Roberto Mancini's expensively-assembled side currently sit top of the table, five points clear after 13 games.
Yet former Manchester United favourite Beckham insists his old side will overhaul their neighbours.
"I don't think Manchester City have a chance," the former England captain, currently in Indonesia for the Los Angeles Galaxy's Asian tour, reportedly told local media.
"This season they have got a good team and have some good players, but Manchester United have more experience and know how to win a championship."
Beckham, linked with a move to Paris St Germain as he considers his future, admitted he has "a big decision to make" but would not be drawn on his plans.