Osaki OS-4000CS Massage Chair

You Save 75% ($7,500.00)

Customer Reviews

Based on 8 reviews
What a relief!

I bought this chair for my father to gift to my mom. It arrived in two boxes on two different days, but it did arrive way before Christmas, so that was awesome! My father said that it was very easy to assemble and my mom loves how comfortable it is at soothing her sore muscles.

Extraordinary value and versitility

Every member of the family uses the chair every day. The zero gravity, heating, foot massage and bluetooth features by far exceed expectations. We'd recommend this unit to anyone.


Assembly was easy, chair looks solid, the foot massage is awesome, heating function works great, and provides excellent relief for lower back pain. Over all its really impressive.

So Happy!

Omg this chair is AMAZING . It was very easy to assemble and massages wonderfully. I am very happy to have it. I'd highly recommend it!

Best Massage chair

It's a great product and seller is top class. The massage chair relieves body ache in lot of areas. It was easy to assemble.The heating options, the zero gravity and to select on specific parts for heat and roller massage is really helpful.

Osaki OS-4000CS Massage Chair

User Maximum Weight: 260 lbs


  • L-Track Massage
  • 3-Level Shoulder Adjustment
  • Space Saving Technology
  • Heat on Lumbar
  • Foot Air Massage
  • Zero Gravity
  • Dual Action Massage

  • 4000cs banner

    OSAKI OS-4000CS

    The Osaki OS-4000 CS is part of the bestselling OS-4000 Series, offering an array of innovative features like space saving technology, L-Track Massage, Adjustable Shoulders and Zero Gravity. Each chair in the OS-4000 series has something unique to offer.

    Computer Body Scan

    Computer Body Scan

    Equipped with the latest technology, the massage rollers map out the back’s curvature with great accuracy, translating into a more effective massage and hitting all the key areas. Regardless of your body type, this highly advanced chair will self-adjust making each massage experience feel customized.

    Space Saving

    Space Saving Recline Technology

    Typical massage chairs consume a more space due to the chair being in a reclined position. Massage chairs require up to 3 feet behind the backrest for the chair to fully recline. Titan’s innovative design team has engineered a space saving technology that slides the chair forward as the chair reclines. Fully reclined this chair can be positioned within 6 inches of a wall for maximum space saving.

    L-Track Massage

    L-Track Massage

    L-Track system massages from the neck, past the glutes, and down to the back portion of the thighs. The track in which the massage heads move are curved to contour the back and glutes area.

    Zero Gravity Massage

    Zero Gravity

    Inspired by NASA technology, the Zero gravity position is the perfect position to enjoy a massage, aligning your back relative to your thigh at an optimal level of comfort. When reclined into the zero gravity position, the complete weight of your back is virtually supported by the backrest which maximizes the intensity of the massage. This feature improves spinal decompression and decreases muscle tension of the spine. There are 2 stages of zero gravity, the 2nd being more reclined. When reclined fully, to where your legs are higher than your heart level, the therapeutic effects are incredibly effective and may be felt immediately.

    Lumbar Heating Pad

    Lumbar Heating Pad

    On each side of the lower lumbar area there are individual heating pads. The heat therapy is a great compliment to the roller and airbag massage. Heating the body’s temperature is known to increase blood circulation and loosen tense muscles. The heating pad is not intended to exceed more than 30 minutes of usage a day.

    24 Airbag Massage

    24 Airbag

    Osaki strives to make its chairs efficient and extremely reliable. Other brands will market their chairs to have 70+ airbags for a full body massage. The engineers believe with more airbags and more valves, the more strain the air pump endures. With more moving parts there’s a greater chance of something failing. Osaki has been engineering its chairs to reduce the airbag count and at the same time increasing the surface area by using more pliable and durable material which have received great feedback. All 24 airbags are strategically placed to optimize the squeezing effect of the shoulders, arms, hands, hips, calves and feet.

    Adjustable Outer Shoulder Massage

    Adjustable Outer Shoulder Massage

    Osaki has taken custom fitting to a whole new level by adding adjustable outer shoulders. The outer massage airbags are typically stationary and depending on the height and width of the user, the shoulder massagers can be ineffective because of positioning. With the ability to adjust to 3 different widths, the user can improve the strength and fitting of the outer shoulder massage.

    6 Massage Styles


    6 Massage Style - Kneading, Tapping, Shiatsu, Rolling, Kneading&Tapping, Kneading&Shiatsu



    Product Name Osaki OS-4000CS
    Power Supply 110~120V AC
    Rated Frequency 50/60 Hz
    Dimension(LxWxH) Upright: 63.4" x 30.7" x 47.2"
    Reclined: 78" x 30.7" x 33.9"
    Chair Weight 220 lbs
    Auto Timer 5/10/15/20/25/30 minutes
    Max. User Height 6'4"
    Min. User Height 5'0"
    Max. User Weight 260 lbs