KI Signia vs X-Chair X3

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

KI Signia

$930 – $1,076

X-Chair

X-Chair X3

$979

Nearly the same price

$930 vs $979 starting prices at the brand stores (KI Signia vs X-Chair X3)

Differences at a glance

KI SigniaX-Chair X3

Price: $930 – $1,076$979
Seat height: 17.5–22 in (44.5–55.9 cm)17.69–22 in
Seat depth: 17–20 in (43.2–50.8 cm)16.75–19.25 in
Recline: Five-position back travel limiter provides up to 27 degrees of reclineSciFloat 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.
Arms: Armless, fixed reverse cantilever conference arms, 1D adjustable arms, or 4D adjustable arms4-Dimensional armrests come standard (up, down, side-to-side, front-to-back); option to upgrade to FS 360 rotational armrests; Armrest Height 5.875in - 8.875in
Lumbar support: Optional lumbar support with 2.5" of vertical adjustmentDynamic Variable Lumbar (DVL)® Support; height adjustable backrest raises the DVL®
Warranty: Lifetime5 years (all parts and materials); 15 years (non-moving metal components, chair frame)

Which is cheaper, the KI Signia or the X-Chair X3?

The KI Signia is cheaper to start: $930 versus $979 for the X-Chair X3 at the brand stores (Sep 2026).