Office Star ProGrid vs Humanscale Diffrient Smart

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

Office Star

Office Star ProGrid

$580 – $650

Humanscale

Humanscale Diffrient Smart

$1,987

$1,407

lower starting price for Office Star ProGrid than Humanscale Diffrient Smart at the brand stores

Differences at a glance

Office Star ProGridHumanscale Diffrient Smart

Price: $580 – $650$1,987
Seat height: 19.5–23 in (50–58 cm)16.5” – 22.8”
Seat depth: 19.5” D; Seat Travel: 3.75”16.25” - 18.75” seat depth adjustment range
Recline: 2-to-1 synchro tilt control with adjustable tilt tension18° recline + 8° backrest tilt
Arms: Height adjustable arms; Arms Max Inside: 19”; Arms to Floor Min: 25.25”; Arms to Seat Min: 6.5”Fixed Duron Arms / Adjustable Duron Arms / 4D Adj Duron Arms / Armless
Lumbar support: Breathable ProGrid® back with built-in lumbar support; Ratchet back height adjustmentTri-panel Form-Sensing mesh adapts its lumbar support to each user (no manual lumbar adjustment)

Which is cheaper, the Office Star ProGrid or the Humanscale Diffrient Smart?

The Office Star ProGrid is cheaper to start: $580 versus $1,987 for the Humanscale Diffrient Smart at the brand stores (Sep 2026).

What do owners mention most?

Adjustability for the Office Star ProGrid, and comfort for the Humanscale Diffrient Smart, based on review summaries.