I've used I Ubigi several times on different trips to Japan. When I went to add my eSIM for my most recent trip, it wasn't loading correctly because I deleted it after my last trip and apparently eSIM providers remember your device ID and assume you'll keep the eSIM they assigned you during your first transaction.
Anyway, there was no way for me to activate it on my own, so I had to contact customer service. After I sent the email, I assumed I'd have to wait until at least the next day to hear back from them and then deal with going back and forth for hours until it was resolved, but no! To my surprise, someone (shoutout to Chaouki!) emailed back within minutes and had my connection activated after a few messages. I honestly couldn't believe it. Highly recommended!
Laurel, 11 Jun 2026
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Speed and conection are sometimes big problem
For decent amount of money you get conected. Sometimes its slow.
customer, 11 Jun 2026
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It was easy to connect based on the…
It was easy to connect based on the guidance by ChatGPT.
Takeshi, 11 Jun 2026
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Its been working great would highly…
Its been working great would highly recommend
Anmoynus, 11 Jun 2026
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First time user experience
Being our 1st time using an esim whole abroad, we had to rely on it Internet instructions and YouTube tutorials, and even that didn't prepare us for exactly what we had to do with this to work properly (disabling primary SIM, turn on data roaming, turn off data switching, etc). Once we got the hang of it after a couple days it's was fine. Then we had a Ubigi data network outage at a very critical time when navigating back to put hotel, and no notifications or email was given, we just lost all network with no explanation as to why. Other than that, a pretty solid service.
Jesse Hookano, 11 Jun 2026
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Family esims
Altought i can't see multiple esim active on my account and the explanation on how to activate many esim for the family are not clear
The service is effectively valuable also for family vacation
customer, 11 Jun 2026
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Great service
Great service, easy to set up.
dave, 11 Jun 2026
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Great service
The connection was great, especially in Tokyo. There was one day where service went out for a little bit in Osaka, but Ubigi was quick to fix the issue and gave me a coupon for 50% off next use.
Erica Lee, 11 Jun 2026
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Great product would be happy to use…
Great product would be happy to use again.
Simon, 11 Jun 2026
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Easy to purchase, good coverage
Easy to purchase, good coverage
LongTimeBuyer, 11 Jun 2026
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Not quite 5 stars because internet…
Not quite 5 stars because internet reception was good, but not phenomenal.
John, 11 Jun 2026
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Connectivity to the internet was good
Connectivity to the internet was good
customer, 11 Jun 2026
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Was a lot easier to use than I…
Was a lot easier to use than I expected. Now everytime I go traveling I’ll use Ubigi. To be fair they are not the cheapest but I want convenience and quality they even show you how much data you are using! Great product!!
Chris , 10 Jun 2026
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Great connectivity in UK
Great connectivity in UK. Highly recommend it.
customer, 10 Jun 2026
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Working just fine in Japan
Working just fine in Japan. Don’t have any problems. Great service.