Redundant pieces? because you don't need any additional hardware to measure water ph or any kind of special camera to see in the dark? 
Seriously though, what modules would you see as redundant? |
Measure water pH?
Night vision?
I'd never use those options unless I was a Navy Seal or something lol.
And what I meant by redundant was like some stupid compass or clock widget.
Why the hell would you need a physical version when you can just download some app for it or something?
The whole idea just seems kinda silly.