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.
Contact
You haven’t found the answers to your questions in Assistance or FAQ?
You haven’t found the answers to your questions in Assistance or FAQ?
Great
Based on 39653 reviews on
Verified
Verified review
This user has been identified as a buyer
Great and easy to use service
Great and easy to use service
Kam, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
It worked fine
It worked fine, except on my last day in Greece. I had used 3.x gb of 10gb and it didn't work for several hours. It was annoying. When I got home and saw an email to review, I was going to give less stars, but then saw that they offered a one-time 50% off of any plan for a year for the inconvenience, so good customer service.
customer, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
Easy to access and the cellular servuca…
Easy to access and the cellular servuca was amazing, had no issues connecting to data
customer, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
everything is great
everything is great, nothing to add :)
Assen, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
Connectivity
Being always connected in my travel
Alexandre Robles, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
Excellent reception
Excellent reception
TAL KRIVOROT, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
Previous experience was excellent
Previous experience was excellent
customer, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
Easy to install and set up
Easy to install and set up, even on hotel wifi
customer, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
Good value easy to set up and connected…
Good value easy to set up and connected when sirplane landed in ud
M T, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
Best e-Sim so far
Internet started working as soon as I landed in Spain. Never had any issue throughout my trip
Filippo P., 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
No problems encountered 👌🏼
No problems encountered 👌🏼
customer, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
Easy install, great connectivity
Easy install, cheaper rates and great connectivity.
Tariq Nehvi, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
Everything went well
Everything went well. Transparency. Data consumed easily monitored by using app.
Borhannudin Mirun, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
4 weeks in Japan 10G
Used a Ubigi data only eSim traveling around Japan for a month. No issues worked everywhere, cities and Rural. 10G was plenty for Google maps and normal internet searches. I did switch phone to Flight mode each night. Will use service again when return to Japan.
Mike N, 16 Jun 2026
Verified
Verified review
This user has been identified as a buyer
Perfect/ not everywhere
In the section of france that I was in (Montevrain, Serris) I couldn’t get a decent 5G connection.. it was working super well in Paris tho
Charles, 16 Jun 2026
Thank you
Your message has been sent. We’ll get back to you shortly.
Thank you
We have taken into account your subscription to the newsletter
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?