A product vision is a long-horizon (3 to 10 year) statement of what a product aspires to become and the world it creates for users. It is distinct from product strategy (the medium-term plan for how to win) and product roadmap (the near-term execution sequence), and used as the directional north for every strategy and roadmap decision underneath it. It is the part of product leadership that should change least frequently and that earns the most influence over how teams behave when nobody is watching.
The shape of a useful product vision: it describes the world the product creates for its users (what becomes possible that wasn't before), not the features the product has. Famous examples that have shaped behavior at scale: Goog...