The specs of iPhone 6s has been revealed on the end of 2014, it is believe that it will be rolled out on Septemter 2015. More RAM is also something expected as Apple debuted the iPad Air 2 with 2GB of RAM, up from 1GB. Many thought the iPhone 6 would see 2GB of RAM, but it did not, leaving the possibility open for the iPhone 6s.

The 4.7-inch iPhone 6s and the 5.5-inch iPhone 6s Plus will also continue to offer features that have become integral to the iPhone, including Touch ID support, NFC for Apple Pay, 802.11ac Wi-Fi capabilities, and LTE Advanced.

According to KGI Securities Analyst Kuo Ming-chi, iPhone 6s will feature an upgraded Touch ID module with reduced reading errors to enhance the Apple Pay experience.

Moreover, rumors has it that the new iPhone 6s could incorporate the "Force Touch" haptic feedback system first introduced with the Apple Watch, which is able to distinguish between different gestures like a light tap and a harder press.