SIHOO M18 vs Haworth Soji XL
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
$1,255.01
lower starting price for SIHOO M18 than Haworth Soji XL at the brand stores
Differences at a glance
Sources
- M18 Classic Ergonomischer Bürostuhl – SIHOO DE official store ↗Checked Oct 16, 2026
- Haworth Soji XL product page ↗Checked Oct 17, 2026
- Sihoo M18 Ergonomic Office Chair – Official US Sihoo Store ↗Checked Sep 29, 2026
SIHOO M18Haworth Soji XL
- Price
- $289.99 – $299.99$1,545 – $1,760
- Seat height
- 44–54 cm16.4–21 in
- Seat depth
- 17.91 in (≈ 45.5 cm)16.25–18.75 in
- Load capacity
- 330 lb (≈ 150 kg)600 lb
- Arms
- Adjustable armrests (Up and down)4D
- Lumbar support
- Lumbar support adjusts vertically and horizontallyoptional height-adjustable
- Warranty
- 3 years12 years
Questions
Which is cheaper, the SIHOO M18 or the Haworth Soji XL?
The SIHOO M18 is cheaper to start: $289.99 versus $1,545 for the Haworth Soji XL at the brand stores (Oct 2026).
Which has a higher weight capacity?
The Haworth Soji XL, rated for 600 lb versus 330 lb for the SIHOO M18.
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- 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.