Herman Miller Mirra 2 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 Mirra 2

$1,365 – $1,915

SIHOO

SIHOO Doro S300

$999.99

9 years

longer warranty on Herman Miller Mirra 2 than SIHOO Doro S300 (official terms)

Differences at a glance

Herman Miller Mirra 2SIHOO Doro S300

Price: $1,365 – $1,915$999.99
Seat height: 16–20.5 in standard; 14.75–19 in low; 16.75–22.25 in extended47 – 55.5 cm (18.50 – 21.85 in)
Seat depth: 16.25 in fixed; 16.25–18 in adjustable40 – 47 cm (15.75 – 18.50 in)
Load capacity: 350 lb (159 kg)330 lb (≈ 150 kg)
Recline: Harmonic 2 Tilt; options: Standard Tilt, Tilt Limiter, Tilt Limiter with Seat AngleRecline Angles: 100°, 110°, 130°
Arms: Options: No Arms, Fixed Arms, Fully Adjustable 4D Arms6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)
Lumbar support: PostureFit Sacral-Support Standard; Adjustable Lumbar-Support OptionalDual dynamic lumbar support; angle 90°-105° fine-tuned with the gas lift
Warranty: 12-year, 3-shift warranty, with limited exceptions3 years

From 18 Herman Miller Mirra 2 and 0 SIHOO Doro S300 user reviews, most mentioned first. Green is liked, orange is a caution.

Which is cheaper, the Herman Miller Mirra 2 or the SIHOO Doro S300?

The SIHOO Doro S300 is cheaper to start: $999.99 versus $1,365 for the Herman Miller Mirra 2 at the brand stores (Oct 2026).

Which has a higher weight capacity?

The Herman Miller Mirra 2, rated for 350 lb versus 330 lb for the SIHOO Doro S300.

What do owners mention most?

Comfort for the Herman Miller Mirra 2, and breathability for the SIHOO Doro S300, based on review summaries.