Reliable connection .
Few dropouts when traveling on the shin train as expected.
5 bars 5g at all times while in metro areas.
5g and mostly 5 bars in the rural areas.
Excellent value for unlimited 15 days trip.
customer, 08 Jul 2026
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Great signal
Great signal
customer, 08 Jul 2026
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Worked perfectly
Worked perfectly
Gary Powell, 08 Jul 2026
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Easy connection and working everywhere in Nagoya!
Easy connection and working everywhere!
Turkiye, 08 Jul 2026
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Unigi Super
All settings are automatic.
Data usage is quite good. Although there are occasional connection issues, I’ll be using Ubigi for all my eSIM needs from now on.
Tuncer Altıkulaç/ Türkiye, 08 Jul 2026
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Excellent eSIM for travelling in Japan
After spending quite a bit of time comparing different eSIM providers and reading reviews on various platforms, I decided to try Ubigi for our trip to Japan—and it turned out to be a great choice.
My daughter and I purchased different plans (25GB for me and Unlimited for her), and we were both very satisfied with the service.
The only minor issues we noticed were a few brief signal drops while the Shinkansen passed through tunnels, and no signal in some parts of the Tokyo subway. Aside from that, the connection was consistently fast and reliable everywhere we traveled in Japan.
The installation and activation process was simple and straightforward. As soon as we arrived in Tokyo, the eSIM connected automatically and was ready to use.
Overall, Ubigi provided excellent coverage and performance throughout our trip. Based on our experience, I would definitely recommend it to anyone traveling to Japan.
Rong, 08 Jul 2026
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Easy to use
Easy to use. Smooth connection and quick to add more menu.
Highly recommended.
customer, 08 Jul 2026
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First time traveling internationally…
First time traveling internationally and was worried about being able to stay in contact with home. Cell carrier did not offer a reasonable travel package like some of the other carriers. I did some searching and was inundated with eSIM options, but something just stood out with Ubigi for me. The set up was simple and the eSIM worked as described. As soon as I enabled the eSIM and was in the target area, it just worked. No issues during my stay and the price was reasonable. I would definitely use again.
J. Senior, 08 Jul 2026
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Easy and consistent
Easy, consistent and reasonably priced.
ADalyan, 08 Jul 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