A product vision is a description of the future state of the product and what problems it tries to solve or what ambitions it tries to fulfill. The most important information to communicate in a product vision is how life/work will improve by using this solution. This information captures the value proposition and the benefit hypothesis of the product, which reflect the needs and expectations of the customers and the stakeholders. This information also inspires and motivates the people who work on the product, as well as the potential users of the product. This information sets the direction and the purpose of the product, and guides the development and delivery of the features and capabilities.
References:
* Vision - Scaled Agile Framework
* Solution Vision - Scaled Agile Framework
* Product Vision | Agile Product Management