The Ubigi antenna pictogram is not displayed in Japan, why?
In Japan, Ubigi works with two telecom partners: NTT Docomo and KDDI.
NTT Docomo – When connected to the NTT Docomo network (sometimes also displayed as Ubigi), the antenna pictogram will appear normally on your device.
KDDI – When connected to the KDDI network (which may also display as Ubigi), the antenna pictogram might not appear at the top of your screen. This is due to differences in network protocols between Ubigi and KDDI.
⚠️ Important: Even if the antenna pictogram is not displayed, your internet connection will still work. You can browse, stream, and use online apps as usual.
This ensures you can enjoy seamless connectivity in Japan, regardless of which partner network your device connects to.ed, your connection will work, so please try your connection and you will have access to the Internet.
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Great
Based on 45472 reviews on
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Very easy to install and use
Very easy to install and use, only the data flow in Tokyo was a little slow
THIERRY, 11 Sep 2026
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Great uninterrupted service
Great uninterrupted service! Exactly as described and hoped. Easy setup and reverse back to my original sevice. Highly recommended!
Denis L, 11 Sep 2026
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Great service even out sailing in the…
Great service even out sailing in the Greek islands
customer, 11 Sep 2026
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It’s very easy to use
It’s very easy to use . The connexion had no problème . . The price is correct .
NHT, 11 Sep 2026
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works as expected
works as expected - good value
customer, 11 Sep 2026
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Best experience with an eSIM so far
I’ve used other eSIM providers,Ubigi has been the best from ease of setup installation, purchasing and coverage throughout western, Central, and eastern Europe. Definitely recommend
customer, 11 Sep 2026
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Easy to use .
Easy to use .
vicki, 11 Sep 2026
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Good rates
Good rates, excellent coverage, simple setup. It works. Tip: set it up at origin country and will be active when you land in Japan.
customer, 11 Sep 2026
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Ease of use and install
Ease of use and install
customer, 11 Sep 2026
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Great service connected as soon as I…
Great service connected as soon as I switched phone on abroad. Can keep track of data used and remaining data.
Jamie, 11 Sep 2026
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fast and reliable! a must for your trip!
it was operating at a good speed and it helped me with my entire trip to japan! i will use it again in all my trips moving forward
alwin san jose, 11 Sep 2026
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Easy to install
Easy to install. Fast connection. No problems. Good connections
Christian R, 11 Sep 2026
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Good connection
Good connection
HK, 11 Sep 2026
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Everything was smooth and easy!
Everything was smooth and easy!
SAMN, 11 Sep 2026
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First time using an eSIM
First time using an eSIM - Turkey, but it was easy. Downloaded in the UK, followed the instructions and everything worked as soon as we landed. Good price and excellent connection whist away.
John, 11 Sep 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.
You already have an eSIM in your cart.
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?