Sat nav with dash cam [Merged]

I think they are not as good as it would seem,to catch EVERYTHING that goes on in the road ahead dash cams are fitted in the same position a rear view mirror in a car is,top centre of the windscreen…having a sat nav here wouldn’t not be much use!
My sat nav sits in the bottom right hand corner of the windscreen if you positioned a dash cam in the same place it would not pick up dozy Doris after she pulls out of a side street on your left in your path and you have no time to react,deeming the dash cam useless.

That’s just my thoughts of the combined sat nav/dash cam units.