Journey Japan eSIMAvis 

Have used JJeSim twice on two separate trips to Japan and will continue to do so in the future!

- Great constant connection
- Easy to set up (really simple how to provided by email)
- Decent price
- Some good little perks to use at NekoNeko / Big Echo / Lost Bar

I had never used an eSIM before and wanted super reliable cellular data for our 30 day trip to Japan. Journey Japan delivered. I was able to turn it on upon arrival at the airport easily. I turned both of our cell phones WHILE I was waiting in line at immigration. The instructions were clear and helpful. Having the ability to use my translation app work seamlessly was a super important lifeline, and we connected to good local networks consistently. Over 5 large cities and 30 days, I had functional cell data 95% of the time. I can’t understate how important the constant use of our phones were in Japan. This eSIM plan kept us connected!

It was 100% reliable for my whole trip from Tokyo to Okinawa!

Worked well for the week we were in Japan, competitive price, better gig offering for price, and great connectivity. Only critique or feedback is if there’s a way to have two phones share the gigs since neither my husband nor I came even close to using all 20gb per plan and that part feels wasteful (if combined we would’ve been at least half usage 😂). I don’t know if this would be possible so maybe some lower gb options for shorter stays even if all plans are for 30 days.

I did use it a lot. Without a good esim I will be totally lost in Japan. This was the best I ever used. I am very glad that I did trust this website. For 3 weeks any problem and the price is very very good. Highly recommend

I had nearly 0% issue with the internet. If you are underground or deep in the mountains, it's obvious signal will be spotty. My friends chose other esims and kept complaining through the 2 weeks trip their internet connection is bad. Not me! JJEsim is one of the best.

Ignore any other SIM company for Japan, this is the one to use. You don't get a tiny sliver of network that you'll fight other people for, you get a proper connection experience. I tried Saily, and I got no data standing at the base of the Tokyo Government Building. With Journey Japan eSIM I was browsing memes on top of Mt Shinhotaka and finding food in Katsuyama while at Lake Kuzuryu. And then when we got back to Osaka, the connection was spectacular and I was able to walk Dotonbori with confidence.

Competitively priced, just as simple to set up as other eSIMs and you support a genuine person and company rather than a faceless corporation.

I travelled to Japan in September, and being an Abroad in Japan fan it was an easy choice to go with a JJ esim. Set up was very easy, despite being technologically challenged. Upon arrival I immediately had WiFi coverage which never failed during my trip, unlike the esims that my friends had. I can't wait for my next trip to Japan when I'll absolutely be using another JJ esim. Thanks for making such a great product!

Very easy to set up and a reliable connection

I've used Ubigi back in 2024 for my Japan trip and while it worked in Tokyo, I had connectivity issues in Kyoto. Come 2025 I decided to give this one a try and to help support Chris' new business. I was pleasantly surprised I had no drop in service even when I was out in the countryside, and I was out there for weeks. We're talking countryside that still only accepts cash. If you're looking for reliability, this is the eSim you want.

Easy to use, full signal 99% of the time (only issue was when we were climbing one mountain in Hokkaido), would buy again!

This was the first time using an eSIM on my phone and it was exceptionally easy to order and set up! Everything worked great and we could travel Japan without worrying about connectivity at all.

Setup was easier than expected and wherever I went the connection was solid and delivered. When planning a trip to a country that's not run on English, it gave me peace of mind to know that my internet connection was reliable so that I could check Google Maps & Google Translate lol Also I loved uploading all my photos and videos to the socials instantly

At the airport, I couldn't get the eSIM card to work right away. I asked one of the stores that also sold eSIM cards if they could help me. A few quick fingers flew across my phone, and 30 seconds later, your eSIM was working. And it works everywhere! We've been traveling for 12 days (9 more to go), and whether we're on the train, in the car, or on our bike, it works as it should. My girlfriend has a card from a competitor, but it doesn't work as well. I say, keep it up!

Set up was really easy, I was connected before getting to baggage collection! Didn't lose coverage once which was really important as we had a campervan and relied heavily on data for navigation. The price was very reasonable too. I will definitely use again on my next trip.

Did a 3 week trip around Japan and had mobile data in all of the places we visited with no issues. Worked better than other eSIMs, especially in rural areas.

Useless. Complete waste of money, It mucked up my phone settings and I had great difficulty and additional cost to restore them.

Used this e-sim for my 3 week trip in October of this year and couldn't rate it highly enough. From atop a small mountain in the countryside of North Japan to the underground levels of a Japanese train station, I never lost coverage anywhere. It is a little bit pricier than some other e-sim providers but it's well worth the price in my opinion. Having done extensive research on what e-sim provider to choose I saw reviews of many people using other providers losing coverage constantly or the connection simply not working. I got the 20gb plan and had barely used half of it by the end of my stay in Japan. From using Google maps to navigate to the Disney app in TDR, everything worked seamlessly and never had any issues with any apps or websites not working.
Would definitely use again for a future trip and would recommend to anyone. Thank you Chris and team for creating such an amazing product.

I set up the E-SIM before even going to japan, i just had to turn it on my Iphone when i arrived at Haneda and worked wonderfully during my 7 days on Tokyo.

I walked and used the subway all over tokyo constantly and never lost the signal or felt like i had any throttle on the speed.

Defenetly using it again next trip to japan

Extremely easy and reliable. I was very nervous about my trip to Japan and how dependant I would be on my phone for managing funds, navigating the country and accessing tickets for the Shinkansen. I was able to get the journey Japan e-sim working quickly and easily as soon as I landed. The speed was great and no matter where I was (even mountains in the middle of the country) I always had a good connection. I was happy with the price and didn't need the 20gbs I purchased for the trip.

Very grateful I choose this e-sim as my partner choose to use a Sim card and roaming which ended up barely working and we were completely reliant on my connection.

It's a good product and gives you so much less to worry about. I'll definitely keep using this Sim on return trips as I'm confident I'll have what I need wherever I go.