The Fairphone 4 smartphone is equipped with an eSIM.
Thanks to the eSIM, you will be able to use dual SIM cards. It means that the eSIM on Fairphone 4 allows you to immediately connect to another mobile operator without using a physical SIM card.
To activate your eSIM, you need a wireless service carrier which provides you an eSIM profile as well as data plans. eSIM data plans availability may vary depending on country and carrier. Ubigi is one of the carriers that support eSIM for the Fairphone 4, in 200+ destinations, on the 5 continents.
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 44003 reviews on
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Working great in switzerland
Working great in switzerland
Andre, 21 Aug 2026
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easy installation
easy installation
great reception
Kko, 21 Aug 2026
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Worked every time
Worked every time
Janice Thomas, 21 Aug 2026
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Ubigi esim helped my trip a lot
It helped me during my trip so wonderfully. It took me a long time to read and chose the right kind , and understand the instructions before going on the trip. However it was easy to start using after I arrived Shanghai, then EU countries. I bought China for transit time and unlimited Europe for 15 days for visiting France, Spain, and Germany. I spent my travel time with a very comfortable wi-fi condition.
Fumie, 21 Aug 2026
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Reliable & activation only when you join your destination
I used Ubigi for the first time this year in Japan, I faced no issue and that worked properly from my airport arrival to my departure. Network coverage was ok. For a normal usage I recommand 1 Go by day for navigation, translation and restaurant searches. More if you used massively social network.
OC-Team, 21 Aug 2026
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It worked very well
It worked very well. Exactly as we wanted it to work.
Time, 21 Aug 2026
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Malesia & Singapore
Great experience!
customer, 21 Aug 2026
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The app is easy to use and the…
The app is easy to use and the connection is good. The subscription price is reasonable, but I find the extra data a bit pricey.
customer, 21 Aug 2026
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Great impression
It was an excellent experience for my first use. I simply had some bad Network sometimes but overall it was fine. I will definetely recommend it to my colleagues.
Seyni Malan, 21 Aug 2026
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The coverage is excellent
The coverage is excellent. However I will take one star away for the speed. Overall it was good service.
Tim, 21 Aug 2026
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worked very well on my trip to osaka…
worked very well on my trip to osaka japan. good reception and fast.
Klant, 21 Aug 2026
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So easy
I’ve used e-sims before in different countries but using Ubigi e-sim in Japan has been the easiest and glitch free solution. I’ve spent several days in Tokyo and am about to travel inland but I am confident that my communication connection will remain. Big thanks
David Ritchie, 21 Aug 2026
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Good service
Good service
customer, 21 Aug 2026
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Works perfectly well out the gates
Worked perfectly fine when I got off the plane and around most major areas always had at least 3 bars. This is coming from being in LA. When I was in Japan and China using ubigi it was also equally pretty good and decent
customer, 21 Aug 2026
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Super easy
Super easy to buy a plan and apply/use it
customer, 21 Aug 2026
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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?
How to check eSIM compatibility
How to check carrier unlocking