Phone SupportToll Free: 1-888-508-3725
Monday - Friday9:00AM - 5:00PM (PST)
SF Hours: Mon - Fri 9AM - 6PM
Sat 10AM-4PM (PST)
PDX Hours: Wed - Fri 9:30AM - 4:30PM
Sat 10AM-3PM (PST)
A smarter way to sit
Quick ship chairs ship in about 10 business days. For custom configurations not available on this page check out the Smart Custom Order page.
Humanscale has once again partnered with the legendary designer and engineer Niels Diffrient to create the all new Diffrient Smart chair. Featuring Humanscale’s patented weight-sensitive, mechanism-free recline, Smart automatically adjusts to the body weight of each sitter to provide perfect recline support.
Available with 4D armrests, the Smart chair works with each user to create a comfortable seating option with minimal manual adjustments.
The upholstery and mesh options listed in the dropdown menu are currently approved for use with the Smart chair. Please check back periodically as we will update the available options as they are approved by Humanscale.
For a complete list of Humanscale upholstery and mesh options, please visit our
Humanscale upholstery page.
1. Self-Adjusting Recline
2. Pivoting Backrest
3. Form-sensing Mesh Technology
4. Contoured Seat Cushion
6. Body Fit