Direct from Japan. Powered by KDDI au.
Travel across Japan on the KDDI au 4G/5G network with a local Japan eSIM. Choose 12GB for 4 days, 21GB for 7 days or 30GB for 10 days. Your full data allowance can be used for hotspot sharing.
There are no daily data limits, so you decide how to use your data throughout the trip, whether for Google Maps, social media, video streaming or sharing a hotspot with family and friends.
Hello1010 has tested this eSIM at speeds of up to 1,132 Mbps on 5G. Actual speeds vary depending on your device, location, network conditions and coverage.
In Opensignal's April 2026 Japan Mobile Network Experience report, au won both Reliability Experience and Consistent Quality, making it one of Japan's strongest-performing mobile networks for everyday connectivity.
KDDI au coverage: Check KDDI au network coverage
Peace of Mind
Install the eSIM in your phone first and arrive in Japan connected instantly. You will get connected right after you land and experience the fastest Mbps from start to end of your journey. Remember to install it within 30 days from date of purchase.
Need more data?
This plan is the sibling of our bestselling eSIM Japan Infinite-Unlimited Data plan, which offers unlimited data. The key difference is that this plan comes with a higher hotspot allowance, allowing you to use your entire data quota for hotspot sharing.
Select 12GB, 21GB or 30GB plan
Choose 4, 7 or 10 days
No Registration Needed
- Use QR code in Japan within 30 days from purchase
- No phone number, Cannot call, SMS, top up
- TikTok and all social apps usable
- eSIM cannot be reinstalled once it has been removed from the device
Country List
Country List
Compatible Phone List
Compatible Phone List
Product FAQ
Product FAQ
Speed Test Results
Speed Test Results
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| Hokkaido, Japan (2024) |
Osaka, Japan (2024)
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Speed-test results are for reference only and may vary by location, device, network conditions and time of use.
M
Overall im quite happy
Easy installation and data quality is great!
C
Overall, had a good experience with this product. Recommended. Thank you!
A
I'm quite surprised with the performance. It's above expectations. Always connected to 5G and the speed was very good even in building and subways. Recommended.
A
I seriously can't find any fault.
R
Very easy and seamless. No issues at all!
S
Having recently embarked on several international trips, I can confidently say that using an eSIM has revolutionized my travel connectivity. Gone are the days of hunting for local SIM card vendors upon arrival, fumbling with tiny plastic cards, or dreading exorbitant roaming charges. eSIMs offer a level of convenience and flexibility that truly enhances the travel experience. Thank your.
A
Setup was fast and straightforward. Internet was smooth and hotspot was convenient too.
K
Connection speed is reliable and it was a better option to have separate eSim between me and my partner travelling so we could split up at different times without relying on a portable Wifi device. Huge convenience for our travels.
W
I went to various places of Japan mentioned above and all coverage ate good. I will purchase it again for my next trip to Japan
W
Very good , no issue with line
R
Was easy to install and as soon as I landed in Japan and activated it I was online already. Speed was good
C
Easy to use/installation & speed is fast. Like this product! Can use for WA calls and text messages without fuss. However, certain parts in Hokkaido/Niseko ski resort esp. hilly areas the coverage is poor.
C
This is second time buying eSIM to use in Japan. Hope the coverage/speed will be good Hokkaido. Very convenient and highly recomended.
D
Nice and fast!
K
Never fails always ready to connect from Kyoto to Maibara to Nara to Wakayashima.
A
Very very reliable and had not experienced any problem at all. Good product.
M
Super easy to set up and use, the eSIM was incredibly helpful throughout my entire trip in Japan. It provided fast and reliable internet, making navigation, translation, and staying connected with friends seamless. I highly recommend it for anyone traveling to Japan!
A
This is our second time using esim in Japan.
Absolutely amazing. Easy to begin with. Even the reception on Mount Fuji is top notch that we managed to scan the qr code and downloaded the Mount Fuji certificate!
A
it so good. the network is so fast. it help me go around Tokyo surfing the internet, looking for google map and so on.
Z
Some blip of no connection here and there, but otherwise good coverage for the city, Disneyland and Fuji area.
L
A friend recommended Hello1010 to me . I bought the eSIM Japan and so glad I did! With the airport wifi, I managed to activate it without any problem. Just follow the instructions given.
We stayed for 7 days in Tokyo and I would say 10GB is more than enough for that 7 days. Great coverage and fast speed internet. Highly recommended 👍
S
Overall experience was great! Install the eSIM in my home country one day before using wifi. The data allowed me to roam around freely in Tokyo as I depend a lot on Google Maps to find my way around.
