While smartphones can play music, they're rarely optimised for genuinely high-quality audio playback - built-in DACs and amplification stages are typically basic, and storage is shared with everything else on the device. A dedicated digital audio player solves this by focusing entirely on music, with higher-quality internal components, dedicated storage, and support for high-resolution file formats that smartphones often can't fully utilise.

These players are particularly popular with headphone and in-ear monitor enthusiasts, who benefit from the cleaner power delivery and lower noise floor a dedicated player provides compared with a phone's headphone output or a basic Bluetooth connection. Many models also support expandable storage via memory card, letting you carry a substantial high-resolution music library with you.

If you're serious about portable sound quality and want to get the most out of a good pair of headphones, a dedicated digital audio player offers a genuine step up over listening through a standard smartphone.