Humanscale Diffrient World vs KI Signia

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

Humanscale

Humanscale Diffrient World

$1,431

KI Signia

$930 – $1,076

$501

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

Differences at a glance

Humanscale Diffrient WorldKI Signia

Price: $1,431$930 – $1,076
Seat height: 15.6” – 20.75”17.5–22 in (44.5–55.9 cm)
Recline: 17° recline + 8° backrest tiltFive-position back travel limiter provides up to 27 degrees of recline
Arms: Duron Arms: Armless / Fixed / Height Adjustable / 4DArmless, fixed reverse cantilever conference arms, 1D adjustable arms, or 4D adjustable arms
Lumbar support: Tri-paneled Form Sensing mesh back (no manual lumbar adjustment)Optional lumbar support with 2.5" of vertical adjustment
Warranty: 15 Years, Components and Parts | 5 Years, Fabric and CushionsLifetime

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

The KI Signia is cheaper to start: $930 versus $1,431 for the Humanscale Diffrient World at the brand stores (Sep 2026).