Office Star ProGrid vs Herman Miller Cosm High Back

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

Office Star

Office Star ProGrid

$580 – $650

Herman Miller

Herman Miller Cosm High Back

$1,925 – $2,400

$1,345

lower starting price for Office Star ProGrid than Herman Miller Cosm High Back at the brand stores

Differences at a glance

Office Star ProGridHerman Miller Cosm High Back

Price: $580 – $650$1,925 – $2,400
Seat height: 19.5–23 in (50–58 cm)14.8–21.4 in (37.6–54.4 cm)
Seat depth: 19.5” D; Seat Travel: 3.75”15.9 in (40.4 cm)
Arms: Height adjustable arms; Arms Max Inside: 19”; Arms to Floor Min: 25.25”; Arms to Seat Min: 6.5”Leaf Arms; Height-Adjustable Arms; Fixed Arms; No Arms; Arm Height: 7.3–11.7"

Which is cheaper, the Office Star ProGrid or the Herman Miller Cosm High Back?

The Office Star ProGrid is cheaper to start: $580 versus $1,925 for the Herman Miller Cosm High Back at the brand stores (Sep 2026).

What do owners mention most?

Adjustability for the Office Star ProGrid, and comfort for the Herman Miller Cosm High Back, based on review summaries.