SIHOO B300 Pro vs Herman Miller Aeron

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

SIHOO

SIHOO B300 Pro

$329.99 – $379.99

Herman Miller

Herman Miller Aeron

$1,775 – $2,840

$1,445.01

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

Differences at a glance

SIHOO B300 ProHerman Miller Aeron

Price: $329.99 – $379.99$1,775 – $2,840
Seat height: 46.8–55.3 cm14.4–19.3 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)
Seat depth: 16.5–18.5 in (≈ 42-47 cm)16 / 17 / 18.5 in (40.6 / 43.2 / 47.0 cm)
Load capacity: 330 lb (≈ 150 kg)300 / 350 / 400 lb (136 / 158.8 / 181.4 kg)
Recline: Three lockable recline angles: 105°, 120°, 135°Harmonic 2 Tilt; options: Standard/Basic tilt, Tilt Limiter, Tilt Limiter with Seat Angle
Arms: 6D All-Around Armrests (rotate, adjust, flip up)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)
Headrest: 3D Ultra-Wide HeadrestNone offered by Herman Miller
Lumbar support: 4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustmentOptions: No additional support, PostureFit, Adjustable Lumbar Support, Adjustable PostureFit SL
Warranty: 3-Year Free Warranty12-year, 3-shift warranty, with limited exceptions

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

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.