A photo published by Nowhereelse.fr purports to be a photo of the iPhone 5S user guide. The pamphlet displays an iPhone with a gray ring around the Home button. The button, which matches previous descriptions of the much-rumored fingerprint sensor, is labeled as a “Home Button/Touch ID sensor,” suggesting Apple will promote the fingerprint sensor as a means of identification.
To unlock the iPhone with the fingerprint reader, an iPhone 5S user simply clicks and holds their finger/thumb down on the sensor for a few seconds. It is unlikely that the sensor login and passcode could be used in tandem. There will be a preference in the iPhone’s Settings app to disable the sensor.
The description of the process from 9to5Mac would match well with the button being branded as “Touch ID.” Unlocking will be activated by a touch-and-hold of your finger on the Home button.
Apple will officially announce the features of the iPhone 5S, and most likely its budget compadre the iPhone 5C, at today’s event, which is scheduled for 10AM PT/1PM ET.