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Chair Comparison

If you’re ready to ditch that uncomfortable squeaky office chair, or you’re suffering working on a dining room chair, look no further. Ergolab welcomes you to the world of comfort, movement, and improved posture with our range of top quality ergonomic chairs from Humanscale.

Need help choosing the perfect ergonomic chair? The table below highlights key points to assist with selecting the most suitable Humanscale chair for you.

Humanscale Chair Comparison Chart
Freedom chairDiffrient World chairLiberty chairSmart chair
Chair Performance
Chair adapts to 95% of users, regardless of shape or sizeYesYesYesYes
Easy to useYesYesYesYes
Continuous motion throughout the dayYesYesYesYes
Supports bodyweight up to 139kgYesYesYesYes
Weight of chair17kg14kg15.4kg15.8kg
Tri panel mesh backrestNoYesYesYes
Seat height adjustabilityYesYesYesYes
Seat depth adjustabilityYesYesYesYes
Backrest height adjustabilityYesNoNoNo
Adjustable headrestYesNoNoNo
Armrests attach to backrestYesYesYesYes
Adjustable mesh seat depthNoYesNoNo
Weight sensitive automated recline tensionYesYesYesYes
Synchronous armrests that move up and downYesNoNoNo
Dynamic headrest (moves during recline motion) to maintain correct eye-level when viewing monitorYesNoNoNo
No more than 5 adjustable leversYesYesYesYes
Zero-tension knobsNoNoNoNo
No foam on front edge of seatNoYesNoNo
Hard casters (standard option - recommended for all floors excluding wood and tiles)YesYesYesYes
Product spec options available:
Graphite frameYesNoYesYes
Polished aluminium frameYesNoYesYes
Black polypropylene frameNoYesNoNo
Grey polypropylene frameNoYesNoNo
White polypropylene frameNoYesNoNo
Fabric backrest upholsteryYesNoNoNo
Fabric seat pan upholsteryYesYesYesYes
Mesh backrest upholsteryNoYesYesYes
Mesh seat pan upholsteryNoYesNoNo
Leather backrest upholsteryYesNoNoNo
Leather seat pan upholsteryYesNoYesYes
Lotus backrest upholsteryYesNoNoNo
Lotus seat pan upholsteryYesYesYesYes
Available in variety of (leather/mesh/fabric/lotus) colour optionsYesYesYesYes
Glides (No wheels attached to base)YesYesYesYes
Soft casters (recommended for wooden or tiled floors - available at up-charge)YesYesYesYes
After Sales Service
15 years warranty - structure of frameYesYesYesYes
10 year warranty - chair cylinderYesYesYesYes
5 year warranty - castersYesYesYesYes
5 year warranty - arm padsYesYesYesYes
5 year warranty - chair fabricYesYesYesYes
Spare components available to purchase and replaceYesYesYesYes
Warranty backed by 72 hour service level agreementYesYesYesYes
Sustainability that matters
Assembled in South Africa, reducing carbon footprintYesYesYesYes
Modular components for servicing on site if requiredYesYesYesYes
The entire chair will never be seen on a landfillYesYesYesYes
Declare label (material transparency)YesYesYesYes