KI Torsion Air vs Vitra Physix

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

KI Torsion Air

$904 – $944

Vitra

Vitra Physix

From $1,520

$616

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

Differences at a glance

KI Torsion AirVitra Physix

Price: $904 – $944From $1,520
Seat height: 18–23 in (45.7–58.4 cm)390–510 mm
Seat depth: 18.5 in (47.0 cm)435 mm
Recline: Torsion flex back; gradually increasing resistance over the full 12 degrees of back flexSynchronised movement, individual adjustment of backrest resistance and locking device in upright position
Arms: Arms or armlessFlexible frame and armrests in polyamide (deep black or soft grey)
Warranty: Lifetime5 years

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

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