Wozza, if you are casting your votes based on whether the gadget would "impress the ladies", then I'm afraid you have completely missed the point of the Gadget World Cup.
All these high falluting gadgety things are very difficult for us older people to fiddle about with. If somebody invented catheter bag that lets off an alarm when full up one would be extremely happy and mightily relieved at the same time.
In my day the number one gadget was this
Got me out a number of death defying scraps and was useful as currency in the darker parts of Croydon.