Pokemaps is like a camera - it was so advanced, it was like a massive camera was watching the whole of the Kalos region, you could search up where a location was and it'd show what's going on there. It was super handy, for etc, if you were a police and there was a robbery going on in the Lumiose Bank, police could grab their Pokedex and zoom into the Lumiose Bank to see exactly what was happening at that exact time, or etc, if you need to go to a shop but not sure whether it's open or closed, you could zoom right into it to see if it was closed.
The Pokedex is so advanced now. It is like a super tablet/iPad, yet has all the functions as a normal Pokedex still but also like a tablet/iPad. You can download apps, Pokestore-Books, (Pokestore is like a store for apps, games and books, Pokestore-books, like Ebooks), games, you can have a calendar on it, and Poketube (Pokemon version of Youtube) and a calculator, an alarm clock - A Pokedex is so advanced now. However, there is one drawback - say if you wanted to search up Kanto Pokemon in the Pokedex function of your Pokedex, you need to go to Kanto and have your Pokedex updated with the Professor in the Kanto region, same for every other region. But if a Pokemon is in two different regions or more, you will have them. You only need to update your Pokedex in other regions if that region has any region exclusive Pokemon - and if you have a Pokemon not in your Pokedex because it's from another region that you haven't updated your Pokedex for, it will still register them in your Dex.