Check if your eSIM profile is installed on your device.
Check eSIM profile activation
Check if your eSIM profile is activated on your device.
Apply data to eSIM profile
Ensure data is applied to your Ubigi eSIM profile.
Check APN configuration
Ensure that the APN is correctly set for your Ubigi connectivty.
Check network display
Check the network status for your Ubigi connectivity.
Final checks!
Check account creation and Internet access.
Now ensure that the Data roaming option is activated on your device.
Important: if you have carefully followed previous steps, mobile data must applied to your Ubigi eSIM profile (and NOT to your physical SIM card if you have one). This means that you won’t have extra roaming costs as only Ubigi rates will be applied while using the Ubigi cellular connectivity. In any case, always ensure that mobile data is applied to your Ubigi eSIM profile to avoid extra roaming costs while abroad.
Once you made sure you have applied mobile data to your Ubigi eSIM profile, go to: Settings > Connections > Mobile Networks > Activate data roaming.
In the same screen, select Access Point Names in order to check if the APN (Access Point Name) is set:
The APN is normally set automatically: mobiledata or mbb will appear in the list. In this case, you can go to the next step.
In case you do not see mobiledata nor mbb APNs, please follow these instructions to set the APN correctly. Once you created and selected the APN, you can go to the next step.
Great
Based on 29481 reviews on
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Easy
Easy, cheap and efficient!
customer, 07 Dec 2025
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good prepare
How to prepare before trip, was good explained, so that I could start to use eSim just after arrival.
Maki, 07 Dec 2025
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Got the BestAsia eSim for Japan and South Korea
Got the BestAsia eSim for Japan and South Korea, easy to buy and activated on the day without any hassle. Worked fantastic and notifications before data was exhausted. Will surely recommend, value for money as well.
Imran Shaikh, 07 Dec 2025
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Great e-sim
Everything I needed during my Japan trip, coverage was great.
Milan, 07 Dec 2025
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Easy to use
Easy to use, and it works!
Gustav, 07 Dec 2025
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Its was very good 👍
Its was very good 👍
customer, 07 Dec 2025
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Amazing price and great network…
Amazing price and great network coverage. Well done !!
customer, 07 Dec 2025
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The best
Vert good expérience. Perfect
Ali, 07 Dec 2025
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Works perfectly, using it for a second time in Japan.
Works perfectly, using it for a second time in Japan.
Ta Kz, 07 Dec 2025
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The only eSIM I could find for New Caledonia
Works very well
Ilya Isakovich, 07 Dec 2025
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Great Service with No Issues
We did not experience any issues while in Japan. Additionally, the cost was very reasonable and easy to obtain.
Shelley, 07 Dec 2025
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Super for a travel to Japan
Super for a travel to Japan ! We always had a good connection.
We have activated the e-sim before our arrival and when arriving it was working well.
For a month of travel, I think the 21Go is too much because all hotels had a wifi and we only used the data to use Google Maps
Mme PAL Emeline, 07 Dec 2025
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Worked perfectly!
Worked perfectly! Never had an issue with maps, websites, or my park apps for Universal and Disneyland loading or processing reservations. I will definitely use again on my next trip to Japan, and I will absolutely recommend Ubigi to everyone I know who is traveling as well.
Heidi, 07 Dec 2025
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Ease of purchase and activation
Ease of purchase and activation
Rafael Talmon, 07 Dec 2025
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ease of setting up
Ease of installation and getting connected.
customer, 07 Dec 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?