Steelcase Series 2 vs SIHOO M57

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

Steelcase

Steelcase Series 2

$749 – $1,171

SIHOO

SIHOO M57

$319.99

$429.01

lower starting price for SIHOO M57 than Steelcase Series 2 at the brand stores

Differences at a glance

Steelcase Series 2SIHOO M57

Price: $749 – $1,171$319.99
Seat height: 16.5–21.5 in (41.9-54.6 cm); 14.75–18 in (37.5-45.7 cm); 17.25–22 in (43.8-55.9 cm)46–55 cm (≈ 18.1-21.7 in)
Seat depth: 14"D to 17.75"D (functional seat depth)18.11 in (≈ 46 cm)
Recline: Angle between seat and back 99.5° to 119°Reclines up to 126°
Arms: Arm height from seat 7.5"H to 11.5"H: Adjustable3D coordinated armrests (up and down, left and right, forward and backward)
Lumbar support: Lumbar height from seat 8.5"H to 9.75"HDual-adjustable lumbar support (vertical and horizontal)

Which is cheaper, the Steelcase Series 2 or the SIHOO M57?

The SIHOO M57 is cheaper to start: $319.99 versus $749 for the Steelcase Series 2 at the brand stores (Sep 2026).