One of the highlights in the Snapdragon 855 will be the on-screen fingerprint scanner that improves upon the two dimensional unlock system in its predecessor. Unlike the Snapdragon 845 which essentially takes a photo of the finger and matches to a saved image, the latest chipset will use Qualcomm 3D Sonic Senor to unlock smartphones. The sonic waves bounce of the finger, even the tiny pores and ridges and creates a 3D map, in turn facilitating unlocking a smartphone even if there is some water or grease on your finger. This, in turn will make the fingerprint scanner more secure and difficult to hack the sensor. While it is up to the smartphone makers to include this feature, it has been announced that the Samsung Galaxy S10 will be the first phone among other upcoming flagships to include this feature.