Humanscale World One vs SIHOO M18

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

Humanscale

Humanscale World One

$705

SIHOO

SIHOO M18

$289.99 – $299.99

$415.01

lower starting price for SIHOO M18 than Humanscale World One at the brand stores

Differences at a glance

Humanscale World OneSIHOO M18

Price: $705$289.99 – $299.99
Seat height: 15.6 in - 20.7 in / 397 mm - 527 mm; 16 in - 21 in / 425 mm - 545; 18.1 in - 25.6 in / 460 mm - 651 mm44–54 cm
Seat depth: 16.4 / 416 in; 17.9 / 454 in17.91 in (≈ 45.5 cm)
Load capacity: 100–400 lb330 lb (≈ 150 kg)
Recline: 17° Recline + 8° Backrest TiltMaximum 126° recline angle
Arms: Armrest Height 9.5 in Fixed / 7.2 in - 10.75 in Adjustable (241.3 mm / 183 mm - 273 mm); options Adjustable Duron Arms, Fixed Duron Arms, No ArmsAdjustable armrests (Up and down)
Lumbar support: Tri-panel back with Form Sensing Mesh technology provides tailor-made lumbar support (no knobs or levers)Lumbar support adjusts vertically and horizontally
Warranty: 12 Years, Component and Parts; 5 Years, Fabric/Cushions3 years

From 5 Humanscale World One and 5 SIHOO M18 user reviews, most mentioned first. Green is liked, orange is a caution.

Which is cheaper, the Humanscale World One or the SIHOO M18?

The SIHOO M18 is cheaper to start: $289.99 versus $705 for the Humanscale World One at the brand stores (Sep 2026).

What do owners mention most?

Breathability for the Humanscale World One, and price and value for the SIHOO M18, based on review summaries.