X-Chair X4 vs KI Signia

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

X-Chair

X-Chair X4

$1,199 – $1,249

KI Signia

$930 – $1,076

$269

lower starting price for KI Signia than X-Chair X4 at the brand stores

Differences at a glance

X-Chair X4KI Signia

Price: $1,199 – $1,249$930 – $1,076
Seat height: 17.5–20.88 in17.5–22 in (44.5–55.9 cm)
Seat depth: 17.75–19.75 in17–20 in (43.2–50.8 cm)
Recline: SciFloat Infinite Recline + Tilt Lock and Tension allows you to recline and lock into position or increase tension in your recline motion for more fluid movement.Five-position back travel limiter provides up to 27 degrees of recline
Arms: 4-Dimensional armrests come standard (up, down, side-to-side, front-to-back); option to upgrade to FS 360 rotational armrests; Armrest Height 5.875in - 8.875inArmless, fixed reverse cantilever conference arms, 1D adjustable arms, or 4D adjustable arms
Lumbar support: Dynamic Variable Lumbar (DVL)® Support; height adjustable backrest raises the DVL®Optional lumbar support with 2.5" of vertical adjustment
Warranty: 5 years (all parts and materials); 15 years (non-moving metal components, chair frame)Lifetime

Which is cheaper, the X-Chair X4 or the KI Signia?

The KI Signia is cheaper to start: $930 versus $1,199 for the X-Chair X4 at the brand stores (Sep 2026).