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Based on 48356 reviews on
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Great experience using Ubigi esim
Great experience using Ubigi esim. 15 days in Japan, no problems. We went from Tokyo to Hakone to Kyoto and could always connect. Highly recommend
Kate, 12 Oct 2026
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Excellent reception 👏
Excellent, set up before I flew out, started as soon as I arrived in Japan.
Easy to top up via the APP.
Thank you
customer, 12 Oct 2026
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Combo eSIM didn’t work for me.
It wasn’t clear that I needed to choose just Ubigi eSIM in my phone’s settings. The default was combination and I selected that option. Data service was pretty bad but once I went into the settings and chose only Ubigi it worked well with no issues.
Chris from California, 12 Oct 2026
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The app delivered as promised with no…
The app delivered as promised with no issues
customer, 12 Oct 2026
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In some areas poor reception but in…
In some areas poor reception but in general good
customeryavar, 12 Oct 2026
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Immediate connectivity
Immediate connectivity
Nadia Ballarin, 12 Oct 2026
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Works great
It works great even in remote places
customer, 12 Oct 2026
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I use this app every time I travel and…
I use this app every time I travel and it’s convenient and easy to set up! Also has great connectivity through out the countries I’ve traveled!!
customer, 12 Oct 2026
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So easy to set up
So easy to set up
it just works effortlessly
Ryan Prasad, 12 Oct 2026
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Highly recommend for Korea
My phone works the same way it does at home. Fast and unlimited.
Sabine, 12 Oct 2026
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Easy to use and worked very well while…
Easy to use and worked very well while I was abroad.
customer, 12 Oct 2026
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The network is great
The network is great, hasn't failed us even once, not in the woods or isolated hiking areas.
GC, 12 Oct 2026
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Great experience.
Worked well through Paris and England. Went perfectly.
Becky Carr, 12 Oct 2026
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Seamless process to switch when I…
Seamless process to switch when I arrived in Japan. No issue with connectivity and it’s fast.
Yihui Wang, 12 Oct 2026
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eSIM Japan
No issues , easy to use
customer, 12 Oct 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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Each order can only include one eSIM data plan.
If you choose to add a new one, the current plan will be removed. What would you like to do?