Humanscale Diffrient World 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.

Humanscale

Humanscale Diffrient World

$1,431

SIHOO

SIHOO Doro C300 Ultra V2

$679.99 – $689.99

$751.01

lower starting price for SIHOO Doro C300 Ultra V2 than Humanscale Diffrient World at the brand stores

Differences at a glance

Humanscale Diffrient WorldSIHOO Doro C300 Ultra V2

Price: $1,431$679.99 – $689.99
Seat height: 15.6” – 20.75”47.5–55.5 cm (≈ 18.7-21.9 in)
Load capacity: up to 400 lbs330 lb (≈ 150 kg)
Recline: 17° recline + 8° backrest tiltRecline Angles 105°, 120°, 135°
Arms: Duron Arms: Armless / Fixed / Height Adjustable / 4D8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
Lumbar support: Tri-paneled Form Sensing mesh back (no manual lumbar adjustment)Domino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
Warranty: 15 Years, Components and Parts | 5 Years, Fabric and Cushions3 years (covers manufacturing defects)

Which is cheaper, the Humanscale Diffrient World or the SIHOO Doro C300 Ultra V2?

The SIHOO Doro C300 Ultra V2 is cheaper to start: $679.99 versus $1,431 for the Humanscale Diffrient World at the brand stores (Sep 2026).