Humanscale Diffrient Smart Chair Quick Ship


Always Free Shipping

Ships Free in 10 business days

Current Stock:
Adding to cart… The item has been added

Diffrient Smart chair is a high quality mesh task chair that is a striking addition to any office thanks to its linear, geometric design that easily integrates into any space. With a unique U-shaped back and minimal lines, the Diffrient Smart chair also features height adjustable 'Duron' capped arm rests that are attached to the back of the chair, so they move with the user for dynamic support. The black epoxy finish ensures Smart’s longevity, while its automatic recline supports every body type that sits in it. Diffrient Smart’s revolutionary tri-panel mesh backrest offers immediate support and allows the user to engage in a healthy, ergonomic posture. The Humanscale Diffrient office chair is warrantied for 15 years by Humanscale and is certified for 24/7 multi-shift usage for sitters up to 300 pounds.  

  • 3 color configurations (see below)
  • Size fits more than 95% of the population
  • Injection molded structural integral color plastics
  • Die cast aluminum outer frame with powder coating (Black)
  • Self adjusting intelligent recline mechanism eliminates all the adjustment fuss
  • During recline the angle between torso and legs opens up for better body function
  • User maintains near-constant eye level during recline
  • Pivoting backrest adjusts during recline for optimal spine support
  • Form-Sensing non stretch mesh back creates body-fitting contours for a customized support
  • Self adjusting built in passive lumbar support
  • Back mesh is low abrasion and modular for easy replacement if damaged
  • Height adjustable Duron arms adjust +- 5"
  • Contoured seat cushions with high resilient foam padding
  • Heavy duty base with polished accents
  • 3" heavy duty casters
  • 300 pound weight certified for 24/7 multi-shift applications 
  • 15 Year Humanscale Warranty
  • Please call or live chat us for your very best price
Cylinder Options
  • 16.5” - 20.75” standard cylinder chair
  • 14.875” - 17.875” low-cylinder chair
  • 17.625” - 22.625” tall-cylinder chair
  • 20.75” - 28.25” 8”high-cylinder chair 17.125” - 19.75” 

Monofilament Mesh Back and Seat Color Combinations

  corde-4-grade-1-black2.png  Black Monofilament Back and Corde4 Black Seat with Black or Dark Grey Frame                         

   fourtis-grade-1-black.jpg  Black Monofilament Back and Fourtis Black Seat with Black Frame  





We are an authorized Humanscale retailer. For special pricing requests, information or samples on this or any other Humanscale product please contact us directly.



Create Environmentally Friendly Spaces with Humanscale

Humanscale is passionate about helping you design projects with minimal environmental impact. 

Humanscale offers options for customers to “close the loop” and dispose of products in the most responsible way possible. Rather than sending them to landfills, we would like to make it easier for our customers to repurpose their products. 

Download more information on this program >



Overall Dimensions:
26.5" W x 16.25”– 18.75”D x 39” - 43.25”H
Seat Width:
Seat Depth:
16.25”– 18.75”
Seat Height with Standard Cylinder:
16.5” - 20.75”
Backrest Width:
Backrest Height:
Distance Between Arms:
Armrest Height:
5” – 9.6”
Base Diameter:
All other seating and products detailed in a current Humanscale Price Guide, unless otherwise specified 15 Years, 24/7 Warranty All other products NOT detailed in a current Humanscale Price Guide Varies; consult your Humanscale representative for details *The warranty on the Float Table only applies to the Float Table Base and only if used with a TableTop purchased from Humanscale. Modifying or tampering with any part of the Base will render the warranty void. ** Note: Ballo is not a task chair. It has not passed the BIFMA or European EN standards for office seating. The Ballo in an exercise chair that is designed for dynamic seating and frequent movement. All Ballo instructions should be followed to ensure a comfortable experience. These warranties are available to the original end-user customer only and are non-transferable. For these warranties to be valid, the Humanscale product must have been purchased directly from Humanscale and/or an authorized dealership, distributor, retailer and/or reseller of Humanscale products. If products are procured through an authorized dealership, distributor, retailer and/or reseller, the end-user customer must be registered with Humanscale for the warranty to be in effect. Humanscale warrants that, at the time of customer’s receipt, the product will be in good working order and will be free from defects in materials and workmanship for the duration of the warranty term, as set forth above. These warranties do not apply to normal wear and tear or damage caused by accident, neglect, product abuse, misuse and/or failure to follow instructions relating to the product’s installation or intended use. Humanscale will not be responsible for damage due to service, maintenance, modifications or tampering by anyone other than a Humanscale authorized representative. Humanscale will not be responsible for injury or damage caused by or associated with the installation and/or use of products in any manner other than in strict conformance with the instructions set forth in its installation manuals and instruction sheets and/or product literature. These warranties do not cover damage caused by a carrier or transportation of the product from one location to another, or alterations made by owner. Humanscale does not warrant damages or defects to the products under the following conditions: an Act of God, damage from electrical power problems, usage of parts or components not supplied by Humanscale, failure to perform preventative maintenance, or damage caused by peripherals not supplied by Humanscale. In the event a product or product part is defective in material or workmanship during the warranty period, and Humanscale receives written notice of the defect within the warranty period, Humanscale will determine with customer if the defect is covered under warranty. Humanscale, at its option, may repair or replace the defective product or product part determined to be under warranty with the same or comparable product or product part as determined by Humanscale, at customer’s location or at a designated Humanscale location. The labor costs associated with the repair of the product or product part may be the responsibility of Humanscale if the product or product part is determined to be under warranty. Humanscale must pre-approve the labor costs prior to the repair or replacement of warranty products or product parts. Customer must contact Humanscale to obtain a Return Authorization through the Humanscale Customer Service Department. Performance of any repair or replacement does not renew or extend the warranty period. If, after examining and testing a returned product or product part, Humanscale determines that the product or product part is not defective, Humanscale will notify customer and return the product or product part to customer. Customer will be responsible for the freight charges associated with the return of non-defective products or product parts. To return a product or product part for repair that is not covered by warranty, Customer must request a Return Authorization through the Humanscale Customer Service Department. Customer will bear the costs of labor and freight charges associated with non-warranty repair. Customer will be charged a standard repair fee, specific to the product, for any product that is repaired outside of the warranty period. Repairs on products out of warranty also carry a 90-day warranty, effective the day that Customer receives the repaired product or product part. For products that are not covered under warranty: Customer may upgrade to a newer, functionally equivalent product at the list price; the product or product part will be returned to Customer; or Customer can request in writing that Humanscale dispose of the product or product part for Customer, in which case a fee may apply as designated by local law. DISCLAIMER THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER REPRESENTATIONS, WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED REPRESENTATIONS, WARRANTIES OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, NON-INTERFERENCE, AND ALL OTHER WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE. Humanscale does not warrant that customer’s use of the Humanscale product will be uninterrupted or error free. Any implied warranties that may be imposed by law are limited in duration to the Limited Warranty period, to the greatest extent allowed by law. Some states or countries do not allow a limitation on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages for consumer products. In such states or countries, some exclusions or limitations of this Limited Warranty may not apply. This Limited Warranty is subject to change without notification.