Steelcase Series 2 vs SIHOO M18

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 M18

$289.99 – $299.99

$459.01

lower starting price for SIHOO M18 than Steelcase Series 2 at the brand stores

Differences at a glance

Steelcase Series 2SIHOO M18

Price: $749 – $1,171$289.99 – $299.99
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)44–54 cm
Seat depth: 14"D to 17.75"D (functional seat depth)17.91 in (≈ 45.5 cm)
Recline: Angle between seat and back 99.5° to 119°Maximum 126° recline angle
Arms: Arm height from seat 7.5"H to 11.5"H: AdjustableAdjustable armrests (Up and down)
Lumbar support: Lumbar height from seat 8.5"H to 9.75"HLumbar support adjusts vertically and horizontally

From 4 Steelcase Series 2 and 5 SIHOO M18 user reviews, most mentioned first. Green is liked, orange is a caution.

Which is cheaper, the Steelcase Series 2 or the SIHOO M18?

The SIHOO M18 is cheaper to start: $289.99 versus $749 for the Steelcase Series 2 at the brand stores (Sep 2026).

What do owners mention most?

Comfort for the Steelcase Series 2, and price and value for the SIHOO M18, based on review summaries.