JapanWifiBuddy SIM Cards

Stay connected with our SIM Cards

  • Choose from flexible short-term plans to economical long-term plans.
    Enjoy the best value depending on how long you're travelling.
  • High-speed LTE data.
    With download speeds up to 150 Mbps [?]
  • Runs on Japan's well-known Docomo network
    Powerful network with excellent coverage throughout Japan
  • No return necessary
    Once you’re done with the card, just throw it away, or keep it as a memory of your amazing time in Japan :)

Free Shipping

Airport pickup / Hotel delivery available

Simple Setup - No activation.
Install and go!
Unlimited data.
No Cutoff!
More affordable prices compared to the competition
24/7 Native English Support helpline

Generous Data Plans for Power Users.

JapanWifiBuddy offers the most generous data plans, starting at 30GB per 8-days, providing unmatched bang-for-buck. Stream, voice chat, upload or download all to your heart's content without any worries of network speed cuts or the fine print often associated with "unlimited" plans.
Subject to AU’s “Fair Use Policy” - See Terms of Service for more info.

$ 49

30GB total LTE allowance

$ 69

60GB total LTE allowance

$ 89

90GB total LTE allowance

$ 99

120GB total LTE allowance

for JapanWifiBuddy SIM Cards


28 reviews
5 25
4 1
3 2
2 0
1 0

Mark R. | | 15-day SIM Card | 28 June 2019
Worked as advertised. Easy to
Worked as advertised. Easy to pickup at airport post office.

SIN P. | | 15-day SIM Card | 26 June 2019
Convenient and Easy
It has clear instruction on where

DEAN D. | | 12-day Unlimited SIM Card | 26 June 2019
Great experience
The package was ready for pickup exactly where it was supposed to be at Narita. The SIM card worked great in my unlocked Galaxy S9+ in both the greater Tokyo area, and Sendai. Two 6-day cards were provided rather than a single 12-day card, and I had to change after 6 days - if I had not read the materials provided carefully, I might have missed that and had a problem.

GERRELL M. | | 6-day Unlimited SIM Card | 26 June 2019
Very helpful for navigation and
Very helpful for navigation and had strong signal everywhere I went

GIORGIO S. | | 15-day SIM Card | 25 June 2019
Smooth delivery and great coverage
Booking process and delivery to hotel were very smooth and we had great coverage in all places we went, including some quite remote villages. Highly recommended

  • Requires a SIM Unlocked device. If your device is locked, please contact your carrier to unlock it.
  • We include thorough instructions, but swapping SIM cards requires some knowledge on your specific device, including access to optional tools that might be needed. Please look into setup for your specific device before leaving home for Japan.
  • Each card is available in nano size, making it compatible with almost all recent tablet and smart phone models. Please ensure your device supports this format or optionally purchase an adapter from us.
  • LTE/3G bands used:
    LTE: 2100MHz/1700MHz/1500MHz/800MHz
    WCDMA/HSDPA/HSUPA: 2100MHz/1700MHz/800MHz
  • These are data-only SIM Cards. Carrier-based voice calls and text messaging are NOT supported. However, data-based messaging and telephony solutions such as Skype, Facetime, Whatsapp, Line etc. are supported.

Please ensure that your device is compatible with our SIM cards.

JapanWifiBuddy is not responsible if your device has compatibility issues with our SIM Cards.

If you have doubts, please consider renting our Pocket Wifi devices instead, which support all Wifi-enabled devices.