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Galaxy Z Fold 4 may come with dual in-display fingerprint scanner

12 October 2021 1

Samsung is rumored to be working on implementing in-display fingerprint sensors on foldable devices for a long time. It has stuck with traditional optical fingerprint sensors, presumably due to technical limitations. A fresh patent application has surfaced suggesting that we are closer than ever to seeing a Samsung foldable with an under-display fingerprint scanner.

The patent application was submitted with the World Intellectual Patent Office (WIPO) earlier this year. It reveals that with the Galaxy Z Fold 4, we might see a double-sided fingerprint scanner. The approach will allow users to unlock the foldable using their fingers regardless of it being in folded or unfolded state.


The fingerprint scanner is said to sit between the cover and main displays. The specific placement is on the bottom left half of the display as can be seen in the patent application. There is a small-sized printed circuit board aka PCB between the sensors which is eventually connected to the main PCB.

It is currently unknown whether Samsung is planning to use an optical or ultrasonic in-display fingerprint scanner. Another important thing to note is that all of these details are purely based on a patent application. We know that patents do not always turn into a reality. Even if it does, there is no surety if it will actually happen with the next-gen foldable. Nevertheless, we will keep you posted on all the latest developments.

The Samsung Galaxy Z Fold 4 isn't still available. To be notified when it becomse available click here.

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Galaxy Z Fold 4 may come with dual in-display fingerprint scanner
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