Office Star ProGrid vs SIHOO M57

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

SIHOO

SIHOO M57

$319.99

$260.01

lower starting price for SIHOO M57 than Office Star ProGrid at the brand stores

Differences at a glance

Office Star ProGridSIHOO M57

Price: $580 – $650$319.99
Seat height: 19.5–23 in (50–58 cm)46–55 cm (≈ 18.1-21.7 in)
Seat depth: 19.5” D; Seat Travel: 3.75”18.11 in (≈ 46 cm)
Recline: 2-to-1 synchro tilt control with adjustable tilt tensionReclines up to 126°
Arms: Height adjustable arms; Arms Max Inside: 19”; Arms to Floor Min: 25.25”; Arms to Seat Min: 6.5”3D coordinated armrests (up and down, left and right, forward and backward)
Lumbar support: Breathable ProGrid® back with built-in lumbar support; Ratchet back height adjustmentDual-adjustable lumbar support (vertical and horizontal)

Which is cheaper, the Office Star ProGrid or the SIHOO M57?

The SIHOO M57 is cheaper to start: $319.99 versus $580 for the Office Star ProGrid at the brand stores (Sep 2026).