Screen : 4.3"TFT, (no touchscreen)
CPU : C4V, same as C4.
DAC : CS4398, same as C4.
Amp : same as C4, or downgraded version C4-R.
Opamp : ADA4075-2, but possibility for difference on a lower priced version.
Misc : 24/192 support (now only wav with bug), dedicated 3,5" Line Out and Headphone Out, TF Card (MicroSD) support, physical buttons (On/Off, Volume +/-, Hold switch), 8Gb (16GB?) storage.
There is a doubt on Jitter reduction capability. The CK4 was initially presented as sporting the same jitter reduction as the C4 (less than 5ps), but the 8Gb model on sale at Taobao is listing a jitter reduction of less than 100ps. This could be the indication of the lower model, with C4-R downgraded amp.
Filetype support : Audio - WAV, FLAC, APE, MP3, MP2, WMA, OGG, AAC.
Video - RM, RMVB, MP4, AVI, FLV, MPE, MPG, DAT, WMV, ASF, 3GP, MOV, VID, VOB, MKV.
Release date : February 27th in China, available on Taobao from March 2nd
Date unknown for export.
Intro price : 8Gb model is sold for 800RMB (120$US) on Taobao as of March 2nd