SIHOO M18 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.
$1,740.01
lower starting price for SIHOO M18 than Herman Miller Cosm Mid Back at the brand stores
Differences at a glance
Sources
- M18 Classic Ergonomischer Bürostuhl – SIHOO DE official store ↗Checked Oct 16, 2026
- Cosm Mid-Back Chair - Herman Miller Store ↗Checked Oct 17, 2026
- Sihoo M18 Ergonomic Office Chair – Official US Sihoo Store ↗Checked Sep 29, 2026
SIHOO M18Herman Miller Cosm Mid Back
- Price
- $289.99 – $299.99$2,030
- Seat height
- 44–54 cm14.875–21 in
- Seat depth
- 17.91 in (≈ 45.5 cm)15.5 in
- Load capacity
- 330 lb (≈ 150 kg)350 lb
- Warranty
- 3 years12 years
Questions
Which is cheaper, the SIHOO M18 or the Herman Miller Cosm Mid Back?
The SIHOO M18 is cheaper to start: $289.99 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 330 lb for the SIHOO M18.
SIHOO M18: specs, reviews, where to buy →Herman Miller Cosm Mid Back: specs, reviews, where to buy →
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