SIHOO M57 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 M57

$319.99

Steelcase

Steelcase Series 1

$549 – $750

$229.01

lower starting price for SIHOO M57 than Steelcase Series 1 at the brand stores

Differences at a glance

SIHOO M57Steelcase Series 1

Price: $319.99$549 – $750
Seat height: 46–55 cm (≈ 18.1-21.7 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: 18.11 in (≈ 46 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: Reclines up to 126°Weight-activated synchro tilt; comfort dial with upright back lock, boost setting and weight-activated full recline
Arms: 3D coordinated armrests (up and down, left and right, forward and backward)4D arms (standard), height-adjustable arms or armless
Headrest: Headrest adjusts vertically up to 3.9 inches and rotates 45 degreesOptional headrest; adjusts 3.25" vertically
Lumbar support: Dual-adjustable lumbar support (vertical and horizontal)Adjustable lumbar is standard; fixed lumbar is available (3D Microknit Back only)
Warranty: 3 yearsLimited Lifetime Warranty; 12-year, multi-shift, 24/7 parts and labor

Which is cheaper, the SIHOO M57 or the Steelcase Series 1?

The SIHOO M57 is cheaper to start: $319.99 versus $549 for the Steelcase Series 1 at the brand stores (Oct 2026).

Which has a headrest?

Both: the SIHOO M57 as standard and the Steelcase Series 1 as an option.