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Based on 37926 reviews on
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By far the best e-Sim atleast for…
By far the best e-Sim atleast for Japan, don’t think twice go for it, it won’t disappoint you. Great connectivity, had zero issues what so ever
Piush Sehgl, 26 May 2026
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Easy to set-up and had coverage…
Easy to set-up and had coverage everywhere we went osaka>kyoto>tokyo
customer, 26 May 2026
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Seamless connectivity
Seamless connectivity
Serena, 26 May 2026
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Great experience for first time user
This is my first time using an eSIM abroad and it worked like a charm. Bought online, setup within 3 minutes. Switched to the eSIM in my destination country and it tool about 5 minutes to get 5G wifi. Highly recommend.
Helen Dahlke, 26 May 2026
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Good connectivity
Easy connection, good connectivity in rural Japan
Michael Ryan, 25 May 2026
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Easy to use and easy to set up
Easy to use and easy to set up
Wendy, 25 May 2026
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Nearly flawless service
Nearly flawless service. One blip where I lost service, but popping in and out of airplane mode fixed the signal.
Ann, 25 May 2026
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Very convinient
Very convinient
Arne Kjeldsen, 25 May 2026
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Easy to connect
Easy to connect, use and operate. Was not disappointed at all.
J. Eldridge, 25 May 2026
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First time user of an eSIM…
First time user of an eSIM international service. My experience with Ubigi was great and I will be a future user
GargantuanUni, 25 May 2026
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eSIM worked perfectly
eSIM worked perfectly, easy to install and use.
James, 25 May 2026
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After setting
After setting, activation went smoothly abroad. Experience in Germany and Turkey is great, let’s see what will happen in Switzerland and Spain.
Jens Knoop, 25 May 2026
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Easy to use.
Easy to use.
T. Smith, 25 May 2026
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Americans in Japan needed Data
Three of us that traveled to Japan used Ubigi for data on our phones. We each had a very good experience. Only a few times, for very short periods did we lose connection, but I feel like that depends on location. I'm happy that we were able to order a set amount of data for a set amount of time, and I'm not worrying about further billing for a service I no longer require. Very good!
Cathy, 25 May 2026
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Good very good
Good very good
customer, 25 May 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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