Herman Miller Aeron vs SIHOO M57

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

Herman Miller

Herman Miller Aeron

$1,775 – $2,840

SIHOO

SIHOO M57

$319.99

$1,455.01

lower starting price for SIHOO M57 than Herman Miller Aeron at the brand stores

Differences at a glance

Herman Miller AeronSIHOO M57

Price: $1,775 – $2,840$319.99
Seat height: 14.4–19.3 in (36.6–49 cm); 14.8–22.8 in (37.6–57.9 cm); 15.8–22.8 in (40.1–57.9 cm)46–55 cm (≈ 18.1-21.7 in)
Seat depth: 16 / 17 / 18.5 in (40.6 / 43.2 / 47.0 cm)18.11 in (≈ 46 cm)
Load capacity: 300 / 350 / 400 lb (136 / 158.8 / 181.4 kg)330 lb (≈ 150 kg)
Recline: Harmonic 2 Tilt; options: Standard/Basic tilt, Tilt Limiter, Tilt Limiter with Seat AngleReclines up to 126°
Arms: Arm height 7.5–11.5 in (adjustable arms); 8.5 in (fixed arms); Options: Fully Adjustable Arms, Height-Adjustable Arms with Pivot, Height-Adjustable Arms, No Arms, Stationary Arms; Arm Height 7.5–11.5 in (Fully Adjustable Arms, specs page)3D coordinated armrests (up and down, left and right, forward and backward)
Headrest: None offered by Herman MillerHeadrest adjusts vertically up to 3.9 inches and rotates 45 degrees
Lumbar support: Options: No additional support, PostureFit, Adjustable Lumbar Support, Adjustable PostureFit SLDual-adjustable lumbar support (vertical and horizontal)
Warranty: 12-year, 3-shift warranty, with limited exceptions3 years

Which is cheaper, the Herman Miller Aeron or the SIHOO M57?

The SIHOO M57 is cheaper to start: $319.99 versus $1,775 for the Herman Miller Aeron at the brand stores (Oct 2026).

Which has a headrest?

Only the SIHOO M57 (as standard); the Herman Miller Aeron does not offer one.