Apple has added a new feature in iphone 6s which is 3d touch i.e. The screen of iphone 6s calculates the pressure applied on it The sound quality is improved.If we come to style and design of this iphone the size and dimensions is approximately same as that of iphone 6.But the feature is increased as comapred to iphone 6.Its cost is about 40000 for 16Gb
47000 for 32Gb
But the main issue is that this iphone 6s has battery backup less than iphone 6 i.e. Iphone 6 has battery of 1800 Mah and iphone 6s has 1750Mah
Overall this Smart phone is good for you