Rumor has it that the next generation of iPhone will use a pressure-sensing technology named Force Touch which only exclusive to iPhone 6s Plus.
According to Taiwan's Economic Daily News, the pressure-sensing Force Touch technology could be used only in iPhone 6s Plus. The report said that Taiwanese manufacturer TRK will be responsible for supplying Apple with the Force Touch sensors, while it had not mentioned about iPhone 6s which led to speculation that the technology could be reserved for iPhone 6s Plus.
Many reports have claimed that Force Touch will be applied in iPhone 6s and iPhone 6s Plus since the beginning of this year. In January this year, TechNews Taiwan reported that iPhone 6s will gain Force Touch and 2GB of RAM. Others claimed in March that Apple's next-generation iPhones will feature Force Touch but the dual-lean camera system is not on the list.
The Wall Street Journal also said in March that Force Touch will be used in Apple's next generation of iPhone and a pink color option will be introduced later. So far, Force Touch has been built into the upcoming Apple Watch and 12-inch Retina MacBook, and it allows devices to distinguish a light tap and a hard press, which is available for new gestures and actions depending on the pressure applied.
Apple features Optical Image Stabilization (OIS) and landscape mode specially for iPhone 6 Plus. The higher cost of Force Touch sensors could be one of the reasons why Apple would limit the technology to the more expensive iPhone 6s Plus.