Journey Japan eSIM Avis 

It just works!

My third trip to Japan, and for the first two trips we had to suffer very dodgy internet. It was so nice to just activate it and have no issues for the following weeks, at times it was even better than the WiFi. 10/10

I purchased a 15-day Journey Japan eSim for my trip to Tokyo and Kyoto in June 2026.

It worked just like you'd hope. Installed fine and provided me with problem-free connectivity.

As an Abroad in Japan Fan I'll give as unbiased a review as possible;
I brought the esim for quite a reasonable price compared to competitors, I arrived at haneda and had a bit of trouble setting it up, I believe that to be because it's my first esim but the chat team were a huge help when I messaged.
From there I genuinely have no complaints other than tunnels I did not lose connection to WiFi 1 time, hiking up mountains or across the nakasendo, across the oceans of kamakura the WiFi was perfect

It's great, when it works. Anywhere crowded, it becomes completely unusable.

When I first heard of this eSIM, it was advertised as being on Japan's best mobile network, NTT Docomo. Well the new "5G Pro" plans are on a different network, and the 4G plans are actually on IIJ, not NTT Docomo. While IIJ might use NTT's network, this is very deceptive.
Keeping this in mind, I feel like I didn't have the same experience a local NTT Docomo user would've had, waiting at a train station noticing the tourist next to me doom scrolling TikTok videos while I couldn't even get Google Maps to show the train schedule

Edit: I contacted supported after leaving this review and am giving an extra star (going from 3 to 4) based on the fantastic handling of the situation and as I believe steps are being taken to rectify the problems I had.

I just purchased my third eSIM through Journey Japan and was met with such kind customer service and help. The first time I used JJ eSIM it was the first time I had ever used an eSIM. Previously on all of my other Japan trips I used pocket wifi, but was getting tired of having to lug it around and make sure it was charged. So, I gave JJ eSIM a go and I loved it! Fast forward to this being the 3rd time purchasing an eSIM with them and I made a mistake on my own end and contacted support. They were so kind and helpful and made the situation right for me even though it was me who made an error when checking out. Their product is top notch and their customer service is too 🥹 Thank you from Seattle!!

Had an issue setting up my esim and the support team was very quick and eager to help me out.

The eSIM worked in Japan so that’s the only reason for the one star. I have been fighting your support team for nearly a month and a half now to get a refund that was promised to me. Long story short, I accidentally bought the 30 day plan, reached out to them and they agreed to make the exception and refund me the plan if I bought the 15 day plan. So at this point I had 2 plans purchased. Fast forward to today, and I’ve yet to receive my refund for the 30 day plan.

All I can say was we were 50 metres below ground, half way crossing the Kanmon Strait between Kyushu and Honshu, and we had perfect 4G reception with great speeds. I can't even get that kinda mobile reception at home. Am definitely buying JJ eSIM again.

Without a doubt the best eSIM I’ve ever used, travelling all across Tokyo and beyond it’s always fast and I’ve never had signal loss, even in the metro. It might seem a bit expensive but worth every penny, it’s truly unlimited too with no throttling.

Big fan of Chris and wanted to support him - the esim did not let me down. Between Tokyo, Osaka, Nara, and Kyoto, the connection performed admirably. I bought the unlimited 15-day and never experienced any throttling during my trip. One word of wisdom to folks reading this review - add your esim before you get on the plane so you can easily toggle it on when you land. You'll be connected from the jump.

Got the new expensive 5G ublimited subscription, and I was inpressed, not only did I had great speeds, kften surpassing local wifi in a hotel, but the signal was stable even in random mointan vilages and middle of nowhere parking spots. The signal vas even stable in a ahinkansen, which is impresive as I am use to lose conectivity even on a normal train.

Its procey, but probably one of the best Japan SIM experiences I had. Just wish they would sell a phisical version for folks without eSIM support.

Just did a 18 day trip to Japan, the e-sim worked great, no complaints. It was an easy process to activate on my phone and had great service throughout the entire trip!

Eenvoudig te kopen tegen een aantrekkelijke prijs. Installeren is ook eenvoudig, zeker met de heldere instructies in de email. Overal bereik, geen problemen, ook als hotspot gebruikt. Kortom, een aanrader.

I was in Japan for 28 days and found the 20GB plan was plenty for that time - I used it constantly for navigation, browsing, uploading to social media and sporadic Youtube streaming. Set up was easy and intuitive. But what really impressed me was the customer service support - I had a connectivity issue on my last day and despite it being well into a Friday evening, I had a friendly response to my email within 5 minutes with simple trouble-shooting instructions. My internet was back on instantly and I had no further trouble. Will absolutely be using this eSim for all Japan travel moving forward - 10/10

I just spent a month in Japan, this eSIM worked perfectly everywhere! Kurashiki, Osaka, Nara, Amanohashidate, Kyoto, Kanazawa, Tokyo and Yokohama. No connection issues, fast and reliable.

Your eSIM was just the best!!
My husband had another type which failed to work properly so he also bought yours.
We love your Japan videos…..keep them coming 👍

Purchased the SIM before our trip last year as we are long-time Abroad fans, so figured it was probably not junk. We travelled around Japan for 3 weeks - Osaka, Tokyo, Fukuoka, Kanazawa - and after turning it on I basically never thought about my connection again, it was just always there and working wherever we were, no different than back in the States. That's my highest praise - I spent my trip enjoying Japan and having data when I needed it, not focused on SIM cards. We're going back in the fall and I'll buy another one this time too, no question.

Recently used it on my 3 week long trip to Japan and it was stellar! The setup was easy peasy. Connection was sublimely steady throughout the whole trip. Only spotty in typical areas like an elevator or a train tunnel sometimes. Other than that I had no problems at all! Speed was fast and did not throttle at any point. My go to for my next Japan trip!

Unfortunately, I can’t evaluate the performance of the eSIM because it simply didn’t work. The customer service team, while very friendly, was a bit slow and unfortunately couldn’t help me. Neither the eSIM I purchased nor the replacement eSIM provided by customer service after 8 days without internet could be installed on my Google Pixel 6. To be fair, the purchase amount was refunded, but the exact cause of the issue could not be determined. An eSIM from another provider worked right away.

Used it in January this year in Hokkaido, Tokyo and Kyoto and it worked great. Easy to install, had good connection everywhere, recommend!