Should you buy your Ubigi eSIM data plan before traveling, or when you arrive?
Either is possible! You can purchase your Ubigi data plan right before you leave or when you arrive at your destination, whichever is most convenient for you. Thanks to the SmartStart feature, the validity period of your data plan starts automatically upon arrival in a covered area, ensuring you do not lose any days before your travel.
Getting started with SmartStart is easy! 🚀 Upon arrival, simply switch on your Ubigi line in your mobile settings—your data plan will activate automatically, and its validity will begin.
If you have not purchased a plan before leaving, you can buy your data plan when you arrive at your destination and it will activate immediately. Good to know: Even after you have used up all your data allowance or you have no Wi-Fi, you can still recharge from the UBIGI app anywhere in the world and check data usage.
Note: We recommend installing your Ubigi eSIM on your device before you travel. Internet connectivity is required to download the eSIM profile on your device. (For Android users, you can only install new eSIM profiles while connected to Wi-Fi).
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 29022 reviews on
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I got uninterrupted hassle free…
I got uninterrupted hassle free connectivity.
customer, 26 Nov 2025
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Easy and quick to use.
Easy and quick to use.
Nathaniel, 26 Nov 2025
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It worked from the beginning when being…
It worked from the beginning when being in the contracted region.
Never has any outages, very happy.
Thorsten Nedderhut, 26 Nov 2025
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I recently completed a 10 day trip to Japan
I recently completed a 10 day trip to Tokyo, Osaka and Kyoto during which time I used Ubigi eSIM.
The eSIM worked flawlesslessly with no issues at any of those places, including a trip that I made to Hakone and Mt. Fuji. It was my first time using an eSIM, and to be honest I was a bit unsure (before the purchase) on how it would work, let alone how to even set it up on my iPhone.
I'm so pleased that I chose Ubigi - the set up was simple and straightforward, and I knew exactly how much data I was using by simply looking it up on the Ubigi App. Their data plans were somewhat limited and maybe slightly expensive compared to others providers, but they claim to be using Japan's best network to provide 5G services.
Overall I would highly recommend Ubigi.
First time Ubigi eSIM user, 26 Nov 2025
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This is my second time using Ubigi…
This is my second time using Ubigi while in Tokyo. Always had connection, and have had zero issues either time! Easy to turn on and use once landing in Tokyo.
Quinn, 26 Nov 2025
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It works
It works! Easy to install
Walter, 26 Nov 2025
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user friendly
user friendly
KTcustomer, 26 Nov 2025
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Top!
Worked like a charm
Giulia, 26 Nov 2025
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Good
Good. No problem.
customer, 26 Nov 2025
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Click and go!
Really easy to set-up. Connection was great in Japan.
ARLENE C., 26 Nov 2025
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Great app
Worked without any issues when moving to different countries Easy to install
Don, 26 Nov 2025
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Perfect !
Perfect !
It works perfectly !
You can buy it without hesitation ;)
Mr Olivier Delefortrie, 26 Nov 2025
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Great eSIM!
Good coverage for Japan and no issues!
customer, 26 Nov 2025
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Great service
Great service! Used the Asia regional plan so I could use my data in the multiple countries I was in. Would use again for future vacations overseas!
John, 26 Nov 2025
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Great connection!
Great connection!
customer, 25 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.
If you choose to add a new one, the current plan will be removed. What would you like to do?