The main features that differentiate virtual reality (VR) from augmented reality (AR) include their immersive qualities and user interaction. VR creates a fully immersive environment, disconnecting users from the real world and allowing them to interact with a computer-generated setting. In contrast, AR overlays digital elements onto the real world, enhancing the user's perception of their environment. VR typically requires specialized hardware such as headsets, while AR can often be accessed via common devices like smartphones. This fundamental difference in immersion and technology defines their unique applications in gaming, education, and training.