Diffrient Smart Chair

View All humanscale

Diffrient Smart Chair

Designed by Niels Diffrient
Made by Humanscale


The Diffrient Smart chair is an intelligent mesh task chair with a striking linear aesthetic that complements any environment. Engineered to provide automatic lumbar support for every user, as well as simplicity and ease of use, Diffrient Smart offers comfort, style and flexibility. Diffrient Smart was created by designer Niels Diffrient and, like Humanscale’s Liberty and Diffrient World chairs, uses Humanscale’s revolutionary Form-Sensing Mesh Technology and mechanism-free recline for perfect support for every user.

The Diffrient Smart Chair does what so many of Humanscale’s products have done over the years. It presents a vision of what office furniture can do to achieve a universal comfort and functionality that forces a new way of thinking about how office furniture works in our workplaces.


Fixed arms in duron- with or without seat matching textile (standard Smart Only)

Height-adjustable arms in duron, with or without seat matching textile (standard Smart Only)

4D adjustable arms in duron, with or without seat matching textile (standard Smart and SmartPlus)


Technogel cushions maximize weight distribution


Soft casters only


Plastic base (standard Smart only)- Aluminum base (standard Smart and Smart Plus)



Supports user height range of 5’0” – 6’4” and weight range of 100 lbs – 300 lbs
Contoured seat cushions measure 19.25” wide and 2” thick 16.25” - 18.75” seat depth adjustment range
Chair weight: 34 lbs with arms, 31 lbs without arms