FlexiSpot Soutien Ergonomic Office Chair (C5) vs Herman Miller Cosm Mid Back
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.

FlexiSpot
FlexiSpot Soutien Ergonomic Office Chair (C5)
$249.99 – $279.99
VS
$1,780.01
lower starting price for FlexiSpot Soutien Ergonomic Office Chair (C5) than Herman Miller Cosm Mid Back at the brand stores
Differences at a glance
Sources
- Soutien Ergonomic Office Chair C5 | Flexispot ↗Checked Oct 17, 2026
- Cosm Mid-Back Chair - Herman Miller Store ↗Checked Oct 17, 2026
FlexiSpot Soutien Ergonomic Office Chair (C5)Herman Miller Cosm Mid Back
- Price
- $249.99 – $279.99$2,030
- Seat height
- 17.9–20.9 in14.875–21 in
- Seat depth
- 18.7 in15.5 in
- Load capacity
- 300 lb350 lb
- Warranty
- 5 years12 years
Questions
Which is cheaper, the FlexiSpot Soutien Ergonomic Office Chair (C5) or the Herman Miller Cosm Mid Back?
The FlexiSpot Soutien Ergonomic Office Chair (C5) is cheaper to start: $249.99 versus $2,030 for the Herman Miller Cosm Mid Back at the brand stores (Oct 2026).
Which has a higher weight capacity?
The Herman Miller Cosm Mid Back, rated for 350 lb versus 300 lb for the FlexiSpot Soutien Ergonomic Office Chair (C5).
FlexiSpot Soutien Ergonomic Office Chair (C5): specs, reviews, where to buy →Herman Miller Cosm Mid Back: specs, reviews, where to buy →




