SIHOO Doro C300 Pro 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 C300 Pro

$789.99 – $839.99

Office Star

Office Star ProGrid

$580 – $650

$209.99

lower starting price for Office Star ProGrid than SIHOO Doro C300 Pro at the brand stores

Differences at a glance

SIHOO Doro C300 ProOffice Star ProGrid

Price: $789.99 – $839.99$580 – $650
Seat height: 46–56.7 cm19.5–23 in (50–58 cm)
Seat depth: 16.81–17.76 in (≈ 42.7-45.1 cm)19.5” D; Seat Travel: 3.75”
Recline: Maximum recline angle of 135°2-to-1 synchro tilt control with adjustable tilt tension
Arms: 6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)Height adjustable arms; Arms Max Inside: 19”; Arms to Floor Min: 25.25”; Arms to Seat Min: 6.5”
Lumbar support: Lumbar support automatically conforms to your spine (BM Tracking System)Breathable ProGrid® back with built-in lumbar support; Ratchet back height adjustment

Which is cheaper, the SIHOO Doro C300 Pro or the Office Star ProGrid?

The Office Star ProGrid is cheaper to start: $580 versus $789.99 for the SIHOO Doro C300 Pro at the brand stores (Oct 2026).