Herman Miller Aeron vs SIHOO B300 Pro

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 B300 Pro

$329.99 – $379.99

$1,445.01

lower starting price for SIHOO B300 Pro than Herman Miller Aeron at the brand stores

Differences at a glance

Herman Miller AeronSIHOO B300 Pro

Price: $1,775 – $2,840$329.99 – $379.99
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)46.8–55.3 cm
Seat depth: 16 / 17 / 18.5 in (40.6 / 43.2 / 47.0 cm)16.5–18.5 in (≈ 42-47 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 AngleThree lockable recline angles: 105°, 120°, 135°
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)6D All-Around Armrests (rotate, adjust, flip up)
Headrest: None offered by Herman Miller3D Ultra-Wide Headrest
Lumbar support: Options: No additional support, PostureFit, Adjustable Lumbar Support, Adjustable PostureFit SL4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustment
Warranty: 12-year, 3-shift warranty, with limited exceptions3-Year Free Warranty

Which is cheaper, the Herman Miller Aeron or the SIHOO B300 Pro?

The SIHOO B300 Pro is cheaper to start: $329.99 versus $1,775 for the Herman Miller Aeron at the brand stores (Oct 2026).

Which has a headrest?

Only the SIHOO B300 Pro (as standard); the Herman Miller Aeron does not offer one.