Galaxy Z Fold 4, Flip 4 retain side-key fingerprint sensor

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We’re still a few months away from launching Samsung’s next-gen foldables, but information is slowly coming out regarding new devices. Today, a new report claims that the Galaxy Z Fold 4 and Flip 4 will both come with the same side fingerprint sensor as previous generations.

Business Korea reports that Samsung won’t be using in-display fingerprint sensors on the Galaxy Z Fold 4 or Flip 4 when the two foldables debut later this year. Samsung apparently “considered” using the technology in these new devices, but has since decided to stick with a fingerprint sensor in the power button.

Apparently, Samsung decided to stick with integrating the power button partly for the sake of the user experience, as it allows the device to “naturally recognize fingerprints when opening their screens.

If Samsung had adopted an in-display sensor, the implementation would likely have been similar to a company patent, where two sensors are connected to each other. One appears in the center of the outer display and the other appears on the left side of the inner display, which is at least in the context of the Fold 4. Notably, Vivo apparently plans to use two ultrasonic fingerprint sensors in its upcoming foldable, which is expected to debut next week.

This report also reiterates that Samsung will launch Fold 4 and Flip 4 in the third quarter.

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Although in-display fingerprint sensors are pretty much standard on flagships at this point, and for good reason, that’s only a good thing.

A side-mounted fingerprint sensor only makes too much sense for these form factors. On the Galaxy Z Fold 4, it unlocks the device both closed and open. If Samsung were to switch to an in-screen sensor, there would need to be one sensor on the outside screen and another on the inside to replicate the current experience. Meanwhile, the Flip 4 would suffer even more from a side sensor moving away, as that would mean fully opening the device before unlocking it and losing secure access to Samsung Pay when the phone is closed.

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