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

KEVIN K. | | 12-day Unlimited SIM Card | 24 June 2019
Having to switch SIM cards
Having to switch SIM cards every 6 days is a hassle.

ALEJANDRO P. | | 18-day Unlimited SIM Card | 24 June 2019
Perfecto service
Perfecto service

BENNY C. | | 12-day Unlimited SIM Card | 24 June 2019
12 days data SIM
The package was delivered to Narita airport post office. The pick up was pretty fast. They gave me two 6 days SIM cards for a total of 12 days. The installation was easy if you know how to out in a SIM card for your phone. The instructions were clear and in English. I had no problems with my SIM card for the entire trip. I used it to to WhatsApp calling and the voice was clear. Very good service I would recommend it to everyone =).

STEVEN A. | | 15-day SIM Card | 24 June 2019

SOUHAIL M. | | 18-day Unlimited SIM Card | 24 June 2019
Exceptionally great service
Very efficient, arrived on time. Communication with support services was very prompt. I highly reccomend Japan wifi buddy!

  • 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.