Vitra Physix vs KI Signia

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

Vitra

Vitra Physix

From $1,520

KI Signia

$930 – $1,076

$590

lower starting price for KI Signia than Vitra Physix at the brand stores

Differences at a glance

Vitra PhysixKI Signia

Price: From $1,520$930 – $1,076
Seat height: 390–510 mm17.5–22 in (44.5–55.9 cm)
Seat depth: 435 mm17–20 in (43.2–50.8 cm)
Recline: Synchronised movement, individual adjustment of backrest resistance and locking device in upright positionFive-position back travel limiter provides up to 27 degrees of recline
Arms: Flexible frame and armrests in polyamide (deep black or soft grey)Armless, fixed reverse cantilever conference arms, 1D adjustable arms, or 4D adjustable arms
Warranty: 5 yearsLifetime

Which is cheaper, the Vitra Physix or the KI Signia?

The KI Signia is cheaper to start: $930 versus $1,520 for the Vitra Physix at the brand stores (Oct 2026).