The EID which stands for “Embedded Identity Document” is a serial number corresponding to the eSIM installed in a connected device (smartphone, tablet, laptop, etc.). This serial number is unique for each eSIM.
Explore Ubigi eSIM data plans for seamless connectivity worldwide!
Install once, stay globally connected for life with a single eSIM, compatible with all eSIM-enabled devices : iOS Phone, iPad OS, Android, and Windows 10 and 11.
Are you a company with teams on the move?
Manage your employees' LTE/5G connectivity on smartphones, tablets, laptops, and hotspots while maintaining complete control over your costs.
Explore Ubigi eSIM data plans for seamless connectivity worldwide!
Install once, stay globally connected for life with a single eSIM, compatible with all eSIM-enabled devices : iOS Phone, iPad OS, Android, and Windows 10 and 11.
Are you a company with teams on the move?
Manage your employees' LTE/5G connectivity on smartphones, tablets, laptops, and hotspots while maintaining complete control over your costs.
Great
Based on 27945 reviews on
Verified
Verified review
This user has been identified as a buyer
Extremely easy to setup with app…
Extremely easy to setup with app download on iPhone 15, 1,2,3 and already set to go. Very good speed in Japan-Osaka>Nara>Kyoko>Okinawa>Tokyo October, 2025. I am super happy with Ubiji e-Sim.
Happy customer, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
spotty reception for Ecuador
Ubigi had good guides on how to connect and installing the e-sim was seamless. However when we landed in Ecuador the e-sim took a while to register and start working. Outside of the main city our reception was very spotty. even in large towns on major highways there was very unreliable service.
In Quito the reception and connection was great,
customer, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Much cheaper than roaming with my…
Much cheaper than roaming with my telco, and works reliably everywhere.
Spencer, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Overall great experience
Overall great experience, not able to use data in Macau though
Chris, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Good quick connectivity and…
Good quick connectivity and installation of esim
Balbir Singh, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Excellent coverage and great price
Excellent coverage and great price. Exactly what we needed.
customer, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
We travelled extensively through many…
We travelled extensively through many parts of Japan and never had at any time a problem with the internet connections, be it in Osaka, Kanazawa, Kurobe Gorge, Nagano, etc. etc. HOWEVER, if one is deep in an underground station there is no more reception and with these huge stations and masses of people rushing about orientation can be pretty frustrating.
Markus Pabst, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Data was available at all time without…
Data was available at all time without failure! That made my trip very enjoyable. I was able to persuade my brother to use Ubigi and in return, he was able to "hook" another friend to Ubigi!
Ngoc Nguyen, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Smooth
Could activate and use without any problems. Recommends.
customer, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Great!
Great!! Loved it! Will use again 😊
customer, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Reliable Sim in Japan
The registration, sign up was very easy and connected right away when we got to Japan. Connectivity was very good but one GB was too small for my one month trip. I use this only when I need and use hotel's wifi at night. But I forgot to turn off ubigi one day and used up one third of one GB. I wish Ubigi sells something between 1 GB and 10? GB. Then I don't have to top up half way. But it's been very good product. Thanks Ubigi!
Happy customer, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Easy to install and monitor!
Easy to install and monitor!
customer, 02 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Good connection for most uses
Good connection for most uses outside of the hotel and public wifi sites. The setup is a little murky, hence the loss of one star. Ubigi needs to provide more specific instructions for the latest IOS 26, including how to return to the original settings after returning from a trip. I was able to get the settings right and then restore them only after some trial and error.
Marc, 01 Nov 2025
Verified
Verified review
This user has been identified as a buyer
Setting the Ubigi plan too
Setting the Ubigi plan too
Complecate
Sae Park, 01 Nov 2025
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 if a device is ready for eSIM?
Check eSIM compatibility
Smartphones & Cellular Tablets:
Dial (*#06#). If an EID number shows, your device supports eSIM!
Laptops (Windows 10/11):
Open your flyout (bottom-right corner). If Cellular settings are visible, your laptop supports eSIM!
Check Carrier Unlock
On iOS:
Go to Settings > General > About, scroll to Carrier Lock. If it says "No SIM restrictions", your device is unlocked!
On Android:
Go to Settings > Network & Internet > Mobile Network, turn off Auto network selection. If you see multiple available networks, your device is unlocked! If only one appears, or you get an error, it may be locked.
You already have an eSIM in your cart.
Each order can only include one eSIM data plan.
Current plan: •
If you choose to add a new one, the current plan will be removed. What would you like to do?
Check eSIM compatibility
Check Carrier Unlock