In Germany, Saint Nicolaus is filling boots of the nice kids with nuts, oranges and chocolate (or alike) on the morning of December 6th and also doesn’t bring the Christmas gifts.
The Weihnachtsmann (or Santa Claus), however, afaIk, was imported from the US in the last century, where it had evolved from the St. Nicolaus figure.
As I’m from a ‘Chist child’ family, I don’t know if the Weihnachtsmann actually “brings” the presents in the more northern parts.