Overall good but there was a 10-14 hour period where the service was down. Thankfully I could find wifi to supplement, but it would have been bad if I wasn’t able to.
LL, 06 Jun 2026
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A good ESIM
I had to change eSim providers whilst in Japan as the one I was using was very troublesome. Many Ubigi reviews were positive, so I downloaded it. Found it easy to set up and it worked very well. There was one small outage, but Ubigi have corrected it and offered compensation, great integrity.
RJc, 06 Jun 2026
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Perfect Experience
I used an Ubigi eSim for my two weeks in Japan. It was my first time using an eSim and the process was very simple. The app explained it well and I had no issue with activation.
I purchased an eSim with unlimited data for peace of mind. I used it frequently and daily, mainly for social media, communicating with family and navigating Japan. I had no issues with connectivity in Tokyo and Osaka. I would absolutely recommend Ubigi and will definitely use it again later this year for my next travels!
Maja, 06 Jun 2026
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have a good conection and fast services in atenction recuarement
xcelente services, for my needes
customer, 06 Jun 2026
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It’s a must-have when travelling…
It’s a must-have when travelling abroad. The eSIM was easy to install and came with clear instructions on how to change the mobile settings upon arrival.
I experienced some downtime for a few hours, but the follow-up service was excellent.
I would recommend Ubigi to all travellers!
Erling, 06 Jun 2026
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The eSIM was great
The eSIM was great. Worked As soon as I landed. It did take a bit of time following instructions to load the eSIM as QR code did not automatically work from email.
Would definitely use again,
customer, 06 Jun 2026
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I couldn’t get connectivity for…
At the I couldn’t get connectivity for a while. I thought it was to connect as soon as I landed in Japan but I couldn’t . I waited about half a day before it worked. Today I read an email saying there was a service interruption .
Averil Rayward, 06 Jun 2026
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Effortless to arrange
Effortless to arrange. Good mobile internet coverage.
Bob, 06 Jun 2026
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Worked fine…but
Worked fine in Osaka, Kyoto and Hiroshima but in Tokyo lost connection alot during the Day even let me without network or mobile signal a full Day
- Tiago Maia, 06 Jun 2026
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Works pretty good
Working pretty well had just few times that it had some issues. But altogether so far have been quite smooth sailing with this internet service. Funny that it works so well when we stayed in Okinawa but the connection issues what I have experienced have been in Tokyo. Just short issue not anything major. So altogether great service.
Heli, 05 Jun 2026
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Japan from Australia
Arrived in Japan from Australia and had no issues with internet connection for the 8 days. I visited Kyoto, Osaka and some outer regions ~2 hours from the cities. Thank you
Rosanne Freak-Poli, 05 Jun 2026
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Smart Purchase for Overseas Travel
I had a great internet connection while on my vacation overseas. Using Ubigi eSIM was a smart purchase!
PBurwell, 05 Jun 2026
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Work well
Work well. Very satisfied!
Brian St-Pierre, 05 Jun 2026
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Excellent !
Excellent !
customer, 05 Jun 2026
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It’s very easy to use.
It’s very easy to use.
Amazing signal.
Susan, 05 Jun 2026
감사합니다
귀하의 메시지가 전송되었습니다. 곧 답변드리겠습니다.
감사합니다
귀하의 뉴스레터 구독을 고려했습니다.
eSIM 호환성 확인 방법
스마트폰 / 태블릿:
*#06# 입력. → EID 번호가 나오면 eSIM 지원 기기입니다.
Windows 10 / 11:
Windows+I 를 누르세요. “네트워크 및 인터넷”으로 이동하세요 → 셀룰러 네트워크가 보이면 PC가 eSIM을 지원합니다..
통신사 잠금 해제 여부 확인 방법
iPhone / iPad:
설정 > 일반 > 정보로 이동 통신사 잠금 항목까지 스크롤. → “SIM 제한 없음”이 표시되면 기기는 잠금 해제 상태입니다.
Android:
설정 > 네트워크 및 인터넷 > 모바일 네트워크 자동 네트워크 선택을 끄세요. → 여러 네트워크가 보이면 잠금 해제된 기기입니다.
eSIM 호환성 확인 방법
통신사 잠금 해제 여부 확인 방법