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All models except the S21 FE utilize a second-generation ultrasonic in-screen fingerprint sensor with the latter opting for an optical in-screen system instead. The S21 Ultra is also now able to use 120 Hz at 1440p unlike its predecessor (which was limited to 120 Hz at only 1080p).
Screen protectors have been known to interfere with the operation of some touchscreens. [4] Also, an existing oleophobic coating of a touchscreen will be covered, although some tempered glass screen protectors come with their own oleophobic coating. On some devices, the thickness of screen protectors can affect the look and feel of the device.
All models incorporate an ultrasonic in-screen fingerprint sensor. The Samsung Galaxy S23, S23+, and S23 Ultra are powered by the Qualcomm Snapdragon 8 Gen 2 for Galaxy chip, which includes an Octa-Core CPU, an Adreno 740 GPU, and a Qualcomm X10 modem for connectivity.
Samsung advised that the "special protective layer" that coats the screen must not be removed, as doing so may cause damage to the screen. Concerns were raised that consumers may mistake it for a pre-installed screen protector without proper advisories: retail units of the Galaxy Fold did contain a disclaimer.
The S22 Ultra retains its predecessor's 108 MP sensor with 12-bit HDR. It also has two 10 MP telephoto sensors with 3x and 10x optical zoom as well as a 12 MP ultrawide sensor. The front-facing camera uses a 10 MP sensor on the S22 and S22+, and a 40 MP sensor on the S22 Ultra. The Galaxy S22 series can record HDR10+ video and support HEIF. [6]
Samsung Galaxy S21: ... S20 Ultra utilizes an ultrasonic in-screen fingerprint sensor while the S20 FE utilizes a more traditional optical in-screen fingerprint sensor.
The fingerprint scanner had a security flaw that allowed anyone to unlock the phone with a silicone screen protector, which also affected the Note 10. [33] Samsung rolled out a patch to fix this problem on 23 October 2019. [ 34 ]
The Galaxy Z Fold 3 has two screens: its external cover screen which is a 6.23-inch 120 Hz display, and its foldable inner screen which is a 7.6-inch 120 Hz display featuring support for the S Pen Pro and the S Pen Fold Edition; both of which feature support for variable refresh rate to help maximize power efficiency.
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