Steelcase Series 1 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 Series 1

$549 – $750

SIHOO

SIHOO Doro C300 Ultra V2

$679.99 – $689.99

$130.99

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

Differences at a glance

Steelcase Series 1SIHOO Doro C300 Ultra V2

Price: $549 – $750$679.99 – $689.99
Seat height: 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)47.5–55.5 cm (≈ 18.7-21.9 in)
Seat depth: 15.5"D to 17.75"D (functional seat depth)16.9–18.5 in (≈ 43-47 cm)
Load capacity: 400 lb (181.4 kg); 300 lb (136.1 kg)330 lb (≈ 150 kg)
Recline: Weight-activated synchro tilt; comfort dial with upright back lock, boost setting and weight-activated full reclineRecline Angles 105°, 120°, 135°
Arms: 4D arms (standard), height-adjustable arms or armless8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
Headrest: Optional headrest; adjusts 3.25" verticallyUltra-wide 3D headrest, adjusts in three directions
Lumbar support: Adjustable lumbar is standard; fixed lumbar is available (3D Microknit Back only)Domino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
Warranty: Limited Lifetime Warranty; 12-year, multi-shift, 24/7 parts and labor3 years (covers manufacturing defects)

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

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

Which has a headrest?

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