KDDI (au) Japan eSIM | Unlimited 5G High-Speed ​​Internet | The World's Best Internet Experience

The one click activation is so easy! Just make sure you are connected to WiFi first. Then turn on the app to do the one click. It activates within 30 seconds for me. So easy!

Speed is good, just maybe installation time a bit problem to me, saying activation fail but when reached japan no problem, so better check availability and make sure got data orwifi at your own country to finish install first

Can’t believe I got this for free as a gift from KKday. I purchased a day tour to Shirakawa-go and was gifted with a mysterious gift, which turned out to be a 7-day eSIM that offers 21GB of data in total. Since the purchase was last minute, luckily I got to use it before it expires (they only allow usage within 10 days I think). The signal is constantly strong and since its network is a Japanese one, there’s no problem such as blocked access to certain apps. If your tour isn’t sold out too fast, just purchase it at the last minute like I did and you might have the chance to make full use of this eSIM!

I checked my itinerary, stocks, and watched dramas in Japan with a smooth internet connection, so I had a great time!

Although it was a free gift with a KKday day tour package, the signal and speed were generally good, except in Osaka city and in rural areas like Ine Funaya, Amanohashidate, and Miyama Gassho-zukuri Village. The signal was only weak at times when the tour bus was winding through mountainous areas; otherwise, there were no major issues.

During my trip to Sendai, there was plenty of 5G signal in the city, and the internet speed was stable.

The automatic installation is very convenient. I used it in the Tohoku region of Japan and the connection was smooth without any problems. I would highly recommend it to people who use iPhones.

The reception is excellent, even in the mountains. It's inexpensive, so I recommend buying it.

Goood quality and easy to install eSIM

Actually, 12GB for 4 days is more than enough; you can't possibly use it all up! What's amazing is the speed – it's truly "high-speed"!! From the moment I got off the plane to my return trip to Taiwan, the whole journey was incredibly smooth!! Absolutely no lag!! Highly recommended! 👍👍👍