Humanscale Diffrient Smart vs Vitra Physix

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

Humanscale

Humanscale Diffrient Smart

$1,987

Vitra

Vitra Physix

From $1,520

$467

lower starting price for Vitra Physix than Humanscale Diffrient Smart at the brand stores

Differences at a glance

Humanscale Diffrient SmartVitra Physix

Price: $1,987From $1,520
Seat height: 16.5” – 22.8”390–510 mm
Seat depth: 16.25” - 18.75” seat depth adjustment range435 mm
Recline: 18° recline + 8° backrest tiltSynchronised movement, individual adjustment of backrest resistance and locking device in upright position
Arms: Fixed Duron Arms / Adjustable Duron Arms / 4D Adj Duron Arms / ArmlessFlexible frame and armrests in polyamide (deep black or soft grey)
Warranty: 15-year, 24/7 warranty5 years

Which is cheaper, the Humanscale Diffrient Smart or the Vitra Physix?

The Vitra Physix is cheaper to start: $1,520 versus $1,987 for the Humanscale Diffrient Smart at the brand stores (Oct 2026).

What do owners mention most?

Comfort for the Humanscale Diffrient Smart, and adjustability for the Vitra Physix, based on review summaries.