When comparing Herman Miller Aeron vs Kneeling Chair, the Slant community recommends Herman Miller Aeron for most people. In the question“What are the best ergonomic computer chairs?” Herman Miller Aeron is ranked 2nd while Kneeling Chair is ranked 6th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro 12 year warranty that covers everything
Pro Mesh is cool (not hot)
Pro Posturefit model promotes better posture
The posturefit add-on provides sacral support that promotes a better upright stance while not reclining, and reduces the need for reclining. This posture is particularly better for computer or desk work. It is important to note that although the posturefit add-on can be removed, it cannot be added to a chair that wasn't built for it.
Pro Can reduce lower back and neck pain
Kneeling chairs reduce low back or neck pain for some people.
Pro Varying leg positions can help restlessness when you need to keep sitting
You can use the chair with your shins on the shin pad, as intended, or use the shin pad as a foot rest for one or both feet. Being able to switch it up can be very helpful if you get restless sitting still very easily, but don't have the option to get up and move around.
Pro Good for forward-leaning tasks
Kneeling chairs make forward-reaching tasks easier.
Pro Encourages upright posture
Kneeling chairs position you with an open hip angle. This eases your hips forward to encourage an upright posture, aligning your back, shoulders and neck.
Cons
Con Default lumbar pad doesn't provide broad support
The default lumbar pad feels like a bar across your back and does not distribute support evenly. The posture fit add-on that does a better job providing broad support is build into the chair and cannot be added to one without it already.
Con Kneeling chairs can be tricky to get in and out of
They're not as intuitive as normal chairs.
Con Research on health benefits is mixed
While some studies have shown these style chairs to be good for maintaining posture, other studies have suggested they may be no better and possibly worse than a well-designed traditional chair. Prolonged usage of the shin pad with both knees (sitting as intended) may lead to decreased circulation to the lower legs.