The Saw movies can be watched in order on the following platforms:
HBO – Saw first premiered on HBO on February 2, 2004. The movie can be found on their streaming service HBO Go and HBO Max.
Netflix – Saw was first released on Netflix on April 7, 2007 and has been several times since then. The movie can be found on their streaming service Netflix.
Prime Video – Saw was released theatrically by Lionsgate on October 26, 2008, but it became available to stream on Prime Video a few months later on November 17th. The movie can be found on their streaming service Prime Video.