The main differences between 9D VR cinema and 5D/7D/8D cinema are reflected in the following aspects:

1. Technical foundation and immersion:

9D VR cinema: Based on VR (virtual reality) technology, it provides a 720-degree full virtual environment, and realizes highly immersive interactive visual simulation through head sensors and computer graphics processing. The experiencer explores the surrounding environment through head movement to achieve a high sense of presence.

5D/7D/8D cinema: These cinemas mainly add dynamic seats and special environmental effects such as wind, rain, thunder, lightning, etc., based on 3D stereoscopic effects to enhance the audience's immersion. 5D cinema allows the audience to achieve a sense of reality from hearing, vision, and touch, while 7D cinema further increases interactivity, allowing the audience to interact with the film content.

2. Interactivity:

9D VR cinema: provides stronger interactivity. The experiencer can aim through head movements and use the buttons on the handle to interact such as shooting, achieving the ideal effect of free control and no sense of delay.

5D/7D/8D Cinema: Although it also provides a certain degree of interactivity, such as 7D cinema allowing the audience to fight monsters in the film, this interactivity is usually not as direct and immersive as 9D VR cinema.

3. Movie-watching experience:
9D VR cinema: It provides a richer and more realistic sensory experience. The audience can "touch" the objects in the movie and "encounter" scenes such as wind, rain, thunder, and lightning, achieving a perfect fusion of vision, hearing, smell, touch, and movement.

5D/7D/8D Cinema: Although it also provides a multi-sensory experience, compared with 9D VR cinema, its experience may be more limited, mainly through seat vibration, water spray, wind, smoke, and other special effects to interact with the movie content.

4. Equipment and environment:
9D VR Cinema: It is usually equipped with VR headsets and dynamic cabins, and its appearance is similar to that of a space capsule, providing more attractive visual effects and a dynamic experience.

5D/7D/8D cinema: The equipment and environment settings are relatively traditional, mainly relying on seat special effects and environmental special effects equipment, such as hydraulic or pneumatic bases to simulate movements, and various ecological special effects equipment to simulate wind, rain, and other effects.

In summary, 9D VR cinema is more advanced and immersive than 5D/7D/8D cinema in terms of technology, interactivity, viewing experience, and equipment environment.