Device Info Droid, is the perfect application to fully understand the hardware of your phone, you can know its characteristics, Operating System, Camera, Bluetooth, Red, Screen, Processor, know what sensors your device has, among many other things.
Droid Device Information, this application allows you to know all the characteristics of the hardware of your phone, characteristics such as Operating System, Sensors, Processor, Battery, Network, Cameras, Internal and external storage, Bluetooth, Display, Additional features, installed applications, both as user or system, etc.