Herman Miller Cosm Low Back vs Vitra Physix

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

Vitra

Vitra Physix

From $1,520

7 years

longer warranty on Herman Miller Cosm Low Back than Vitra Physix (official terms)

Differences at a glance

Herman Miller Cosm Low BackVitra Physix

Price: $1,345 – $1,820From $1,520
Seat height: 14.8–21.4 in (37.6–54.4 cm)390–510 mm
Seat depth: 15.9 in (40.4 cm)435 mm
Arms: Leaf Arms; Height-Adjustable Arms; Fixed Arms; No Arms; Arm Height: 7.3–11.7"Flexible frame and armrests in polyamide (deep black or soft grey)
Warranty: 12-year, 3-shift warranty, with limited exceptions5 years

Which is cheaper, the Herman Miller Cosm Low Back or the Vitra Physix?

The Herman Miller Cosm Low Back is cheaper to start: $1,345 versus $1,520 for the Vitra Physix at the brand stores (Oct 2026).

What do owners mention most?

Recline and tilt for the Herman Miller Cosm Low Back, and adjustability for the Vitra Physix, based on review summaries.