If you download the \"LirumDeviceInfoLite\" system test app, you can see your phone's processor model on the app's home page. Among them, N66AP (iPhone6sPlus) and N71AP (iPhone6s) use Samsung's 14nm process A9 processor, while N66MAP (iPhone6sPlus) and N71MAP (iPhone6s) use TSMC's 16nm process A9 processor.