Galaxy S10 always-on display (AOD) Archives

What’s new in Galaxy S10 fingerprint reader?

Instead of scanning your fingerprint using capacitive or optical methods, ultrasonic fingerprint sensor uses sonic pulse waves to find out the 3D structure of your fingerprints.

Similar ultrasonic technology has been used in biomedical imaging in hospitals for decades and saved many lives.

Generally speaking, or technically, the ultrasonic fingerprint reader can get the real 3D info of your fingerprints and therefore it could potentially be far more accurate than the traditional capacitive fingerprint reader.

Do not confuse this in-display ultrasonic fingerprint reader with the in-display optical fingerprint ones (as in a few OnePlus and Vivo phones). The optical fingerprint reader is the slowest one. It is even slower than the traditional capacitive fingerprint reader. And the optical one is the least secure because it is essentially a kind of 2D photo recognition.

For Galaxy S10e, a traditional capacitive fingerprint sensor is mounted on the power button as illustrated in Galaxy S10 layout. The position is at least better than the fingerprint on Galaxy S8 (see Galaxy S8 layout) or S9 (see Galaxy S9 layout).

What are the major limitations of the in-display ultrasonic fingerprint reader on Galaxy S10 and S10+?

Although the in-display ultrasonic fingerprint sensor sounds cool and is actually the most secure (accurate) fingerprint reader, there are some inherent limitations of this new sensor on Galaxy S10:

Many screen protectors will not work nicely with the in-display fingerprint reader. The sonic waves are affected by the air between the screen and screen protector. Therefore the sensor may not function properly even if a small air bubble is trapped by the screen protector.

You need to know where to press your finger.

The matching sensitivity is not rocket science. If Samsung set the sensitivity too high, you may have to press several times. If it is set too low, it will not be secure.

How to register fingerprints for the fingerprinter reader on Galaxy S10?

To use the new fingerprint reader to unlock Galaxy S10, you need to register your fingerprints first.

The procedure of registering (adding) fingerprints is identical for all 4 Galaxy S10 phones. But in this guide, we will use Galaxy S10 for the illustration.

Using Galaxy S10 touchscreen gestures is not an option; it is a requirement if you want to use Galaxy S10, S10+, or S10e.

The good news is that Galaxy S10 touchscreen gestures are similar to those on other smartphones.

This Galaxy S10 how-to guide uses animation to demonstrate how to use seven Galaxy S10 touchscreen gestures. The examples (scenarios) of using these Galaxy S10 touchscreen gestures are also provided.

The touchscreen gestures are identical on Galaxy S10, S10+, S10e, and S10 5G. So, in this guide, Galaxy S10 refers to all four models of Galaxy S10 phones.

What are the seven Galaxy S10 touchscreen gestures?

Unless you attach a keyboard/mouse to Galaxy S10 or use voice commands (e.g., Google Assistant or Bixby Voice), you have to use Galaxy S10 touchscreen gestures to control the screen and interact with the phone in apps.

Galaxy S10 touchscreen gestures refer to how your finger(s) moves on the screen.

The screen (see Galaxy S10 layout) in Galaxy S10 is a touchscreen. When your finger or a capacitive pen touches the screen, it can identify the motion.

The motion pattern can be designed and programmed as a gesture. The system and apps can then perform certain operations as a response to the gesture.

In Galaxy S10, as like in other Android phones, seven touchscreen gestures, tap, double tap, long tap (tap and hold), swipe, drag, pinch, and spread, are fully supported.

Galaxy S10 touchscreen gestures are used by:

The system. Galaxy S10 may use slightly different touchscreen gestures compared to other phones. For example, the navigation gesture is different from that in stock Android.
Individual apps. App developers can assign any functions to any gestures inside the app.

Please note S Pen is for Galaxy Note devices. Galaxy S10 screen will NOT respond to S Pen.

Very often, three of the Galaxy S10 touchscreen gestures were also programmed for some hardware buttons (keys). In this case, we usually refer the gestures as press (instead of tap), double press and long press.

List of Galaxy S10 touchscreen gestures their usages

We will use animations to illustrate what are the 7 Galaxy S10 touchscreen gestures. The examples of using each gesture are followed.

Smartphone touchscreen gestures usually mimic the behaviors of a mouse on a PC. When you use Samsung Dex with Galaxy S10, the mouse can replace these Galaxy S10 touchscreen gestures.

1. Tap gesture (press)

Tap (single tap) is one of the essential Galaxy S10 touchscreen gestures. You cannot survive without it.

The tap gesture, as shown in the animation below, means you touch somewhere (e..g., a button in an app, an app icon in Galaxy S10 home screen, or ) on the screen once, then your finger should move away from the screen

Corresponding to using a mouse, the tap gesture is simply the click.

The response of the tap gesture depends on what was tapped, or where you tapped.

Some example of using tap gesture on Galaxy S10 includes:

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Galaxy S10 always-on display (AOD)

How to use the new fingerprint reader to unlock Galaxy S10, S10+, and S10e?