X-Chair X1 vs Herman Miller Zeph

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

X-Chair

X-Chair X1

$729

Herman Miller

Herman Miller Zeph

$560 – $715

30.5 lb

lighter: Herman Miller Zeph weighs less than X-Chair X1 (official specs)

Differences at a glance

X-Chair X1Herman Miller Zeph

Price: $729$560 – $715
Seat height: 15.56–19.75 in14.75–20.25 in
Seat depth: 16–18 in17 in
Load capacity: 275 lb (125 kg)350 lb
Warranty: 5 years (all parts and materials); 15 years (non-moving metal components, chair frame)12 years

Which is cheaper, the X-Chair X1 or the Herman Miller Zeph?

The Herman Miller Zeph is cheaper to start: $560 versus $729 for the X-Chair X1 at the brand stores (Sep 2026).

Which has a higher weight capacity?

The Herman Miller Zeph, rated for 350 lb versus 275 lb for the X-Chair X1.