There is no difference in day to day life..But if you still want comparison helioG90T might be little better in performance ..but i feel Snapdragon 720 g might hav long life..helio g90t may degrade or start lagging after 1 or 2 years..but everyone knows Snapdragon processors can work properly for 3 4 yearsWhich processor is better SD720G or Helio G90T?