SAVE 8% OFF All Orders. Use Code ARIA8 at Checkout! Some restrictions apply.*

Osaki OS-4000T Massage Chair With Zero Gravity


SAVE $ 600.00

SAVE 8% OFF All Orders. Use Code ARIA8 at Checkout. Some restrictions apply.*

The Most Curated Selection.
World Class Service.
No Hidden Fees.
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  • Limited Time Offer - Order Now and get a FREE OS-109 Handheld Massager - a $129.95 value!

    The Osaki 4000T is one of the hottest massage chairs on the market.

    People love it for its incredible value.  This chair gives you everything you want for an unbeatable price.  Most chairs that have the features OS-4000T has are double price.

    You'll feel like you just spent an hour with a massage therapist when you get out of this chair.  Adjustable twin rollers mimic the feeling of human thumbs.

    Custom massage, just for you.  Before every session, the OS-4000T scans your body with high-tech sensors and adjusts the massage to fit the curvature of your spine, width of your back, and location of your muscles.  

    Truly ergonomic S-track. Designed to move perfectly along the shape and curvature of the human spine, the rollers will glide across your body giving you the perfect massage.

    2 Stage Zero Gravity.  The OS-4000T puts you in the perfect position to get the most out of your massage.  Developed by NASA, the Zero gravity posture relieves tension on your spine and other joints, while promoting circulation.  It allows all the weight of your body to be transferred from your joints into the chair leaving you feeling nearly weightless.  In the second stage, where is your eggs are raised above your heart, the incredible therapeutic effects can be felt immediately. 

    Advanced air massage technology.  Sitting in this chair, your body is surrounded on all sides by airbags that are able to push and squeeze you like massage therapist would.  The airbags inflate and deflate to stretch and twist your shoulders lower back, and hips.  New to the Osaki line is the next generation airbag technology which increases the volume and surface area of the massage while considerably reducing the number of airbags to 38.  This gives you a better massage and decreases the number of moving parts, which improves the lifespan of the chair.


    Heat therapy.  Two heating pads placed in the lower back region greatly enhance the therapeutic effects hope your massage.

    Auto recline and leg extension.  The OS-4000T reclines automatically, engaging the zero gravity position, and extends its legs to give you the best fit.  The chair will scan your leg and adjust automatically.

    Shoulder, lumbar and hip squeeze.  Airbags around your body inflate independently throughout the therapy, causing your body to twist and giving you a deep stretch.

    Calf and foot massage.  Multiple airbags along the sides and back of your legs and feet will inflate to give you excellent compression massage.  Rollers at the soles of your feet apply a concentrated pin-point kneeding massage.  The chair will adjust to fit in the length of your legs coming giving you the most ideal leg and foot massage.

    Arm air massage.  The new arm airbags give you a unique massage with the addition of small rubber bumps that invigorate the senses.

    Seat vibration. The seat vibrates at the back of your thighs to enhance the massage.

    Wireless controller.  You probably won't feel like reaching for the full size remote in the middle of your massage.  The OS-4000T provides a small wireless remote that you can hold during your treatment, if you want to make adjustments.

    Easy to use full size remote.  The chair has a large screen to easily see what functions are active.  Customize your massage and focus on the areas you need it most.  Adjust the intensity, speed and location of the treatment.  Select from these massage styles:

    • Kneading
    • Tapping
    • Shiatsu
    • Rolling
    • Combination
    • Swedish

    Why Buy From Us?
    - We are an authorized dealer and give you the full manufacturer's warranty.
    Amazing Service - We want you to be happy with your order, and we're here to help with any question or concern you have.
    Fast Shipping - We ship out all chairs fast!
    No Sales Tax - Since we're based in Portland, Oregon you'll never pay sales tax.
    We're a family owned business that cares!
    100% Guaranteed Lowest Prices - If somehow you find a lower price, we'll match it, even up to 6 months after your purchase.  See our guarantee for details. 

    • Zero Gravity Design
    • Foot roller
    • S-Track Movabel Intelligent Massage Robot
    • Six Unique Auto-programs
    • 6 Massage Styles
    • 5 Levels of Speed & Intensity
    • Calf Rest can be Lifted and Stretched
    • Auto Timer 5-30 Options
    • Hip Air Massage
    • Vibration Seat Massage
    • Shoulder Air Massage


    • Suggested user height: 5’2”-6’4” (feet)
    • Max User Weight: 265
    • Number of Motors: 7
    • Roller length: 30 inches
    • Amount of airbags: 48
    • Panel LED Remote on Pedestal with Removable Wireless Mini Handheld Remote
    • Timer Specifications: 5/10/15/20/25/30 Minutes
    • Material: Soft Synthetic Leather
    • Chair weight: 214lbs
    • Dimensions of the chair: 46L x 32W x 47H
    • Dimensions of the chair reclined: 76L x 32W x 47H
    • Assembly Required
  • At Aria Chairs, we'll make getting your order dead simple.

    Here's how it works.  If you have any other questions, please see our Shipping & Returns page for more details.

    Location-Based Additional Freight Costs
    In rare cases, shipping may cost more than the price you see and pay on our website. Why does this happen? What are your options if it does? See below for answers.

    Freight companies sometimes incur additional costs, because it costs them more to ship to some addresses than others.

    The reasons vary, but are most often due to remote locations, country roads, high freight tax jurisdictions, residential addresses, etc. When they incur this cost, they pass it on to us. 

    We won't know if your address is subject to this additional cost until our team starts coordinating your order, after you've paid for it. If you've been in contact with us before placing your order, we may be able to catch it ahead of time.

    Our website assumes that your address is not subject to these additional freight costs, and roughly 95% of the time, that assumption is correct. So, shipping rates listed on our website, and paid at the time of purchase, do not include these additional costs.

    For the 5% or so that are affected, there are a couple of options.

    1. Ship to another address. Most often, the additional cost is because the address is difficult to pull a very large truck into - often a building that is, or was previously a residence. In this case, they will have to offload your item(s) and load them onto a smaller truck, causing the expense.

    Most of our customers who fall into this category have another, more accessible commercial address. You can simply ship to the alternate address and avoid the cost altogether.

    2. Pay the additional $150. Nobody likes unexpected costs. We understand that. If we could warn you ahead of time, we really would. 

    Thank you for understanding.

    By ordering with us, you agree to these terms.

    Free Shipping
    The following applies to all orders that claim free shipping promotions.

    Our free shipping policy applies only to addresses that are not subject to location-based additional freight costs. Please see above for a description.

    To provide free shipping promotions, we have budgeted an amount that works for 95% of our customers.  We would not be able to offer these promotions if we budgeted the amount necessary to ship to all addresses.

    We try to do right by our customers, and we hope you'll understand if you are in the 5% that is subject to a location-based freight fee. 

    So, if there is a location-based additional cost to deliver your item, there are two options, as stated above.  Please see above for descriptions, but in summary, they are:

    1. Ship to another address. 
    2. Pay the additional cost ($150).

    We appreciate you and your business.

    By ordering with us, you agree to these terms.

    When will my order be delivered?
    Orders are usually shipped from the warehouse within 1-3 business days. Products that are made to order, including all pedicure chairs, can take longer and we will give you an updated timeframe once production has started.

    Depending on your location, you can expect your order to be delivered within 3-8 business days after it leaves the warehouse.

    What happens when I order?
    When you place your order, you will receive an instant order confirmation. When we receive your order, we will send the information to our fulfillment team for shipment.

    Will I get a tracking number?
    Of course! We'll send you tracking information as soon as your order is on the truck. The carrier will have an estimated time of arrival for you.

    Our standard delivery service will bring the chair to your curbside or front door. The chairs can be very heavy, so please make sure you have some help to bring it inside.

    Can you send my pedicure chair or salon furniture to my house?
    We can, but we try to avoid it. Freight deliveries to residential addresses are often delayed for days or weeks and costs significantly more.

    Can I return a product?
    Often yes, sometimes no. Your order is subject to the manufacturer's return policy.  

    Of course, if the product is defective or broken, our products always ship with insurance for damages, and your product is subject to the manufacturer's warranty for defects. 

    We will help you file a warranty claim with the manufacturer if necessary, and will need some documentation of the issue. 

    You must notify us within 24 hours if there are shipping damages, and we will help coordinate your insurance claim.

    Made to order (or custom) items are not returnable (including all pedicure chairs).

    Please see our Shipping & Returns page for details.

  • Not only do we deliver the best service to our customers, we also offer the best prices.  If you do find a lower price at another online store, just let us know and we'll match or beat it.  

    There are some limitations to our Best Price Guarantee:

    • When comparing other prices, we include the list price, shipping charges, and sales tax.
      • All our products include FREE shipping, and we never charge sales tax.
    • The competing price must be an online store without any retail locations.
    • The product must be in stock on the other website.
    • The other store must be an authorized retailer for the requested item.
    • The other store must be a reputable business.
      • We're not here to name names, but there are many websites out there that you don't want to do business with, and we won't match their prices.
    • The competing price must not be from an auction site or discounter, such as eBay or Overstock.

      Customer Reviews

      Based on 14 reviews
      Osaki 4000

      Great Massage chair, Easy to put together. Aria chairs very helpful and did what they said they would do. Over all a very pleasant experience . It did however scare my cat for a week or so. Stan


      I stikin LOVE THIS CHAIR! I have NO idea if the Shiatsu is enough to do my body any actualy physiological good but mentally and physically I sure can relax in it. I've gone to sleep in it after 5 mins more times than I can count.

      Great chair

      I have owned this chair for two trouble free years, I enjoy it two to three times a week for the last two years. Well worth the investment.

      Great chair

      I have owned this chair for two trouble free years, I enjoy it two to three times a week for the last two years. Well worth the investment.

      This chair does a very good job and was a great buy.

      This chair does a very good job and was a great buy.

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