Vitra Physix vs Generation by Knoll

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

Knoll

Generation by Knoll

$1,653 – $1,886

7 years

longer warranty on Generation by Knoll than Vitra Physix (official terms)

Differences at a glance

Vitra PhysixGeneration by Knoll

Price: From $1,520$1,653 – $1,886
Seat height: 390–510 mm16.5–21.75 in (Thin Seat Foam); 17.25–22.5 in (Ultra Seat Foam)
Seat depth: 435 mm15.75–18.75 in with arms, 15.75–18.25 in armless (Ultra); 15–18 in with arms, 15–17.5 in armless (Thin)
Recline: Synchronised movement, individual adjustment of backrest resistance and locking device in upright positionSeat-to-back angle 96°–111°; back tilt range 15°; synchronized recline ratio seat:back 1°:4.4°
Arms: Flexible frame and armrests in polyamide (deep black or soft grey)Arm height from seat 6.625–11.125 in (Thin) / 6.125–10.625 in (Ultra); High performance arm pads adjust 2 in width (1 per arm), 1.5 in depth and pivot 45°
Warranty: 5 years12-year warranty (terms and conditions apply)

Which is cheaper, the Vitra Physix or the Generation by Knoll?

The Vitra Physix is cheaper to start: $1,520 versus $1,653 for the Generation by Knoll at the brand stores (Oct 2026).

What do owners mention most?

Adjustability for the Vitra Physix, and comfort for the Generation by Knoll, based on review summaries.