SIHOO Doro C300 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

$559.99 – $569.99

Office Star

Office Star ProGrid

$580 – $650

Nearly the same price

$559.99 vs $580 starting prices at the brand stores (SIHOO Doro C300 vs Office Star ProGrid)

Differences at a glance

SIHOO Doro C300Office Star ProGrid

Price: $559.99 – $569.99$580 – $650
Seat height: 47–55 cm19.5–23 in (50–58 cm)
Seat depth: 43.5–46 cm19.5” D; Seat Travel: 3.75”
Recline: Recline Angles: 110°, 120°, 130°2-to-1 synchro tilt control with adjustable tilt tension
Arms: 4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage)Height adjustable arms; Arms Max Inside: 19”; Arms to Floor Min: 25.25”; Arms to Seat Min: 6.5”
Lumbar support: Self-adaptive dynamic lumbar supportBreathable ProGrid® back with built-in lumbar support; Ratchet back height adjustment

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

The SIHOO Doro C300 is cheaper to start: $559.99 versus $580 for the Office Star ProGrid at the brand stores (Oct 2026).

What do owners mention most?

Adjustability for the SIHOO Doro C300, and adjustability for the Office Star ProGrid, based on review summaries.