KI Signia vs Humanscale World One

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

KI Signia

$930 – $1,076

Humanscale

Humanscale World One

$705

$225

lower starting price for Humanscale World One than KI Signia at the brand stores

Differences at a glance

KI SigniaHumanscale World One

Price: $930 – $1,076$705
Seat height: 17.5–22 in (44.5–55.9 cm)15.6 in - 20.7 in / 397 mm - 527 mm; 16 in - 21 in / 425 mm - 545; 18.1 in - 25.6 in / 460 mm - 651 mm
Seat depth: 17–20 in (43.2–50.8 cm)16.4 / 416 in; 17.9 / 454 in
Recline: Five-position back travel limiter provides up to 27 degrees of recline17° Recline + 8° Backrest Tilt
Arms: Armless, fixed reverse cantilever conference arms, 1D adjustable arms, or 4D adjustable armsArmrest Height 9.5 in Fixed / 7.2 in - 10.75 in Adjustable (241.3 mm / 183 mm - 273 mm); options Adjustable Duron Arms, Fixed Duron Arms, No Arms
Lumbar support: Optional lumbar support with 2.5" of vertical adjustmentTri-panel back with Form Sensing Mesh technology provides tailor-made lumbar support (no knobs or levers)
Warranty: Lifetime12 Years, Component and Parts; 5 Years, Fabric/Cushions

Which is cheaper, the KI Signia or the Humanscale World One?

The Humanscale World One is cheaper to start: $705 versus $930 for the KI Signia at the brand stores (Sep 2026).