Iphone 6s is the first device through which Apple has introduced a new technology called 3d touch, I owned the device and want to appreciate Apple to give a smarter user interface, which you would not find in any Android devices in the market.
Pros.
• Best user interface!
• Now you will have an IOS 9 which is faster than ever than most of the device in the market.
• The camera is awesome and gives best of it, the picture are neither soft nor too crisp as samsung S6 clicks in daylight.
• 4k video
• Apple also gives best quality handsfree and looks awesome!
• The all new Rose_ Gold color.
• slow-mo video is far better than other Android devices.
• Now you would never be complaining about the device bend problem, Apple has now used 7000 series aluminium to fix. So no issues!
Cons.
• I would suggest to buy at least 64 giga byte version because the device records 4k video which shoots 8gb in half an hour, so please look upto it.
• Also you have to buy camera ring to protect the back camera.
• Keep in mind that the device is not water resistant so look upto it. Apple also gives best quality handsfree and looks awesome! The slow-mo video is far better than other Android devices.
• As far as I see the price is high for the device so dont say that it is a budget phone!
Good luck! And thanks for reading