The Home button has a 10-pin connector, which is far more than what is presently available for the iPhone 5, and the implementation of several pins in the connector indicates that Apple plans to offer more functionality through the button.
Although the fingerprint reader doesn’t appear located on the button, the fact that there are so many pins in the connector indicate that it could reach the iPhone 5S.
In addition, the cable that connects in the iPhone dock, having the mounting holes designed differently from those available in the iPhone 5.
The power and volume buttons are also pictured, as well as the antenna that connects the smartphone to phone networks, WiFi and the Bluetooth.
The iPhone 5S is expected to be presented on September 10, alongside the iPhone 5C.