FiiO X3MK4(M9) is a high-resolution lossless music player. The asymmetry design is totally different from that of smartphones.
The arc edge on the left is as pleasing to the eye as it is delightful to use in the hands, while the absolute concise and straight lines on the right hands the highlight over to the left side.
From top to bottom, the frequently-used buttons of power, volume knob, play/pause, previous/next track are well placed in line. The volume knob design makes all the elements even more integrated by inserting the act shape wheel into the circle section which simulates the radians of thumb. The headphone output ports at the bottom are concentric with the external circular arc.
The touch screen with the integrated lines gives us a very interactive using experience as well as visual enjoyment.
The compact type of processing and assembling for aluminum alloy material creates an overall metallic texture, which is similar to CNC technology. By this way, it can save us cost but still make a product targeting the mid-low end market to come with metallic texture.