KI Signia vs FlexiSpot Soutien Ergonomic Office Chair (C5)

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

KI Signia

$930 – $1,076

FlexiSpot

FlexiSpot Soutien Ergonomic Office Chair (C5)

$249.99 – $279.99

$680.01

lower starting price for FlexiSpot Soutien Ergonomic Office Chair (C5) than KI Signia at the brand stores

Differences at a glance

KI SigniaFlexiSpot Soutien Ergonomic Office Chair (C5)

Price: $930 – $1,076$249.99 – $279.99
Seat height: 17.5–22 in (44.5–55.9 cm)17.9–20.9 in
Seat depth: 17–20 in (43.2–50.8 cm)18.7 in
Recline: Five-position back travel limiter provides up to 27 degrees of recline95–115°
Arms: Armless, fixed reverse cantilever conference arms, 1D adjustable arms, or 4D adjustable arms2D
Lumbar support: Optional lumbar support with 2.5" of vertical adjustment2D
Warranty: Lifetime5 years

Which is cheaper, the KI Signia or the FlexiSpot Soutien Ergonomic Office Chair (C5)?

The FlexiSpot Soutien Ergonomic Office Chair (C5) is cheaper to start: $249.99 versus $930 for the KI Signia at the brand stores (Sep 2026).