An eSIM profile is the software that you must download to your eSIM-enabled device to access the carrier’s mobile network. It is different from a conventional SIM card that is a physical card inserted into a device and that is removable.
To install the eSIM profile on your device’s embedded eSIM, carriers usually provide one of the following options:
– A QR code (or activation code) that you scan with your device for automatic installation
– Automatic installation of the eSIM profile, either: > via the carrier’s app, or > through a deeplink provided by your eSIM carrier
With Ubigi for example, you just need to follow the step-by- step guide here to install your eSIM profile automatically from the Ubigi app depending on your device.
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 28657 reviews on
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Super easy to activate and has worked…
Super easy to activate and has worked everywhere I have been in Japan.
customer, 17 Nov 2025
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easy to use
easy to use, internet was fast, I bought unlimited data not to worry, but only used 4GB in a week
TURKISH MERT, 17 Nov 2025
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It is really convenient travelling…
It is really convenient travelling across Spain and Andorra, and using UbiGi, with no line problems.
Fauziah, 17 Nov 2025
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Extremely Reliable!
As this was my first time using an e-sim outside of the States, I was worried about how reliable it would be. Turns out there was no need to worry, as the e-sim was functional and fast throughout the entirety of my visit to Japan 😊
Anon, 17 Nov 2025
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I had have 3GB of data and, It was easy to install, Automatically installed, i did not have any issue or problem with connection at all.
I had have 3GB of data and, It was easy to install, Automatically installed, i did not have any issue or problem with connection at all.
customer, 17 Nov 2025
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Great service and overall good…
Great service and overall good connection. Highly recommended!
MARICA, 17 Nov 2025
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Was ok
Was ok, the reception was working everywhere. One thing only was to swap from my sim to Ubigi sim. A bit complicated.
Arleta Nowak, 17 Nov 2025
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Seamless installation and activation.
Seamless installation and activation.
Note I didn’t realise that I needed to deactivate the card before I was in the country of use. My phone went weird on me the day after installing but I guessed what the problem might be and fixed it.
Pesusa, 17 Nov 2025
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Great communication via emails
Great communication via emails. Esim was a little awkward to install due to the way instructions have changed from QR to app installation. My own carrier made it more difficult to install this esim.
Steven, 17 Nov 2025
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Chosing UBIGI forn Japan
Simple. Works always and everywhere in Japan.
French customer, 17 Nov 2025
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Easy to use, great coverage
Easy to use, activated by itself once we landed in Japan. Great coverage. The app gave easy insight on use and how much you have left. Overall a super smoothe experince buying and using. Highly recommend!
Viktor, 17 Nov 2025
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Very reliable service/coverage
Very reliable service/coverage
customer, 17 Nov 2025
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Very easy very friendly
Very easy very friendly
Kertemelidou, 17 Nov 2025
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Just happy with the overall service
Just happy with the overall service
customer, 17 Nov 2025
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data availability!
data availability!
Gianina, 17 Nov 2025
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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