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Osaki OS-4000 Deluxe Zero Gravity Massage Chair

by Osaki
Included Warranty: 3 year Limited Distributor
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ITEM# 15210025
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    ITEM#: 15210025

    Soothe your aching and tired body with this zero-gravity heated massage chair from Osaki. Six massage styles, with the ability to focus on the neck, shoulders and lumbar area, deliver welcome relief to any part of your body. Alternatively, customize your treatment with the manual massage feature for the upper body. Set the built-in timer to enjoy up to 30 minutes of pampering from this chair.

    This high-back massage chair comes in faux leather that wipes clean with a damp cloth for easy maintenance. Overhead and power surge safety protection along with a three-year limited distributor warranty provide peace of mind.

    • Osaki OS-4000 executive zero-gravity massage chair designed with a set of S-tracks and 3D technology for high-tech performance
    • Massage focuses on the neck, shoulders or lumbar area depending on the curve of the body for customized treatment
    • Manual massage mode and six massage styles, including rolling, kneading, clapping, shiatsu, Swedish and combo for versatility
    • Massage chair, remote control and instruction manual included
    • Timer for up to 30 minutes of massage for convenience
    • Five massage speeds and five intensity speeds to alleviate muscle fatigue and improve circulation
    • 110-volt power source
    • Overhead and power surge safety protection provide peace of mind
    • Accommodates a person weighing up to 250 lbs
    • PU fill and upholstery
    • Wipe clean with a damp cloth for ease of maintenance

    • Executive Zero Gravity design
    • Designed with a set of S-track movable intelligent massage robot
    • Special focus on the neck, shoulder and lumbar massage according to body curve
    • Six massage styles: Rolling, kneading, clapping, shiatsu, Swedish and combo
    • Manual massage for the upper body with full body, partial and fixed options
    • Relieves muscular fatigue and increases blood circulation

    • Brand: Osaki
    • Model: OS-4000
    • Package includes: Massage chair, remote control, instruction manual
    • Designed with a set of S-tracks and 3D technology
    • Zero gravity
    • Six massage styles
    • Timer: 5/10/15/20/25/30 minutes
    • Maximum operating period: 30 minutes
    • Speeds: Five settings for massage
    • Settings: Five intensity settings for air intensity
    • Equipped with overhead and power surge safety protection
    • Power source: 110 volt
    • Weight capacity: 250 pounds
    • Upholstery: PU
    • Upholstery fill: PU
    • Care instructions: Clean with a damp cloth
    • Additional materials: Metal base
    • Seat dimensions: 18 inches x 19 inches
    • Dimensions: 48 inches x 35 inches x 46 inches

    Assembly required

    Note: This product will be shipped using Threshold delivery. The product will be delivered to your door or the nearest ground-level entrance of your residence. Signature required upon delivery.


    Material Faux Leather
    Chair Type Massage Chairs
    Assembly Assembly Required
    Chair Back Height High Back
    Color Black, Brown
    Dimensions See Details
    Warranty 3 year Limited Distributor
    Model Number OS-4000
    Country of Origin China

    Customer Reviews

    5 Stars
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    1 Stars
    • Most Recent

    • Dated design, so-so ergonomics.

      For the price, this chair offers many functions... On paper. When compare to store brand massage chairs in comparable price range, the performance and ergonomics is quite behind. First of all, I bought this chair for my upper back and shoulder pain. The track in this chair has minimal curvature and no too conforming to your back, which make them pretty weak on the upper back. I have to manually set the chair beyond the angle of zero gravity setting( feet way above head) for the rollers to dig in. The rollers also don't come out far enough to "tap" or massage the top of the shoulders. Speaking of tapping, it definitely lacks oomph. At low, it feels like its pushing you side to side. At high, it feels more like vibration. This chair was advertised to have tons of airbags. The airbags for legs and thighs work better than expected. However the back and shoulders airbags seem to get in the way of the roller and just a big waste of space. The should airbags are quite narrow. I'm 6' 190 and I barely fit between the shoulder airbags. When they inflate, they squeeze my scapula together and the rollers just knead right on the bone, one of the worst design of the chair. With all that being said, its a half decent chair. Would I buy it again? Probably not. Do I use it 3 times a week? Hell yea! You just have to go customize your massage every time to fit your need and to get around the design flaws... And the preset programs are almost useless, complete random functions put together to call it a program. Go to a store and buy one that you can try before buying.

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    • Awesome massage chair

      The only con I can say about this order was the assembly process. It took my husband and I an hour to do and it was somewhat a pain in the rear but the end result was worth it. You can customize everything on this chair. I love the zero gravity feature, it measures your height and body dimensions to give you a more customized massage. The seats can also be heated if you prefer to have that feature on. We love this chair so much we ended up getting another one so we can relax together!

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    • Osaki OS-4000

      I purchased the OS-4000 Massage chair about 3 months ago it is everything a could of hope for and more! wish I would of purchased much sooner. I have a lower back problem and it helps after a massage to work a full day with out having any problems like I had before. I did have a problem when I first received the chair. and was taking care with in a week in a half after reporting the problem. great customer service I high recommended this chair to everyone Family & friends all over.

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    • This chair is amazing!

      My dad recently purchased the Osaki OS-4000. He suffers from diabetes and has lots of problems with his legs and back muscles. He received the chair within 3 business days of ordering! The quality of this chair is amazing! Not only does it have 2 stage zero gravity, it can recliner about 5" further after the 2nd stage into an inverted position. He uses his chair at least 3 times a day and has seen an improvement in his circulation and overall health. my mom is now using it too! Called into customer service to get a new copy of the owners manual (as he misplaced the original) and they were more than helpful. We received it within a few business days. Overall, this has been a great experience. We would recommend this chair!

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    • Most Helpful

    • The massage chair I ever wanted

      I purchased this particular massage chair after I got married recently. We were thinking of purchasing one even before, but we took some time to research in order to find the best one for us. We are pretty satisfied with what we got now because the massage itself is quite deep. I wish it was a little bit stronger, but overall we love it. I especially love the air pillow because I can feel the extra air bags, and it helps me relax. My husband loves when he reclines all the way since there is two stage of zero gravity. It hits more spots once he reclines especially his back area. I have some shoulder pains as well, and we didn't know how to get that point. When we called the customer service, they were very kind. Two people helped us by giving us very clear instructions and sending us a video link on Youtube. You should definitely check that out because it really helped us understand the chair better. The massage is not too strong as it hurts the bones yet it's strong enough to take care of muscle sore. We would surely recommend to our friends and family. This is such an amazing investment.

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    • Mrs

      Love this chair, the only thing I was not happy with is the fact that you have to put it together by yourself.

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    • Impossible to assemble

      This Chair arrived pretty fast, was excited to get it, and tried to assemble it right away. The instructions are confusing , and areas that need assembling are hard to reach under the chair. Impossible to put bolts on screw , because there is a metal bar in the way that cannot be moved. spoke to customer service about returning it, they told me it was buyers remorse , because the chair couldn't be put together, and I was responsible for return shipping.I called back later and spoke to someone else, and am in the process of trying to get this chair picked up and returned.

      Read More
    • I already have an OS-4000

      I have already purchase an Osaki 4000 for myself and place it in the living room. No I plan on getting a 2nd one for the Master Bedroom. Call me crazy, but I am spoiled and need extra attention before I go to bed and watch a game or two. I give 2 thumbs up and a 10 on the board.

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    • For Dear ol Dad

      Best Present I could have bought my Father. I love him and wish I could be there for him more often. This was a way to comfort him and let him know that I am still there for him no matter what. Thank you, Chris

      Read More

    Questions & Answers

    • Why did you choose this product?

      • Online Reviews and recommendations

      • sounds good

      Read more Read less
    • The OS-4000 comes in several models. The newest model is the OS-4000T which has foot rollers. Is this the 4000T or a different version.

      • Hello streak67, this model is listed as the OS-4000 Zero Gravity Massage Chair. It does not have foot rollers included. Thank you for shopping with us. Vicki H

      • The Osaki OS-4000T will be offered through Overstock during Black Friday Week and Cyber Monday!!!

      Read more Read less
    • does it massage the feet and arms?

      • Thank you for your inquiry, nina2014. This chair does massage your feet and arms. We hope this helps. Thank you for shopping with us.

    Shopping Tips & Inspiration

    Shipping & Returns


    Leaves our warehouse in 1-5 business days. * *

    1-4 week delivery after the item ships:**

    Delivered by freight carrier. See Oversized Item Delivery Policy.

    Oversized-Item Return Policy:

    Upon delivery, if you notice any damage or defects, you must note them on the shipping receipt and refuse delivery. Notify immediately in the unlikely event of damage. More Details


    This item cannot be shipped to Alaska or Hawaii. More details

    Oversized Item Delivery Policy:

    This item will be shipped via freight carrier to your home, excluding rural routes, remote areas not in close proximity to areas commonly serviced by freight carriers, islands, APO/FPO addresses, P.O. Boxes, Alaska and Hawaii. Please provide your daytime and evening phone numbers during check out so our carrier can contact you to schedule delivery. Refer to our Oversized Item Delivery Policy for additional information.
    More details

    For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.