Humanscale Liberty vs Sidiz T80
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
17.1 lb
lighter: Humanscale Liberty weighs less than Sidiz T80 (official specs)
Differences at a glance
Sources
- Liberty Task Chair with Mesh Backrest – Humanscale Shop (US) ↗Checked Sep 26, 2026
- T80 work-tech chair – SIDIZ (SIDIZ official store, Korea) ↗Checked Sep 29, 2026
- Liberty brochure (PDF, Humanscale, undated) ↗Checked Sep 26, 2026
- Liberty Task Chair configurator (humanscale.com, US region) ↗Checked Sep 26, 2026
Humanscale LibertySidiz T80
- Price
- $1,613 – $2,326₩689,000 – ₩859,000
- Load capacity
- 400 lb (181.4 kg)Maximum load 125 kg (≈ 276 lb)
- Recline
- Self-Adjusting Recline: no tension springs, no recline locksMulti-limited tilt (limits backrest recline angle), tilt tension adjustment
- Arms
- Options: Fixed Duron Arms, Adjustable Duron Arms, Advanced Duron Arms, Armless, Fixed Duron Gel Arms3D adjustable armrests (height, front-back position, left-right angle)
- Lumbar support
- Self-adjusting lumbar support; no external lumbar devicesLumbar support height adjustment
- Warranty
- 15 Years; Fabric/Cushions/Arm Pads/Casters: 5 Years15-year quality warranty (for customers who register the product)
What users mention
From 7 Humanscale Liberty and 3 Sidiz T80 user reviews, most mentioned first. Green is liked, orange is a caution.
Comfort
Humanscale Liberty9 mentionsSidiz T804 mentionsDesign
Humanscale Liberty6 mentionsSidiz T802 mentionsBreathability
Humanscale Liberty6 mentionsSidiz T801 mentionSeat
Humanscale Liberty6 mentionsSidiz T801 mentionAdjustability
Humanscale Liberty4 mentionsSidiz T803 mentionsBack support
Humanscale Liberty4 mentionsSidiz T802 mentions
Questions
What do owners mention most?
Comfort for the Humanscale Liberty, and comfort for the Sidiz T80, based on review summaries.
Swap in a similar chair
Compare Humanscale Liberty with
Compare Sidiz T80 with
More comparisons
- Humanscale Liberty vs Herman Miller Aeron Load capacity: 400 lb on Humanscale Liberty; 300 / 350 / 400 lb on Herman Miller Aeron.
- Humanscale Liberty vs Steelcase Gesture Humanscale Liberty lists at $1,613 – $2,326; Steelcase Gesture at $1,599 – $2,560 (official stores).
- Humanscale Liberty vs Steelcase Leap V2 Humanscale Liberty lists at $1,613 – $2,326; Steelcase Leap V2 at $1,499 – $2,667 (official stores).
- Sidiz T80 vs Herman Miller Aeron Headrest: Headrest height / angle adjustment on Sidiz T80; None offered by Herman Miller on Herman Miller Aeron.
- Sidiz T80 vs Steelcase Gesture Headrest: Headrest height / angle adjustment on Sidiz T80; Optional on Steelcase Gesture.




