SIHOO Doro C300 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 Doro C300 Pro

$789.99 – $839.99

Herman Miller

Herman Miller Aeron

$1,775 – $2,840

9 years

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

Differences at a glance

SIHOO Doro C300 ProHerman Miller Aeron

Price: $789.99 – $839.99$1,775 – $2,840
Seat height: 46–56.7 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: 16.81–17.76 in (≈ 42.7-45.1 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: Maximum recline angle of 135°Harmonic 2 Tilt; options: Standard/Basic tilt, Tilt Limiter, Tilt Limiter with Seat Angle
Arms: 6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)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: Headrest adjusts up and down, back and forth, or rotatesNone offered by Herman Miller
Lumbar support: Lumbar support automatically conforms to your spine (BM Tracking System)Options: No additional support, PostureFit, Adjustable Lumbar Support, Adjustable PostureFit SL
Warranty: 3 years12-year, 3-shift warranty, with limited exceptions

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

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.