Japan 8-day KDDI/Rakuten 5G SIM Card 8GB + Unlimited Data

Access high-speed internet in Japan with KDDI/Rakuten Mobile 5G/4G LTE Travel SIM card. Just plug and use without any registration. Order now to enjoy FREE delivery and get ready your trip smarter!

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  • The Japan-specific KDDI/Rakuten Mobile dual-network Internet SIM card can be used anywhere in Japan, allowing you to easily visit popular places such as Tokyo, Osaka, Hokkaido, Okinawa, etc.
  • Available anywhere in Japan within 8 days
  • No SIM card registration and mobile phone settings, just plug and go
  • Supports all social apps

Product Specification

  • Carrier: Launched by China Unicom, receive KDDI/Rakuten Mobile Network locally
  • Internet Speed: 5G/4G LTE
  • Validity Period: 8 days once activated
  • Data Limit: First 8GB traffic flow at 4G data speeds, and reduced to not below 512kbps thereafter
  • Tethering: Yes (first 8GB)
  • Calls: No
  • Texts: No
  • Card Size: Nano, Micro, and Standard SIM (3 in 1)
  • Signal Coverage: Japan (weak signal in island, suburbs and mountain area)
  • Expiry: 2025.06.30
  • * : Rakuten Mobile 4G service mainly uses BAND 3, which is supported by most mainstream mobile phones in Hong Kong; "AU KDDI 5G" mainly uses N77 and N78 frequency bands, and is supported by most 5G mobile phones in Hong Kong; "AU KDDI 4G LTE " mainly uses Band 18. Hong Kong's mainstream flagship mobile phones such as: iPhone (8 and later) and Samsung Galaxy S (S10 and later) all support it. Please confirm before purchasing; if the phone only supports Band 1, there may be a failure to connect in some areas as the coverage is not as good as Band 18.


1. Insert SIM Card after arrival
2. Turn on "Roaming"
3. Automatically connect to KDDI/Rakuten Mobile and set APN.
4. Most smartphones can automatically set APN. If it cannot set APN automatically, please refer to the manual in the package for setup.

Note: NOT to activate the SIM card in Hong Kong, otherwise you will not be able to access the Internet in Japan

Important Notice

  • Hong Kong Local Delivery: By Hong Kong Post Local Mail (FREE), the estimated delivery will be within 2-5 working days. By SF Express (courier fee payable on delivery), the estimated delivery will be within 1-3 working days.
  • Please activate the SIM Card before expiry.
  • SIM card will be activated once you insert the card into your mobile device and counted as the starting date of use. It's counted as one day whenver the card is activated before 23:59 HKT.
  • The SIM card will choose Softbank network automatically. Please do not choose other network providers, which may incur extra cost or malfunction for the card.
  • The quality of signal is affected by different environments. The speed of the network will be affected by factors such as terrain, climate, building obscuration and concurrent usage by number of people.
  • Service subject to  "Usage Policy and Fair Usage Policy" 

Cancellation Policy

No cancellations, refunds or changes can be made after purchase.


322 reviews
softbank sim network is good. very good signal during my ski trip in Hokkaido. thanks hyperair for speedy delivery too.
The card is really stable and well connected in Tokyo 👍🏻👍🏻👍🏻👍🏻
Good quality.
Very good