The difference between these two products lies in their design and use. The cologne is a solution dosed between 4% to 6% in gasoline concentration. Eau de toilette is scented water that concentrates 7% to 12% of gasoline.
The cologne with its alcohol-based concentration is a little less and evaporates a little faster than the eau de toilette. But cologne is much easier to use and remains a very affordable product at price and completion.