JapanWifiBuddy eSIM

Stay connected with our eSIM

  • Choose from a variety of powerful and flexible plans.
    Enjoy the best value depending on how long you're travelling.
  • Unlimited Data and Amazing Speeds Available
    Experience excellent download speeds and coverage
  • Powered by Japan’s Docomo and Softbank Networks
    Powerful networks with the best coverage throughout Japan
  • No return necessary
    Once your trip is done, just switch back to your home country eSIM!

Immediate email delivery

Quick and Easy setup

Connect the moment you land!
Unlimited data plans available!
More affordable prices compared to the competition
24/7 Native English Support helpline

The Best Bang-for-your-Buck. Period.

JapanWifiBuddy offers a variety of eSim options, ranging from simple and super-affordable plans, all the way up to unlimited data plans with industry-leading speeds and coverage. Stream, voice chat, upload or download all to your heart’s content, staying connected to friends and family during your time in Japan.

For more information on installation, please see our HOW IT WORKS page. You’ll be emailed this information upon order completion as well.

If our regular plans don't meet your requirements, please feel free to contact us for more options

Contact Us

for JapanWifiBuddy


1727 reviews
5 1556
4 161
3 10
2 0
1 0

DEBORAH T. | | 07 January 2020
Diamond WiFi Buddy
Worked great everywhere we went for 2 weeks, extra battery was nice... and best part was it was at hotel when we arrived and able to drop off at hotel with provided return envelope at departure. Would use this company again and highly recommend!

FELICITY M. | | 07 January 2020
Don’t visit Japan without it
Don’t visit Japan without it !

ANDREW J. | | 30 December 2019
Fast and worked perfectly
Fast and worked perfectly

JOSE V. | | 29 December 2019
Worked great!
The router does require charging a few hours into the day but the wireless charger provided made it easy to charge up. Communication from the seller was quick and great. I highly recommend this company and I would use it again.

JAKE R. | | 28 December 2019
Awesome Product
Great coverage and battery life with the battery bank. Would recommend to anyone who is traveling to Japan.

Quick Setup Guide

  • Requires a SIM Unlocked device with esim capability. If your device is locked, please contact your carrier to unlock it.
  • We include thorough instructions, via email, through our website and with customer service.
  • 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.
  • To avoid provider validation complications, in some cases when users order far ahead of their actual trip, we will send a confirmation email, with a separate QR code later on, closer to the departure date.