Humanscale World One vs KI Altus
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
$176
lower starting price for Humanscale World One than KI Altus at the brand stores
Differences at a glance
Sources
- Humanscale World LM Spec Sheet ↗Checked Sep 29, 2026
- Altus Seating Price List, KI ↗Checked Sep 29, 2026
- Altus Task Chair product page, KI ↗Checked Sep 29, 2026
- US Humanscale Store (price) ↗Checked Sep 29, 2026
Humanscale World OneKI Altus
- Price
- $705$881 – $1,516
- 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 mm17–21.75 in (43.2–55.2 cm); 16.25–20.75 in (41.3–52.7 cm)
- Seat depth
- 16.4 / 416 in; 17.9 / 454 in17.25–19.75 in (43.8–50.2 cm); 15.5–18 in (39.4–45.7 cm)
- Load capacity
- 100–400 lbsupports up to 400 pounds
- 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 arms, fixed arms, or armless
- Lumbar support
- Tri-panel back with Form Sensing Mesh technology provides tailor-made lumbar support (no knobs or levers)Mesh chair: optional adjustable lumbar (height and depth); fabric chair: automatic lumbar support
- Warranty
- 12 Years, Component and Parts; 5 Years, Fabric/CushionsLifetime
Questions
Which is cheaper, the Humanscale World One or the KI Altus?
The Humanscale World One is cheaper to start: $705 versus $881 for the KI Altus at the brand stores (Sep 2026).
What do owners mention most?
Breathability for the Humanscale World One, and back support for the KI Altus, based on review summaries.
