Journey Japan eSIM Avis 

I bought an E-Sim ahead of time for my trip to Japan. Everything worked like a charm. I got a guide and was told to activate once in Japan. Did what the guide said, activated my E-Sim in the Android settings and had Internet right away. Reception was great everywhere I went, never had any issues.

5/5 recommend

Simple Setup and Very Good Coverage!
Loved everything about this E-Sim. It was our perfect Travel Companion throughout the 3 Weeks in Japan. Everywhere we went from Tokyo over Sendai and Nagano, we always had a stable connection and fast internet. The prices are more than fair and the benefits are great! So if you want to travel Japan with ease, than grab one of those SIM cards from Journey Japan !

Ottimo servizio, non ho avuto problemi di connessione neanche nelle zone di montagna più remote, super soddisfatto!!! Consiglio a chi vuole uscire dalle rotte più battute!

Only had signal about 60% of my trip and even when I did the speeds really weren't great, super slow and seems to be on the expensive side for what it is

Worked perfectly as described! Had signal the entire trip.

The eSim worked flawlessly and was super easy to set up. The whole purchasing process was super fast and dead simple to follow. While I was in Japan, I never had an issue with service, even in some fairly remote spots. I will definitely be using it again when I go back!

Very good connectivity across Hokkaido, though if you are intending to hike to top of Asahidake or Kurodake I have sad news, you wont be streaming the journey as connectivity just does not exist there. You have to just enjoy the nature. I did a roadtrip in Hokkaido and the only hiccup was in the remote mountains, where to be honest I did not need internet.

Hassle-free eSIM that worked almost everywhere. I had some low reception in the mountains north of Nagano, but besides that no issues.
I then recommended it to a friend who flew to Japan in November, he couldnt activate it at first but the FAQ on the site helped him resolve the issue immediately!!

The first time I went to Japan I used a pocket wifi, the second time I used Airalo and most recently I used JJeSIM. JJeSIM gave me the best connection without any throttling. While I think that Airalo was easier to use because of its app, JJesim connectivity was far superior.
Perhaps having an app that works with checking your data or topping off more data could be an improvement. Other than that it's perfect. I went down all the way to Fukuoka and all the way up to Hokkaido and never had connection issues.

While setup was a little difficult it didn’t take more than around 10 minutes to get hooked up. My wife and I went back and forth through Kyushu and had excellent service the entire time. Couldn’t recommend enough👍

We went to Japan from December 27th 2025 to January 14th 2026, we follow Chris Btoaf who’s YouTube channel helped us work out all aspects of our trip. He recommended the eSIM and it was absolutely superb, I paid for the unlimited data as I was uploading photos and videos to various chat groups back in New Zealand and my wife paid for 30 GB as she was using less data than me. Everything worked supremely smoothly and I have already recommended the eSIM to work colleagues. My experience was first class and I took 1000s of photos and videos on my phone and used the Googlemaps to navigate each day. Our experience was world class

Very easy to use, straightforward instructions, and excellent service through the duration of our trip. My husband and I each used Journey Japan eSIMs and visited Tokyo, Takayama, and Nagoya, and never once had trouble with reception. We will definitely be using Journey Japan on our next trip!

Fast and easy installation process with reliable speed and stability during my use in various parts of Japan

My husband and I purchased the unlimited data plan for our three week holiday in Tokyo. Our experiences with the esim was the same. Set up was easy and connection was fast upon our arrival in Haneda Airport. We used it mainly for Google and Apple maps, watching videos and social media. The coverage was solid although at times it slowed down but never enough to cause major issues.

I got their so called „ultimate“ plan.

For weeks, being in Chiba and Tokyo, there was at no point a 5G connection.

The mist is LTE, and my current connection speed it laughable.

Download: 0.16 Mbit/s
Upload: 0.21 Mbit/s

Overall, the eSim has always underperformed, the price is way too high for what it delivers.

I have an iPhone 16Pro, setup is correct according to them. The Phone is not the problem.

I have tried many eSims in Japan so far, all of then have bad sides, but this is the first that was basically useless, extremely slow and never, at no point, had a 5G connection.

It seems that their only selling point is an Influencer.

The reason i have it a try is an unlimited hotspot, but thats useless if the internet is too slow to even use your phone.

Purchased 26th of December 2025, currently 13th of January 2026.

Both me and my gf bought 10-10GB for our japan travel (3 weeks). We haven't encountered any issue with the service, and we went through cities like: Tokyo, Kyoto,Osaka and Kinosakionsen (which is a little bit of a distance from the big cities). The sims were working perfectly!

Fast and reliable! Different to the experience the first time we came to Japan when it took ages to connect and most time didn't work which resulted us having to switch provider mid way (and still didn't work well)

Chris has built a great business and I hope to use jjesim again when I return!

I purchased the unlimited data plan and made sure to install the esim a few days before I left the United States. On day 1 as soon as I touched down the connection was amazing and never dropped even in the subways underground! I will definitely be using this srrvice again next time I return to Japan.

I maintained service literally day 1, right when I landed boom service with this e-sim which in a foreign country where I dont speak or read the language was a huge boon thanks abroad in japan

Very easy to setup, worked flawlessly in Tokyo, Sapporo, Okinawa and Osaka, would absolutely use again and wholeheartedly recommend.