It depends on the context and the objective of the content.
Reels can be more engaging than posts because they are usually shorter, visually dynamic, and often include music, special effects, and other interactive elements that quickly catch the viewer's eye and keep them coming back.
Even Instagram favors and pushes reel format content over others. Regarding statistics, reels have more engagement than other formats by 67%, and 50% of Instagram users find reels through explore page.
On the other hand, posts offer more space for text, images, and different types of content, which may be better suited for specific purposes, such as conveying detailed information or making a longer-form argument.
Ultimately, both reels and posts have advantages and weaknesses, and the better choice depends on the content's specific goals and target audience.
A well-rounded marketing strategy may include a combination of both reels and posts to reach different goals and engage with a broader audience.