HiSilicon Kirin 655 Advantages
Higher Frequency (2120MHz vs 1600MHz)
More modern manufacturing process (16nm vs 28nm)
Unisoc SC9863A Advantages
Better graphics card performance FLOPS (0.0704 TFLOPS vs 0.0576 TFLOPS )
Lower TDP (3W vs 5W)
Released 1 years and 11 months late