A smarter way to do just about everything.
Now Siri can search a wider range of topics for a wider range of answers. It understands what you say more accurately and delivers your results faster. iOS 9 is smarter in lots of other ways, too — giving you helpful suggestions even before you ask .

http://www.apple.com/iphone/

3D Touch
When you use 3D Touch, your iPhone responds with subtle taps. So not only will you see what a press can do - you’ll feel it

A9 Chip
A9 chip with 64-bit architecture and with M9 motion coprocessor


iOS 9
iOS 9 brings together an elegant and intuitive interface, powerful features, and robust security. Designed to work as beautifully as it looks so you can enjoy everything you do on a device that does everything

http://www.t-mobile.com/cell-phones/apple-iphone-6s-plus.html



This video was edited on Chromebook pixel :
https://youtu.be/0IHVnX-nWQw