Which of these chairs actually lets you adjust seat depth?
Based on the listings, only the Branch Ergonomic Chair Pro explicitly states seat depth as one of its adjustable points. The other three chairs' titles focus on armrests, lumbar support, or recline instead, so if depth adjustment is a hard requirement, that's the one whose listing supports it directly.
Is seat depth adjustment necessary for everyone?
Not necessarily — it matters most for people notably shorter or taller than average, where a fixed seat pan can leave a gap behind the knees or press into them. If your height is close to average, chairs without stated depth adjustment, like the HON or Duramont, may still fit fine.
Does a higher number of armrest dimensions (4D vs 5D) matter in practice?
It generally means more axes of movement — height, width, depth, and pivot for 4D, with an added inward/outward angle for 5D. Whether that translates to a better fit depends on your desk setup and typing posture, which isn't something the listing titles can confirm.
Why does only one chair list a weight and height capacity?
Manufacturers vary in how much specification detail they put in a title. The Steelcase listing states up to 150 kg and 190 cm explicitly; the other three don't include this in their titles, which means it's not something we can compare across all four confidently.
Should I pick based on lumbar support alone?
Lumbar support is mentioned in three of the four listings — the Steelcase's title doesn't call it out by name, though it does mention seating comfort. Lumbar support alone isn't a strong differentiator here since most of the group claims it; adjustability range and seat depth are the more distinguishing factors.
Is the HON Ignition 2.0 less capable because its listing is simpler?
A shorter feature list in the title doesn't necessarily mean fewer features exist, only that the listing emphasizes fewer of them. Based strictly on what's stated, it claims lumbar support and adjustable arms, which is a narrower set of stated adjustments than the Branch or Steelcase listings.