Herman Miller Mirra 2 vs SIHOO Doro C300 Ultra V2

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 C300 Ultra V2

$679.99 – $689.99

9 years

longer warranty on Herman Miller Mirra 2 than SIHOO Doro C300 Ultra V2 (official terms)

Differences at a glance

Herman Miller Mirra 2SIHOO Doro C300 Ultra V2

Price: $1,365 – $1,915$679.99 – $689.99
Seat height: 16–20.5 in standard; 14.75–19 in low; 16.75–22.25 in extended47.5–55.5 cm (≈ 18.7-21.9 in)
Seat depth: 16.25 in fixed; 16.25–18 in adjustable16.9–18.5 in (≈ 43-47 cm)
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 105°, 120°, 135°
Arms: Options: No Arms, Fixed Arms, Fully Adjustable 4D Arms8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
Lumbar support: PostureFit Sacral-Support Standard; Adjustable Lumbar-Support OptionalDomino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
Warranty: 12-year, 3-shift warranty, with limited exceptions3 years (covers manufacturing defects)

Which is cheaper, the Herman Miller Mirra 2 or the SIHOO Doro C300 Ultra V2?

The SIHOO Doro C300 Ultra V2 is cheaper to start: $679.99 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 C300 Ultra V2.