SIHOO M18 vs Humanscale Freedom
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
$1,204.01
lower starting price for SIHOO M18 than Humanscale Freedom at the brand stores
Differences at a glance
Sources
- M18 Classic Ergonomischer Bürostuhl – SIHOO DE official store ↗Checked Oct 16, 2026
- Humanscale US Price Guide, Feb 2020 (PDF) – Freedom Features & Specifications pages ↗Checked Sep 28, 2026
- Sihoo M18 Ergonomic Office Chair – Official US Sihoo Store ↗Checked Sep 29, 2026
- Freedom Ocean Task Chair | Humanscale Shop ↗Checked Sep 28, 2026
- Price
- $289.99 – $299.99$1,494 – $2,567
- Seat height
- 44–54 cm16.125–20.25 in (41–51.4 cm)
- Seat depth
- 17.91 in (≈ 45.5 cm)17.4–19.85 in (44.2–50.4 cm)
- Load capacity
- 330 lb (≈ 150 kg)400 lb (181.4 kg)
- Recline
- Maximum 126° recline angleWeight-sensitive (self-adjusting) recline; 22° recline plus 7° backrest tilt; seat-to-back reference angle 100°–129°
- Arms
- Adjustable armrests (Up and down)6 in range of vertical motion; armrest height 3.75–9.6 in from compressed seat
- Headrest
- Headrest moves 3.9" up and down and pivots 45°Freedom Headrest configuration: Dynamic Headrest, moves with the sitter on recline; 5 in vertical adjustment; 30° radial motion
- Lumbar support
- Lumbar support adjusts vertically and horizontallyNo separate lumbar adjustment; pivoting backrest gives up to 1 in additional lumbar support
- Warranty
- 3 years15 years; fabric/cushions/arm pads/casters 5 years
What users mention
From 5 SIHOO M18 and 27 Humanscale Freedom user reviews, most mentioned first. Green is liked, orange is a caution.
Adjustability
SIHOO M1810 mentionsHumanscale Freedom29 mentionsComfort
SIHOO M187 mentionsHumanscale Freedom27 mentionsPrice and value
SIHOO M1813 mentionsHumanscale Freedom20 mentionsBuild quality
SIHOO M187 mentionsHumanscale Freedom24 mentionsDesign
SIHOO M185 mentionsHumanscale Freedom25 mentionsRecline and tilt
SIHOO M183 mentionsHumanscale Freedom23 mentions
Questions
Which is cheaper, the SIHOO M18 or the Humanscale Freedom?
The SIHOO M18 is cheaper to start: $289.99 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 M18.
Which has a headrest?
Both: the SIHOO M18 as standard and the Humanscale Freedom as standard.
What do owners mention most?
Price and value for the SIHOO M18, and adjustability for the Humanscale Freedom, based on review summaries.
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More comparisons
- SIHOO M18 vs Herman Miller Aeron Arms: Adjustable armrests on SIHOO M18; Arm height 7.5–11.5 in on Herman Miller Aeron.
- SIHOO M18 vs Ticova Ergonomic Office Chair Ticova and SIHOO M18 both offer mesh backs and cushioned seats.
- SIHOO M18 vs Branch Ergonomic Chair Arms: Adjustable armrests on SIHOO M18; 3D removable armrests on Branch Ergonomic Chair.
- SIHOO M18 vs FlexiSpot OC3 Arms: Adjustable armrests on SIHOO M18; 2D on FlexiSpot OC3.
- Humanscale Freedom vs Herman Miller Aeron Arms: 6 in range of vertical motion on Humanscale Freedom; Arm height 7.5–11.5 in on Herman Miller Aeron.
- Humanscale Freedom vs Steelcase Gesture Arms: 6 in range of vertical motion on Humanscale Freedom; Width 10.25–22.5 in between arms on Steelcase Gesture.