I have done some research on the Capacitive pressure sensors on the new iPhone 6S and 6S+ and was looking for more information on the technology. I have done some reading from google searches and through the iOS developers page. Does anyone here have any experience in engineering and could explain as simply as possible how exactly the technology in the iPhone works. I understand the (2) different pressure methods that the user can use to open up a shortcut in the app, but I want to know HOW the iPhone recognizes the force of the touch. Is it strictly a Capacitive "receptor" if you will that measures the amount of electricity from your finger, OR does the iPhone have the capability to detect physical pushing of an object to the screen. I know the difference between the Resistive touch screen's on the older technology (needed stylus) or to physically push down on the screen HARD to recognize the input. My question is a bit difficult so I will try to describe it as simply as possible, Does the iPhone strictly register touches (peek and pop, press down a bit to peek, press even harder to pop) through ONLY the electric energy from our fingers OR is there other technology beneath the capacitive sensor that will detect physical force (not JUST from Electric current) Not asking if a stylus will work, but rather if the new iPhone's screen is ONLY capable of detecting electric input from your fingers if you will.