Windows Mobile 2003, originally codenamed "Ozone",[2] is a member of the Windows Mobile family of mobile operating systems, released on June 23, 2003, succeeding Pocket PC 2002 and Smartphone 2002.

A pictures application with viewing, cropping, e-mail, and beaming support was added.

Multimedia improvements included MIDI file support as ringtones in Phone Edition and Windows Media Player 9.0 with streaming optimization.

A puzzle game titled Jawbreaker was among the pre-installed programs.

Other features/built-in applications included:[3] This operating-system-related article is a stub.