SIHOO M59AS vs Humanscale Freedom

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

SIHOO

SIHOO M59AS

$449.99

Humanscale

Humanscale Freedom

$1,494 – $2,567

$1,044.01

lower starting price for SIHOO M59AS than Humanscale Freedom at the brand stores

Differences at a glance

SIHOO M59ASHumanscale Freedom

Price: $449.99$1,494 – $2,567
Seat height: 46.5–56.5 cm16.125–20.25 in (41–51.4 cm)
Seat depth: 17.13 in (≈ 43.5 cm)17.4–19.85 in (44.2–50.4 cm)
Load capacity: 330 lb (≈ 150 kg)400 lb (181.4 kg)
Recline: Recline up to 126°Weight-sensitive (self-adjusting) recline; 22° recline plus 7° backrest tilt; seat-to-back reference angle 100°–129°
Arms: 3D coordinated flip-up armrests (flip up and down, left and right, forward and backward)6 in range of vertical motion; armrest height 3.75–9.6 in from compressed seat
Headrest: Double-jointed headrest (height and angle)Freedom Headrest configuration: Dynamic Headrest, moves with the sitter on recline; 5 in vertical adjustment; 30° radial motion
Lumbar support: Dynamic lumbar support in a dual-section backrestNo separate lumbar adjustment; pivoting backrest gives up to 1 in additional lumbar support
Warranty: 3 years15 years; fabric/cushions/arm pads/casters 5 years

Which is cheaper, the SIHOO M59AS or the Humanscale Freedom?

The SIHOO M59AS is cheaper to start: $449.99 versus $1,494 for the Humanscale Freedom at the brand stores (Oct 2026).

Which has a higher weight capacity?

The Humanscale Freedom, rated for 400 lb versus 330 lb for the SIHOO M59AS.

Which has a headrest?

Both: the SIHOO M59AS as standard and the Humanscale Freedom as standard.