Haworth Soji XL vs Humanscale Diffrient Smart

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

Haworth

Haworth Soji XL

$1,545 – $1,760

Humanscale

Humanscale Diffrient Smart

$1,987

$442

lower starting price for Haworth Soji XL than Humanscale Diffrient Smart at the brand stores

Differences at a glance

Haworth Soji XLHumanscale Diffrient Smart

Price: $1,545 – $1,760$1,987
Seat height: 16.4–21 in16.5” – 22.8”
Seat depth: 16.25–18.75 in16.25” - 18.75” seat depth adjustment range
Load capacity: 600 lbup to 400 lbs.
Arms: 4DFixed Duron Arms / Adjustable Duron Arms / 4D Adj Duron Arms / Armless
Lumbar support: optional height-adjustableTri-panel Form-Sensing mesh adapts its lumbar support to each user (no manual lumbar adjustment)
Warranty: 12 years15-year, 24/7 warranty

Which is cheaper, the Haworth Soji XL or the Humanscale Diffrient Smart?

The Haworth Soji XL is cheaper to start: $1,545 versus $1,987 for the Humanscale Diffrient Smart at the brand stores (Oct 2026).