Herman Miller Aeron vs SIHOO Doro C300 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 Doro C300 Pro

$789.99 – $839.99

9 years

longer warranty on Herman Miller Aeron than SIHOO Doro C300 Pro (official terms)

Differences at a glance

Herman Miller AeronSIHOO Doro C300 Pro

Price: $1,775 – $2,840$789.99 – $839.99
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)46–56.7 cm
Seat depth: 16 / 17 / 18.5 in (40.6 / 43.2 / 47.0 cm)16.81–17.76 in (≈ 42.7-45.1 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 AngleMaximum recline angle of 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 coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)
Headrest: None offered by Herman MillerHeadrest adjusts up and down, back and forth, or rotates
Lumbar support: Options: No additional support, PostureFit, Adjustable Lumbar Support, Adjustable PostureFit SLLumbar support automatically conforms to your spine (BM Tracking System)
Warranty: 12-year, 3-shift warranty, with limited exceptions3 years

Which is cheaper, the Herman Miller Aeron or the SIHOO Doro C300 Pro?

The SIHOO Doro C300 Pro is cheaper to start: $789.99 versus $1,775 for the Herman Miller Aeron at the brand stores (Oct 2026).

Which has a headrest?

Only the SIHOO Doro C300 Pro (as standard); the Herman Miller Aeron does not offer one.