The Passe Navigo is the travel card used by the inhabitants of Paris and the cheapest way of getting around Paris. Travelers can either purchase a Weekly pass or a Monthly pass.
The Passe Navigo can be used on the metro, bus, RER, tram, Montmartrobus, Noctilien and Montmartre funicular. This pass is a contactless smart card that is purchased for 5€ on top of the regular week pass price or monthly pass price and is valid for ten years.
As of September 2015, travellers no longer have to choose the zones they want to travel to, since there is only one Passe Navigo valid for all five zones. This means that visitors will be able to get to Charles de Gaulle Airport, Orly or Disneyland with their Passe Navigo travel card.
These are the disadvantages of getting the Passe Navigo and why the Paris Visite might be more convenient: