SIHOO Doro C300 Pro vs Humanscale Diffrient Smart

Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.

SIHOO

SIHOO Doro C300 Pro

$789.99 – $839.99

Humanscale

Humanscale Diffrient Smart

$1,987

$1,197.01

lower starting price for SIHOO Doro C300 Pro than Humanscale Diffrient Smart at the brand stores

Differences at a glance

SIHOO Doro C300 ProHumanscale Diffrient Smart

Price: $789.99 – $839.99$1,987
Seat height: 46–56.7 cm16.5” – 22.8”
Seat depth: 16.81–17.76 in (≈ 42.7-45.1 cm)16.25” - 18.75” seat depth adjustment range
Load capacity: 330 lb (≈ 150 kg)up to 400 lbs.
Recline: Maximum recline angle of 135°18° recline + 8° backrest tilt
Arms: 6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)Fixed Duron Arms / Adjustable Duron Arms / 4D Adj Duron Arms / Armless
Lumbar support: Lumbar support automatically conforms to your spine (BM Tracking System)Tri-panel Form-Sensing mesh adapts its lumbar support to each user (no manual lumbar adjustment)
Warranty: 3 years15-year, 24/7 warranty

Which is cheaper, the SIHOO Doro C300 Pro or the Humanscale Diffrient Smart?

The SIHOO Doro C300 Pro is cheaper to start: $789.99 versus $1,987 for the Humanscale Diffrient Smart at the brand stores (Oct 2026).