1a) SSD
    flash Memonry
1bi) It preserves 9.7"LED monitor instead of 13.3"LCD monitor,it is less power-consuming.
     Without harddisk ,it required less power to
  ii)As the flash memonry work faster than SSD,so there will be a shorter startup time when using tablet 
c)wifi stable protable
  USE high speed and stale data trasfer rate