Herman Miller Aeron vs SIHOO Doro S300

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 S300

$999.99

9 years

longer warranty on Herman Miller Aeron than SIHOO Doro S300 (official terms)

Differences at a glance

Herman Miller AeronSIHOO Doro S300

Price: $1,775 – $2,840$999.99
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)47 – 55.5 cm (18.50 – 21.85 in)
Seat depth: 16 / 17 / 18.5 in (40.6 / 43.2 / 47.0 cm)40 – 47 cm (15.75 – 18.50 in)
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 AngleRecline Angles: 100°, 110°, 130°
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 MillerSoft, integrated headrest; upper backrest adjusts in 5 levels
Lumbar support: Options: No additional support, PostureFit, Adjustable Lumbar Support, Adjustable PostureFit SLDual dynamic lumbar support; angle 90°-105° fine-tuned with the gas lift
Warranty: 12-year, 3-shift warranty, with limited exceptions3 years

From 423 Herman Miller Aeron and 0 SIHOO Doro S300 user reviews, most mentioned first. Green is liked, orange is a caution.

Which is cheaper, the Herman Miller Aeron or the SIHOO Doro S300?

The SIHOO Doro S300 is cheaper to start: $999.99 versus $1,775 for the Herman Miller Aeron at the brand stores (Oct 2026).

Which has a headrest?

Only the SIHOO Doro S300 (as standard); the Herman Miller Aeron does not offer one.

What do owners mention most?

Price and value for the Herman Miller Aeron, and breathability for the SIHOO Doro S300, based on review summaries.