SIHOO Doro C300 vs FlexiSpot Standard Ergo Office Chair (C4)

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

FlexiSpot

FlexiSpot Standard Ergo Office Chair (C4)

$219.99 – $239.99

$340

lower starting price for FlexiSpot Standard Ergo Office Chair (C4) than SIHOO Doro C300 at the brand stores

Differences at a glance

SIHOO Doro C300FlexiSpot Standard Ergo Office Chair (C4)

Price: $559.99 – $569.99$219.99 – $239.99
Seat height: 47–55 cm17.91–20.87 in
Seat depth: 43.5–46 cm19.49 in
Load capacity: 330 lb (≈ 150 kg)300 lb
Recline: Recline Angles: 110°, 120°, 130°90–135°
Arms: 4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage)3D
Headrest: 3D Mechanical Headrest3D
Lumbar support: Self-adaptive dynamic lumbar supportfixed
Warranty: 3 years5 years

Which is cheaper, the SIHOO Doro C300 or the FlexiSpot Standard Ergo Office Chair (C4)?

The FlexiSpot Standard Ergo Office Chair (C4) is cheaper to start: $219.99 versus $559.99 for the SIHOO Doro C300 at the brand stores (Oct 2026).

Which has a higher weight capacity?

The SIHOO Doro C300, rated for 330 lb versus 300 lb for the FlexiSpot Standard Ergo Office Chair (C4).

Which has a headrest?

Both: the SIHOO Doro C300 as standard and the FlexiSpot Standard Ergo Office Chair (C4) as standard.