Steelcase Karman vs SIHOO Doro C300 Ultra V2

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

Steelcase

Steelcase Karman

$1,199 – $1,543

SIHOO

SIHOO Doro C300 Ultra V2

$679.99 – $689.99

28.1 lb

lighter: Steelcase Karman weighs less than SIHOO Doro C300 Ultra V2 (official specs)

Differences at a glance

Steelcase KarmanSIHOO Doro C300 Ultra V2

Price: $1,199 – $1,543$679.99 – $689.99
Seat height: 15.625–20 in (39.7–50.8 cm)47.5–55.5 cm (≈ 18.7-21.9 in)
Seat depth: Fixed seat depth (no number given)16.9–18.5 in (≈ 43-47 cm)
Load capacity: 350 lb (158.8 kg)330 lb (≈ 150 kg)
Recline: Comfort dial supports four recline positionsRecline Angles 105°, 120°, 135°
Arms: 4D arms or armless; 4D ARM: raise up and down, pivot in and out, shift in all directions8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
Headrest: No headrest option; High Back version has an adjustable neck support pillowUltra-wide 3D headrest, adjusts in three directions
Lumbar support: Optional lumbar supportDomino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
Warranty: Steelcase Limited Lifetime Warranty3 years (covers manufacturing defects)

Which is cheaper, the Steelcase Karman or the SIHOO Doro C300 Ultra V2?

The SIHOO Doro C300 Ultra V2 is cheaper to start: $679.99 versus $1,199 for the Steelcase Karman at the brand stores (Sep 2026).

Which has a higher weight capacity?

The Steelcase Karman, rated for 350 lb versus 330 lb for the SIHOO Doro C300 Ultra V2.

Which has a headrest?

Only the SIHOO Doro C300 Ultra V2 (as standard); the Steelcase Karman does not offer one.