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

ADAM L. | | 16 December 2019
Super convenient, worked well
It was incredibly handy to have this while traveling in Japan. There’s free WiFi in many places but it’s almost always a pain to use. We used it for maps, transit, finding food, and random browsing and I don’t think we ever hit our limit. We were also in some pretty off the grid areas and the only time we didn’t have service was pretty deep in the mountains (or in a restaurant under the trains). The device did overheat once or twice while searching for a signal.

scott f. | | 15 December 2019
Great system for our trip
Used this product throughout Japan had no issues. Worked very well, we even used it in the hotel. Saved us a bunch of money compared to using our cellular data plan. Very easy to return just popped in in the prepaid envelope and dropped it at the post office in the airport They shipped to our hotel so it was ready and waiting when we arrived

DANISH B. | | 15 December 2019
We used the Diamond plan for a group of 4 people with heavy data usage and there were no issues whatsoever! The extra battery will be required to recharge the device at least once a day however :)

EMILY B. | | 15 December 2019
Great service and quality!
This was such a great experience and service! Beforehand staff were so helpful with great communication. It was easy to pick up at the airport and my hotel mailed it back for me in the provided envelop. We did use the provided travel charger, as we were out all day using it. Simple to use and both my husband could connect and use it with no issue. Will definitely use their service again and recommend it! Thank you!

SARAH S. | | 12 December 2019
Brilliant - zero issues, worked
Brilliant - zero issues, worked rurally

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.