Is Iphone 6s worth buying in 2018?

The original iPhone launched in 2007.

If we look at the world of smartphone evolution over the last decade,we'll find it awkward to go back and use a 9-10 year old smartphone.Leave the whole world and just consider the iPhone:It has evolved so much that we cannot imagine to use the 4 year old iPhone 6 today.
So in this world of technology that is developing at this rapid speed,I'll be answering the question:Is it worth buying the iPhone 6s in 2018?Keep reading............

 iPhone 6s

iPhone 6s:Gold

 Before coming to the main question,let us