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Based on 43984 reviews on
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The coverage is excellent
The coverage is excellent. However I will take one star away for the speed. Overall it was good service.
Tim, 21 Aug 2026
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worked very well on my trip to osaka…
worked very well on my trip to osaka japan. good reception and fast.
Klant, 21 Aug 2026
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So easy
I’ve used e-sims before in different countries but using Ubigi e-sim in Japan has been the easiest and glitch free solution. I’ve spent several days in Tokyo and am about to travel inland but I am confident that my communication connection will remain. Big thanks
David Ritchie, 21 Aug 2026
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Good service
Good service
customer, 21 Aug 2026
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Works perfectly well out the gates
Worked perfectly fine when I got off the plane and around most major areas always had at least 3 bars. This is coming from being in LA. When I was in Japan and China using ubigi it was also equally pretty good and decent
customer, 21 Aug 2026
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Super easy
Super easy to buy a plan and apply/use it
customer, 21 Aug 2026
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It was easy to install and worked from…
It was easy to install and worked from the moment I landed in Japan. I am very satisfied.
R V, 21 Aug 2026
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Impressed first timer
This was our first time using eSIM, and we have both iPhone and Android, so it took a bit to get it right, but after that it's great.
Hai-Duc Le, 21 Aug 2026
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Easy, worked, good.
Was easy to get set up and had data immediately. Didn't miss having a local number at all.
Nick S, 20 Aug 2026
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Ease of getting eSIM and plan.
Ease of getting eSIM and plan.
Kamesh Kumar, 20 Aug 2026
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As promised
As promised, I always have reception and fast internet. Top
carolina, 20 Aug 2026
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Easy connection,while in Ireland thank…
Easy connection,while in Ireland thank you Ubigi.
Jojo Alquiza, 20 Aug 2026
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Recommend 100 %!
Recommend 100 %!
Ondřej Jícha, 20 Aug 2026
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The coverage to be improved
The coverage is not quite good in the area of islands of Ischia and Procida.
Ivana Rajkovic, 20 Aug 2026
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Applying for SIM was straightforward
Applying for SIM was straightforward. Their website was easy to navigate and secure. I would have no problems recommending or using this company in future
RGB, 20 Aug 2026
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How to check eSIM compatibility
Smartphones / Tablets:
Dial *#06#. → If an EID number appears, your device is eSIM-compatible.
Windows 10 / 11:
Press Windows+I. Go to “Network & Internet” → If you see "Cellular", your PC is eSIM-compatible.
How to check carrier unlocking
iPhone / iPad:
Go to Settings > General > About. Scroll to Carrier Lock. → If you see “No SIM restrictions”, your device is unlocked.
Android:
Go to Settings > Network & Internet > Mobile network. Disable Automatic network selection. → If multiple networks appear, your device is unlocked.
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How to check eSIM compatibility
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