Vitra Physix vs KI Torsion Air

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 Torsion Air

$904 – $944

$616

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

Differences at a glance

Vitra PhysixKI Torsion Air

Price: From $1,520$904 – $944
Seat height: 390–510 mm18–23 in (45.7–58.4 cm)
Seat depth: 435 mm18.5 in (47.0 cm)
Recline: Synchronised movement, individual adjustment of backrest resistance and locking device in upright positionTorsion flex back; gradually increasing resistance over the full 12 degrees of back flex
Arms: Flexible frame and armrests in polyamide (deep black or soft grey)Arms or armless
Warranty: 5 yearsLifetime

Which is cheaper, the Vitra Physix or the KI Torsion Air?

The KI Torsion Air is cheaper to start: $904 versus $1,520 for the Vitra Physix at the brand stores (Oct 2026).