SIHOO Doro C300 Pro 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.

SIHOO Doro C300 Pro

SIHOO

SIHOO Doro C300 Pro

$789.99 – $839.99

VS
Herman Miller Cosm Mid Back

Herman Miller

Herman Miller Cosm Mid Back

$2,030

9 years

longer warranty on Herman Miller Cosm Mid Back than SIHOO Doro C300 Pro (official terms)

Differences at a glance

SIHOO Doro C300 ProHerman Miller Cosm Mid Back
Price
$789.99 – $839.99$2,030
Seat height
46–56.7 cm14.875–21 in
Seat depth
16.81–17.76 in (≈ 42.7-45.1 cm)15.5 in
Load capacity
330 lb (≈ 150 kg)350 lb
Warranty
3 years12 years

Questions

Which is cheaper, the SIHOO Doro C300 Pro or the Herman Miller Cosm Mid Back?

The SIHOO Doro C300 Pro is cheaper to start: $789.99 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 Pro.

SIHOO Doro C300 Pro: specs, reviews, where to buy →Herman Miller Cosm Mid Back: specs, reviews, where to buy →

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