-Where-do-I-find-the-EID-number-on-my-phone" target="_blank" rel="noopener">click here</a> to check if your device is eSIM compatible.
*2 Product may not be compatible with the device; we highly recommend our 4G products instead.
The following Apple devices are not compatible with eSIM:The China, Hong Kong and Macau version of Apple watches / iPhones. Please click here to check if your device is eSIM compatible. Please click here to check if your device is eSIM compatible.
Be noted that your device is not compatible with eSIM!
You can still apply for a physical SIM card or a Pocket WiFi device to stay connected in Japan! Be noted that you cannot use hotspot on your device.
You can still apply for a Pocket WiFi device to use shareable internet and stay connected in Japan! The device must be SIM-free to be able to use our service. Please contact your operator to unlock your device. Read “How do I know if my phone is unlocked / SIM-free”
Alternatively, you can still apply for a Pocket WiFi device to stay connected in Japan! Be noted that your device is not compatible with SIM card or eSIM.
You can still apply for a Pocket WiFi device to stay connected in Japan! Be noted that your device is not compatible with SIM card!
You can still apply for a eSIM or a Pocket WiFi device to stay connected in Japan!
You can still apply for a physical SIM card or a Pocket WiFi device to stay connected in Japan! Be noted that you cannot use hotspot on your device.
You can still apply for a Pocket WiFi device to use shareable internet and stay connected in Japan! The device must be SIM-free to be able to use our service. Please contact your operator to unlock your device. Read “How do I know if my phone is unlocked / SIM-free”
Alternatively, you can still apply for a Pocket WiFi device to stay connected in Japan! Be noted that your device is not compatible with SIM card or eSIM.
You can still apply for a Pocket WiFi device to stay connected in Japan! Be noted that your device is not compatible with SIM card!
You can still apply for a eSIM or a Pocket WiFi device to stay connected in Japan!
We advice you to check if your device is SIM-free before purchasing our SIM/eSIM.
Read “How do I know if my phone is unlocked / SIM-free”
Customer’s Voice
-
MurkrowTravel SIM cardJul 19, 2026Reliable connection & Great customer service
Last autumn I picked up a Sakura Mobile SIM card for my Japan trip and it worked great wherever I went, very reliable, can't find anything to complain about.
via Trustpilot
This week I had a question related to an upcoming trip and they got back to me quickly, understood what I needed, answered my question, and even provided extra advice. -
Diem LamTravel SIM cardJul 14, 2026
Friendly & Excellent connection
Friendly, helpful and prompt service by the staff at the airport. Handed our SIM immediately.
No problem setting up the SIM. Instructions were super clear. Mobile phone recognises the SIM and network immediately. Just remember to restart the mobile phone to get connected.
SIM works well and fast. No problem at all.
via Trustpilot -
Danesh IraniTravel SIM cardJul 16, 2026
The service is flawless and works well…
The service is flawless and works well everywhere. I had to exchange one of my ESims to a physical SIM and customer service experience was absolutely fantastic. You guys are great. Keep up the awesome work.
via Trustpilot
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