The difference I think, is CS has headless mode, It also has closed in gear covers and a much better higher and wider landing gear stance. Some say the CS flies poorly in wind.....more so than the X5c. The CS is geared toward getting better video. It also comes in three colors. Costs about five bucks more too.could anyone tell me what the difference are between the SYMA X5CS-1 and SYMA X5C-1 please?