Deep Color supports 10-bit, 12-bit and 16-bit color bit depths, up from 8-bit, which is the current standard for consumer video... ...A higher color bit depth enables finer gradations between different shades of the same color, for smoother gradients and reduced color banding. If you are playing back 10bit content and seeing banding try go into Android Settings > Screen Resolution > Deep Color > ON (THEN REBOOT) You of course have to be playing 10bit source video content AND have a 10bit capable HDMI connected display panel. If Deep-Color mode is off 10bit (color depth) video content is dithered (reduced) down to 8bit with AMLogic S905x & S912 devices. Yes reduced sharpness will occur on Android media players when you run the graphic user interface at a 4K2K Screen Resolution on a 4K TV and the Android media player itself does the 1080p > 4K upscaling using it's own inferior hardware. Sharper quality 720/1080p picture output from an Android media player will be seen when you use any GUI Resolution of 1080p and then let the TV with its superior 1080p > 4K upscaling hardware do the video processing & upscaling. The major problem is 99% of Android box sellers have not implemented dynamic Auto Resolution switching in their OS's to switch between these 1080p & 4K resolutions, depending on the video resolution being streamed. To provide optimal picture outputs to a 4K TV.