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Humanscale Diffrient Smart Chair

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    humanscale 10% promo

    Upgrade your office seating and change your life with the Humanscale Diffrient Smart Chair.

    With the introduction of the Diffrient Smart Chair by Humanscale into your work routine, you can have a chair that's ideally suited for any space in your office, from the boardroom to the breakroom. The ergonomic chair adjusts intuitively without many manual adjustments, and features a weight-sensitive recline mechanism designed to react to individual bodies, with form-sensing mesh delivering additional support on three panels.

    Not only is the Diffrient Smart Chair optimally ergonomic, it's a stylish addition to most modern offices that need a serious seating upgrade.


    • Intuitive weight-sensing recline mechanism eradicates need for manual adjustments
    • Tri-panel, non-stretch mesh back provides complete comfort and superior lumbar support
    • Sculpted seat cushions designed to support your body ideally
    • Optional deluxe armrests offer full range of height and width adjustment
    • Lightweight modern design
    • Sustainable manufacturing process
    • Made in USA


    Chair height 40" - 44.8" H
    Adjustable armrest height 6" - 9.6" H
    Seat height 17.63" - 22.8" H
    Seat depth 16.25" - 18.75" D
    Weight capacity 300 lbs

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    Choose from a variety of arm options available on your Diffrient Smart Chair:

    • No armrests
    • Fixed height armrests with a durable Duron foam
    • Fixed height armrests with a durable Duron foam covered with upholstery to match your seat cushion
    • Height-adjustable armrests with a Duron arm pad
    • Height-adjustable armrests with a Duron arm pad upholstered to match your seat cushion
    • 4D adjustable armrests with a Duron arm pad
    • 4D adjustable armrests with a Duron arm pad with matching upholstery

    Our recommendation: Most people will benefit from having adjustable arms


    Frame Color

    The frame of the Humanscale Diffrient Smart Chair is available in three colors:

    • Black frame with black trim (standard)
    • Dark Gray Frame with Brushed Aluminum Trim
    • Black Frame with Brushed Aluminum Trim

    Back Mesh

    The backrest of the Humanscale Diffrient Smart Chair is available in the following mesh styles. Please note that certain meshes may cause a longer lead time than others. To check lead time on a certain configuration, please give us a call at 1-800-531-3746 before placing your order.


    Dash is one of the newest meshes available in the Humanscale line. It is characterized by its strength and durability.

    Monofilament Stripe

    The luminous quality of each individual monofilament strand creates a translucent effect, while also providing strength and durability.

    Silver Check

    This brilliant weave of monofilament strands and silver-coated yarns offers resiliency combined with a low abrasion factor.


    Pinstripe offers a simple stripe pattern in a variety of enlivening colors.


    Catena offers a unique pattern in a variety of modern colors.


    Seat Fabric

    Wave - Grade 1

    This four-way stretch textile with a three-dimensional wave pattern offers a range of brilliant colors taken from nature. It exceeds all standards for contract upholstery.

    Vellum - Grade 1

    Constructed from a blend of nylon, Cordura and elastic yarn, this four-way stretch textile offers a pleasing texture, while providing the extreme durability required for long-term use.

    Lotus - Grade 1

    This four-way stretch textile is water repellant and easy to clean, making it an ideal textile for healthcare and hospitality environments. Its polyurethane finish with nylon backing boasts a soft texture while offering exceptional durability. It exceeds all standards for contract upholstery and healthcare tests.

    Sensuede - Grade 3

    Sensuede was developed to be the best and most luxurious engineered suede available. The faux suede's soft touch comes from the use of breathable and wrinkle resistant recycled microfibers that are finer than a human hair but are extra-strong, resulting in a very resilient fabric. This material also was selected because of its environmentally sensitive content and manufacturing process.

    Vicenza Leather - Grade 0

    A lightly corrected, aniline dyed leather produced from European hides. It receives a special retannage that enriches the leather and tightens the grain.

    Bizon Leather - Grade 1

    Bizon is a durable, water-resistant leather suitable for a wide range of applications. The combination of a special retannage and technically-advanced finishing process results in a leather that is not only water-resistant but also practical for applications that require a durable finish.

    Cervo Leather - Grade 3

    Cervo is chromium tanned and aniline dyed. The unique tannage approximates the rich luxurious suppleness of deer skin. The clarity and depth of the aniline dyes provide a distinct beauty enhancing all the natural characteristics. Cervo is thicker than the other naked leathers in our collection. Specialized milling adds additional character providing a soft pebble grain texture unmatched by any other leather in its class.


    Box Stitching Color

    Choose from a variety of different color box stitchings for your chair. This option is only available for leather upholstery.

    Box Stitching Colors Humanscale Liberty Drafting Chair

    Seat Height

    The Humanscale Diffrient Smart Chair is available in your choice of four cylinder heights. Seat heights are measured from the floor to the compressed front center of the seat cushion:

    Standard 16'' - 21'' H
    Low 15.25'' - 19.5'' H
    Tall 17'' - 22.25'' H
    Return to height 17.7'' - 19.9'' H


    The Humanscale Diffrient Smart Chair is available with your choice of standard casters or soft casters for hard floors.

    Standard Hard Casters 2 1/2'' double-wheeled for carpeted floors
    Soft Casters 2 1/2'' soft double-wheeled for hard floors


    The Humandscale Diffrient Smart Chair can be ordered with either standard plastic components or CAL 133 compliant components.

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    Warranty Information

    This product comes standard with a 15-year warranty.

    Return Information

    • Return windows close 30 days after you receive your item.
    • You are responsible for obtaining a Return Merchandise Authorization, the cost of shipping, and potential restocking fees, if the item has been opened.
    • To start a return, or to view the full returns policy, click here.
    Your Cost $949.00 List Price: $1,080.00
    Ships Free (US48)
    Ships in 2-3 weeks

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    Bulk Deals

    In many cases, we can offer bulk quantity discounts for purchases or smaller orders made over an extended period of time. Bulk deals are based on anticipated volume and the products you've selected. We can also provide you with brochures and swatches to assist in your purchasing decisions.

    If you would like to request a quote, we can be reached via phone (800-531-3746), email (, or live chat from 8am - 7pm Monday - Friday and from 10am - 6pm Saturday.

    Swatch Request Form

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