SIHOO Doro C300 vs FlexiSpot Soutien Ergonomic Office Chair (C5)

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 Soutien Ergonomic Office Chair (C5)

$249.99 – $279.99

$310

lower starting price for FlexiSpot Soutien Ergonomic Office Chair (C5) than SIHOO Doro C300 at the brand stores

Differences at a glance

SIHOO Doro C300FlexiSpot Soutien Ergonomic Office Chair (C5)

Price: $559.99 – $569.99$249.99 – $279.99
Seat height: 47–55 cm17.9–20.9 in
Seat depth: 43.5–46 cm18.7 in
Load capacity: 330 lb (≈ 150 kg)300 lb
Recline: Recline Angles: 110°, 120°, 130°95–115°
Arms: 4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage)2D
Headrest: 3D Mechanical Headrest2D
Lumbar support: Self-adaptive dynamic lumbar support2D
Warranty: 3 years5 years

Which is cheaper, the SIHOO Doro C300 or the FlexiSpot Soutien Ergonomic Office Chair (C5)?

The FlexiSpot Soutien Ergonomic Office Chair (C5) is cheaper to start: $249.99 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 Soutien Ergonomic Office Chair (C5).

Which has a headrest?

Both: the SIHOO Doro C300 as standard and the FlexiSpot Soutien Ergonomic Office Chair (C5) as standard.