Herman Miller Zeph vs X-Chair X3

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

Herman Miller

Herman Miller Zeph

$560 – $715

X-Chair

X-Chair X3

$979

35.5 lb

lighter: Herman Miller Zeph weighs less than X-Chair X3 (official specs)

Differences at a glance

Herman Miller ZephX-Chair X3

Price: $560 – $715$979
Seat height: 14.75–20.25 in17.69–22 in
Seat depth: 17 in16.75–19.25 in
Load capacity: 350 lb275 lb (125 kg)
Warranty: 12 years5 years (all parts and materials); 15 years (non-moving metal components, chair frame)

Which is cheaper, the Herman Miller Zeph or the X-Chair X3?

The Herman Miller Zeph is cheaper to start: $560 versus $979 for the X-Chair X3 at the brand stores (Oct 2026).

Which has a higher weight capacity?

The Herman Miller Zeph, rated for 350 lb versus 275 lb for the X-Chair X3.