Herman Miller Cosm Low Back vs KI Altus

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 Altus

$881 – $1,516

$464

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

Differences at a glance

Herman Miller Cosm Low BackKI Altus

Price: $1,345 – $1,820$881 – $1,516
Seat height: 14.8–21.4 in (37.6–54.4 cm)17–21.75 in (43.2–55.2 cm); 16.25–20.75 in (41.3–52.7 cm)
Seat depth: 15.9 in (40.4 cm)17.25–19.75 in (43.8–50.2 cm); 15.5–18 in (39.4–45.7 cm)
Load capacity: 350 lb (158.8 kg)supports up to 400 pounds
Arms: Leaf Arms; Height-Adjustable Arms; Fixed Arms; No Arms; Arm Height: 7.3–11.7"Adjustable arms, fixed arms, or armless
Warranty: 12-year, 3-shift warranty, with limited exceptionsLifetime

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

The KI Altus is cheaper to start: $881 versus $1,345 for the Herman Miller Cosm Low Back at the brand stores (Oct 2026).

What do owners mention most?

Recline and tilt for the Herman Miller Cosm Low Back, and back support for the KI Altus, based on review summaries.