X-Chair X2 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.

X-Chair

X-Chair X2

$879

Herman Miller

Herman Miller Cosm High Back

$1,925 – $2,400

$1,046

lower starting price for X-Chair X2 than Herman Miller Cosm High Back at the brand stores

Differences at a glance

X-Chair X2Herman Miller Cosm High Back

Price: $879$1,925 – $2,400
Seat height: 15.81–20 in14.8–21.4 in (37.6–54.4 cm)
Seat depth: 16.25–18 in15.9 in (40.4 cm)
Load capacity: 275 lb (125 kg)350 lb (158.8 kg)
Arms: 4-Dimensional armrests come standard (up, down, side-to-side, front-to-back); option to upgrade to FS 360 rotational armrests; Armrest Height 6.75in - 9.5inLeaf Arms; Height-Adjustable Arms; Fixed Arms; No Arms; Arm Height: 7.3–11.7"
Warranty: 5 years (all parts and materials); 15 years (non-moving metal components, chair frame)12-year, 3-shift warranty, with limited exceptions

From 0 X-Chair X2 and 33 Herman Miller Cosm High Back user reviews, most mentioned first. Green is liked, orange is a caution.

Which is cheaper, the X-Chair X2 or the Herman Miller Cosm High Back?

The X-Chair X2 is cheaper to start: $879 versus $1,925 for the Herman Miller Cosm High Back at the brand stores (Sep 2026).

Which has a higher weight capacity?

The Herman Miller Cosm High Back, rated for 350 lb versus 275 lb for the X-Chair X2.

What do owners mention most?

Comfort for the X-Chair X2, and comfort for the Herman Miller Cosm High Back, based on review summaries.