SIHOO Doro C300 Ultra V2 vs Steelcase Series 1

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

SIHOO

SIHOO Doro C300 Ultra V2

$679.99 – $689.99

Steelcase

Steelcase Series 1

$549 – $750

$130.99

lower starting price for Steelcase Series 1 than SIHOO Doro C300 Ultra V2 at the brand stores

Differences at a glance

SIHOO Doro C300 Ultra V2Steelcase Series 1

Price: $679.99 – $689.99$549 – $750
Seat height: 47.5–55.5 cm (≈ 18.7-21.9 in)16.5–21.5 in (41.9-54.6 cm); 14.75–17.75 in (37.5-45.1 cm); 17.25–22 in (43.8-55.9 cm)
Seat depth: 16.9–18.5 in (≈ 43-47 cm)15.5"D to 17.75"D (functional seat depth)
Load capacity: 330 lb (≈ 150 kg)400 lb (181.4 kg); 300 lb (136.1 kg)
Recline: Recline Angles 105°, 120°, 135°Weight-activated synchro tilt; comfort dial with upright back lock, boost setting and weight-activated full recline
Arms: 8D Bionic Armrests (up, down, forward, back, rotate, or tilt)4D arms (standard), height-adjustable arms or armless
Headrest: Ultra-wide 3D headrest, adjusts in three directionsOptional headrest; adjusts 3.25" vertically
Lumbar support: Domino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levelsAdjustable lumbar is standard; fixed lumbar is available (3D Microknit Back only)
Warranty: 3 years (covers manufacturing defects)Limited Lifetime Warranty; 12-year, multi-shift, 24/7 parts and labor

Which is cheaper, the SIHOO Doro C300 Ultra V2 or the Steelcase Series 1?

The Steelcase Series 1 is cheaper to start: $549 versus $679.99 for the SIHOO Doro C300 Ultra V2 at the brand stores (Oct 2026).

Which has a headrest?

Both: the SIHOO Doro C300 Ultra V2 as standard and the Steelcase Series 1 as an option.