Claim: The Xbox One's Kinect device is included optionally.
Evidence: The console optionally included a redesigned Kinect sensor , marketed as the `` Kinect 2.0 '' , providing improved motion tracking and voice recognition for use in its graphical user interface -LRB- GUI -RRB- and games.
Kinect -LRB- codenamed Project Natal during development -RRB- is a line of motion sensing input devices by Microsoft for Xbox 360 and Xbox One video game consoles and Microsoft Windows PCs.
Xbox One is a line of home video game consoles developed by Microsoft.