The audio configuration of iPhone 12 has two speakers and three microphones. In fact, the Android phones with high scores are all dual speakers, some of which are 1.0cc large speakers. Although they are not small, they are indeed more advantageous. The iPhone 12 obviously has no room to amplify the sound cavity, mainly because it recovers many scores on the recording.
Dxomark mainly tests the external playback and recording effects of mobile phones. Someone asked why not test the HiFi sound quality of the earphones, because the earphones are also involved. Obviously, the reference is not high.