SIHOO Doro C300 Ultra V2 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.
9 years
longer warranty on Herman Miller Cosm Mid Back than SIHOO Doro C300 Ultra V2 (official terms)
Differences at a glance
Sources
- Doro C300 Ultra V2 Zero‑Gravity Full‑Body Adaptive Ergonomic Chair – UK Sihoo official Shop ↗Checked Oct 13, 2026
- Cosm Mid-Back Chair - Herman Miller Store ↗Checked Oct 17, 2026
- Sihoo Doro C300 Ultra V2 | Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 13, 2026
SIHOO Doro C300 Ultra V2Herman Miller Cosm Mid Back
- Price
- $679.99 – $689.99$2,030
- Seat height
- 47.5–55.5 cm (≈ 18.7-21.9 in)14.875–21 in
- Seat depth
- 16.9–18.5 in (≈ 43-47 cm)15.5 in
- Load capacity
- 330 lb (≈ 150 kg)350 lb
- Warranty
- 3 years (covers manufacturing defects)12 years
Questions
Which is cheaper, the SIHOO Doro C300 Ultra V2 or the Herman Miller Cosm Mid Back?
The SIHOO Doro C300 Ultra V2 is cheaper to start: $679.99 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 Doro C300 Ultra V2.
SIHOO Doro C300 Ultra V2: specs, reviews, where to buy →Herman Miller Cosm Mid Back: specs, reviews, where to buy →
