The About Device link in Android Settings provides basic information like model number and version of your Android device. Apart from that there is no other possibility to get the detailed information about your hardware in your Android device.
“CPU-Z”, one of the wonderful App available in android market that fills this gap by providing detailed information of your device. These information includes details of the Chip, System, Battery and Sensors available on your device
The below are some of the Screen Shots
Download CPU-Z from Google Play Store