No, the eSIM itself does not drain the battery of your mobile device. It consumes the same as a SIM card when using cellular data. However, being connected to two networks uses more energy than being connected to one network. The same goes for using your eSIM (or SIM) for sharing personal Hotspot, this would naturally drain your battery.
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 33578 reviews on
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Easy e sim and excellent 5 G coverage…
Easy e sim and excellent 5 G coverage on France.
Tim - Peterborough , 01 Apr 2026
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It didn't let me down when I needed it…
It didn't let me down when I needed it to travel across seoul korea.
Antiphobic, 01 Apr 2026
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Till now in japan Ubigi was more than…
Till now in japan Ubigi was more than perfect. The connection never fails or lost. To be honest i didn't expected that. So thank you very much for this wonderful experience. My friends planning to come to Japan definitely i will recommend you for them 👍👍
customer, 01 Apr 2026
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Very fast connection everywhere in Japan
Very fast connection everywhere in Japan (Tokyo, Kyoto)
Massimiliano Falcone, 01 Apr 2026
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Great company to get your eSIM from
Great company to get your eSIM from. This is the second time I've used them and found them to be excellent. Great choice of eSIMs with varying costs and data limits to suit most budgets. They work well and I will continue ue to use Ubigi when travelling.
Robert Cohen, 01 Apr 2026
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Ubigi Review
I highly recommend Ubigi
Simo MHB, 01 Apr 2026
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I had an excellent experience using…
I had an excellent experience using Ubigi eSIM in Egypt. The setup was quick and hassle-free, and the connection was stable from the moment I arrived. Internet speed was consistently good, whether I was navigating in the city, using maps, or working online. Coverage was reliable in both urban areas and during travel between cities, which made a big difference.
What I especially liked was not having to deal with local SIM cards or paperwork—everything worked seamlessly right from my phone. Overall, Ubigi provided a convenient and dependable solution for staying connected in Egypt, and I would definitely recommend it to other travelers.
Evgeny, 01 Apr 2026
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So far after one week perfect connection
So far after one week perfect connection
James, 01 Apr 2026
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Easy sign up & navigation
Easy sign up & navigation. Service has been excellent so far during my travels in Japan.
DeAnne Hinson, 01 Apr 2026
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Good experience with Ubigi eSIM.
After my experiences trying to install other services, Ubigi was really easy and provided decent coverage in Japan. I will definitely use them again.
Cathal Ireland, 01 Apr 2026
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Easy and fast
Easy and fast
AnDi, 01 Apr 2026
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Quick and effective customer service
Quick and effective customer service
customer, 01 Apr 2026
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Reliable
Ubigi eSim was easy to install and very reliable whilst working and holidaying in Japan.
customer, 01 Apr 2026
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Easy to use
Easy to use. Sometimes having some difficulties to have a good connection.
Mang, 01 Apr 2026
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Setting up was easy
Setting up was easy. Using it is super easy. Cost is very effective.
Lam Thai, 01 Apr 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