I own both this and the Hidizs AP60 MKII, which is on Amazon for $115 when you also buy their $15 earphones and use a coupon ($130 player + $15 earphone - $30 coupon). What do you get for the extra $40? A player with gapless playback, menus and buttons that work as expected, Bluetooth connectivity, ability to be used as a transport, OTG, in general a product that feels finished and not just a work in progress, delivery in a few days. What do you get with the $75 for the D3? Rather decent sound, decent display, a basic player that does everything necessary if you are a song listener. That is that you use random playback and just listen to song after song. The lack of gapless playback won't be noticeable. You do want to make sure that you have the latest firmware to prevent the first few seconds of songs being cut off.