Herman Miller Sayl 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 Sayl

$935 – $1,580

SIHOO

SIHOO Doro C300 Ultra V2

$679.99 – $689.99

9 years

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

Differences at a glance

Herman Miller SaylSIHOO Doro C300 Ultra V2

Price: $935 – $1,580$679.99 – $689.99
Seat height: 16–20.5 in standard; 15–19 in low; 16.5–22 in extended47.5–55.5 cm (≈ 18.7-21.9 in)
Seat depth: 16.5 in fixed; 16–18 in adjustable16.9–18.5 in (≈ 43-47 cm)
Load capacity: 350 lb (159 kg)330 lb (≈ 150 kg)
Recline: Harmonic Tilt; Tilt Limiter standard, Tilt Limiter with Seat Angle optionalRecline Angles 105°, 120°, 135°
Arms: Options: No Arms, Fixed Arms, Height Adjustable Arms, Fully Adjustable 4D Arms8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
Lumbar support: PostureFit Sacral Support Standard; Lumbar Support OptionalDomino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
Warranty: 12-year, 3-shift3 years (covers manufacturing defects)

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

The SIHOO Doro C300 Ultra V2 is cheaper to start: $679.99 versus $935 for the Herman Miller Sayl at the brand stores (Oct 2026).

Which has a higher weight capacity?

The Herman Miller Sayl, rated for 350 lb versus 330 lb for the SIHOO Doro C300 Ultra V2.