As the case is with many things in life, when it comes to loudspeakers, size matters. There’s no way around this without breaking the laws of physics. That’s why smartphone speakers can’t match the performance of a dedicated audio system – they’re just too tiny to deliver full, high-fidelity sound.
Still, some smartphones do sound better than others. The Galaxy S9 and recent iPhones, for example, use two speakers in clever arrangements to cover a broader range of the audio spectrum and deliver some stereo separation along the way. The Sony Xperia XZ2 and the Razer Phone use two dedicated, …