Factors to consider while buying Hi-Res Players :
Build Quality - Many modern digital audio players come in a metal chassis that looks cool and offers plenty of protection. This is a much better option than the older plastic versions, as it is more durable.
Storage Options - In terms of storage, more is always better. Most digital audio players come with a certain amount of built-in storage, although this is not always the case. The player must feature at least one SD slot so that users can increase their storage options.
File Formats - The digital audio player you choose should deliver outstanding audio quality. It should also have the ability to recognise and play any lossy, lossless, or high-resolution audio file format. Choose a DAP with the ability to deliver digital audio sampled at up to 384 kHz in standard PCM and wav formats.
Tactile Functions - You should have control over the music and the players for setting up multiple things. Dedicated volume control is a feature you should seek, and the buttons (if any) should also be tactile. This will help you to use the buttons easily.
Streaming - Having local storage and the ability to expand is a blessing but the ability to connect via Wi-Fi and Bluetooth is also an added feature that you should look for in Hi-Res Players.
Compatibility - Flagship Hi-Res Players should offer compatibility and work with both Windows and macOS, so you can transfer music to them regardless of which operating system your machine runs.