Instead of the presets arranged in a list that you can choose from and then customize the equalizer by moving the slider after you make your selection, there are now seven preset chips to choose from; once you choose, you can then customize the equalizer. This way, there is more room for the slider and at the bottom of the UI, there is a brief description of the preset chosen.
n the left is the equalizer in One UI 6. On the right, the equalizer in One UI 6.1.1. | Image credit-Android Police
You’ll also note that there are new names for some of the equalizer options such as Smooth, Clear, Bass Boost, Dynamic, and Treble Boost. This should make it easier for the user to understand what kind of audio sound is getting a boost or a reduction based on his settings.