SIHOO Doro S100 vs Office Star ProGrid

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

SIHOO

SIHOO Doro S100

$499.99 – $509.99

Office Star

Office Star ProGrid

$580 – $650

$80.01

lower starting price for SIHOO Doro S100 than Office Star ProGrid at the brand stores

Differences at a glance

SIHOO Doro S100Office Star ProGrid

Price: $499.99 – $509.99$580 – $650
Seat height: 46–54 cm19.5–23 in (50–58 cm)
Seat depth: 15.15–17.12 in (≈ 38.5-43.5 cm)19.5” D; Seat Travel: 3.75”
Recline: Reclines up to 135°2-to-1 synchro tilt control with adjustable tilt tension
Arms: 4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage); Up and down 2.76 in, forward and back 1.18 in, side to side, rotate 72°Height adjustable arms; Arms Max Inside: 19”; Arms to Floor Min: 25.25”; Arms to Seat Min: 6.5”
Lumbar support: Dual dynamic lumbar supportBreathable ProGrid® back with built-in lumbar support; Ratchet back height adjustment

Which is cheaper, the SIHOO Doro S100 or the Office Star ProGrid?

The SIHOO Doro S100 is cheaper to start: $499.99 versus $580 for the Office Star ProGrid at the brand stores (Oct 2026).