ok ive decided to actually read about this sat nav
samsung processor? absoloute dung, overheats and will eventually melt. samsung are very poor at making computer parts hence theyre only in the bottom price bracket stuff
windows operating system: this is very dodgy as medion and all used to do this and they gave an awful amount of bother crashing, though a good device usually makes this a powerful combination
ok and one other thing to be aware of, lots of units are coming with maps like tom tom, eg sony etc. the reason is that it is made by teleatlas who produce the vast majority of maps, even google map, but the problem is that they are all different versions, navman and tomtom seem to have the most up to date versions, these are more than likely old
if you want a cheap but great unit, my favourite cheapest unit is the f10, its 80 quid in ripspeed though you can prob get it cheaper, faultless maps, good company, reliable unit