Herman Miller Cosm Low Back vs KI Signia

Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.

Herman Miller

Herman Miller Cosm Low Back

$1,345 – $1,820

KI Signia

$930 – $1,076

$415

lower starting price for KI Signia than Herman Miller Cosm Low Back at the brand stores

Differences at a glance

Herman Miller Cosm Low BackKI Signia

Price: $1,345 – $1,820$930 – $1,076
Seat height: 14.8–21.4 in (37.6–54.4 cm)17.5–22 in (44.5–55.9 cm)
Seat depth: 15.9 in (40.4 cm)17–20 in (43.2–50.8 cm)
Arms: Leaf Arms; Height-Adjustable Arms; Fixed Arms; No Arms; Arm Height: 7.3–11.7"Armless, fixed reverse cantilever conference arms, 1D adjustable arms, or 4D adjustable arms
Warranty: 12-year, 3-shift warranty, with limited exceptionsLifetime

Which is cheaper, the Herman Miller Cosm Low Back or the KI Signia?

The KI Signia is cheaper to start: $930 versus $1,345 for the Herman Miller Cosm Low Back at the brand stores (Oct 2026).