2D | L-Track | Zero Gravity | Foot Rollers | Full Body Air Compression (24 Airbags) | Space Saver (6") | Body Scan | Lumbar Heat | Adjustable Shoulder Massage
The Osaki OS-4000LS is part of the bestselling OS-4000 Series, offering an array of innovative features such as L-track massage, space saving technology, Adjustable Shoulders and Zero Gravity. Each chair in the OS-4000 series has something unique to offer and is sure to meet your needs. The 4000LS is suitable for people up to 6'4" tall and 272 pounds with an intensity level of 6-7.
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.
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.
Full Body Air Compression (24 Airbags)
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 of the Osaki 4000LS are strategically placed to optimize the squeezing effect of the shoulders, arms, hands, hips, calves and feet.
Upon sitting into the Osaki 4000LS, the smart body scanning begins to map out your shoulder width and height in order to customize your massage specific to your body type. Regardless of your body type, this highly advanced chair will self-adjust making each massage experience feel customized.
Heat Therapy (Lumbar)
The Osaki 4000LS features heat therapy to the lumbar 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.
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, you'll be able to improve the strength and fitting of the outer shoulder massage with the Osaki 4000 LS.
Space Saving Recline Technology
Most massage chairs require up to 2 feet behind the seat when fully reclined, but the Osaki 4000LS only requires 6 inches of space making it perfect for those with smaller spaces. The chair slides forward while reclining in order to accomplish this.
The Osaki 40000LS has reflexology rollers in the bottom of the footrest which targets the acupoints along the bottom of your feet giving your feet a much-needed break. This often overlooked part of the body has several nerve endings as well as we happen to just think that it feels good.
The easy to use remote control of the Osaki 4000 LS features an LCD screen to show what functions your massage chair is currently performing. The functions and features are quickly at your fingertips and very easy to interpret and figure out.
The Apex, Osaki and Titan brands are all covered under the same warranty policy of Titan Chair, LLC. Titan offers a very comprehensive warranty package that covers parts, labor and structural framework.
Feel free to contact customer service at 1-888-848-2630 with any questions you may have or service related help that you may need.
3 Year "Rock Solid" Warranty guarantees that your qualified product will be replaced or repaired, without cost to you, should it be deemed defective because of faulty parts, workmanship or structural defects within the first 3 years of ownership (limitations may apply).
Year 1: Parts, Labor and Structural Framework Year 2: Parts & Structural Framework Year 3: Structural Framework
4 YEAR EXTENDED WARRANTY ($150)
For an additional $150, you can extend the standard warranty to 4 years of very solid coverage.
Year 1 & 2: in-home service covering Parts, Labor and Structural Framework Year 3: Parts & Structural Framework are covered Year 4: Structural Framework
5 YEAR EXTENDED WARRANTY ($250)
You can extend your warranty up to 5 years.
Year 1 - 3: in-home service covering Parts, Labor and Structural Framework Year 4: Parts & Structural Framework are covered Year 5: Structural Framework
5'1" - 6'4"
Max Weight (lbs)
3 Year Limited Warranty
Type of Roller
Length of Roller
Roller Glute Massage
Roller Width Adjustment
Roller Speed Adjustment
Roller Intensity Adjustment
Removable Back Pad
Body Scan Technology
Deep Tissue Massage
Kneading, Tapping, Shiatsu, Rolling
Spot /Partial Massage
# of Airbags
Arm, Calf, Foot, Hand, Hip and Thigh, Upper Arm and Shoulder
Airbag Intensity Adjustments
Ottoman Length Adjustment
Slim LCD Remote
Dimensions Upright (L" x W" x H")
63.4" x 30.7" x 47.2"
Dimensions Recline (L" x W" x H")
78" x 30.7" x 33.9"
Massage Chair Weight
Number of Motors
Big Box Size (L" x W" x H")
55"L x 32"W x 40"H
Big Box Contents
Small Box Size (L" x W" x H")
24"L x 24"W x 24"H
Small Box Contents
Click Here to view the Manual.
All of our items have a FREE SHIPPING OPTION within the contiguous United States (we will need to quote out all Alaska, Hawaii, Puerto Rico and Canadian orders)
We strive to ship your items as fast as humanly possible--and try to regularly beat our goal of 5 business days from your order date. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at firstname.lastname@example.org.
All orders canceled after 48 hours are subject to cc administration fees (since those are not refundable to us), if your order has not shipped.
If you choose our free shipping option,you can expect to receive your item curbside within 7-10 business days of your item shipping--oftentimes sooner. Our carriers will typically bring your chair to the front door for you--many of our chairs come in 2-3 boxes. Oftentimes, the chair arrives fully reclined in one big box with the armrests in another box and the footrest in the last box. Typical assembly requires attaching the armrests and the footrest. In some cases, a pedestal for your remote. We have many installation videos available on our site and youtube channel. If you do decide to go with curbside delivery, expect to have help with moving the chair into your home and desired location as many of our chairs are quite heavy.
A dolly (or 2)will greatly assist in moving your chair to the right location in your home
Tip for moving your chair once it is assembled: fully recline your chair; place dolly next to the chair and "tip" chair onto its side on the dolly. You will then be able to roll your chair wherever you would like! (Note: this is not advisable for the OHCO M.8 and would void your warranty)
If you choose white glove delivery, there will be an additional charge of $250. Your item will be delivered to your home, placed in the room of your choice exactly where you want it and set up. Because we have to use an outside contractor for this service, your delivery time will be extended by one week. Also, if you have a difficult location (several stairs with challenging turns etc) please send us pictures so that we can make sure the delivery company is prepared. If they arrive and it requires a 3rd man, there'll be extra charges such as an extra return trip and fee--we don't want you (or us) to have any surprises. Please really think about if you need white glove delivery--it's a lot more challenging and expensive to add it after your order has been placed.
We will do everything possible to ensure that your item arrives in the same condition that it left the manufacturer. Any product damage or loss is the responsibility of the shipping company, not Wish Rock Relaxation.
BEFORE you sign the shipping weigh bill, please THOROUGHLY INSPECT YOUR ITEM.Signing for receipt of a damaged product removes the liability of the shipping company and Wish Rock Relaxation. Once you accept your shipment as non-damaged, the item is yours.
***If your item looks questionableupon delivery, CALL US at 803-574-9474 (WISH) and we'll immediately get the manufacturer involved while the Shipping Agent is on-site.****
30 Day Return Policy
We want this to be one of the best purchases that you've ever made! If you don't completely love your item, we will work with you to get into the right chair OR you can simply return it within 30 days of the ship date.
If you'd like to exchange your chair for another chair we carry, we would love to keep your business and will work to absorb all the fees to help you get into a better chair to meet your needs.
Item must be repackaged in it's original packaging, and must include all parts, hardware, controller and accessories. If you no longer have packaging, you will need to supply or pay for repackaging and likely a white glove pickup.
Applies only to orders within the continental US. If we've shipped a chair to you in Hawaii, Alaska, Puerto Rico or abroad the shipping fees were likely $800-$1200 in one direction.
In the event that you have technical/quality issues with your chair, we will work with you and the manufacturer to make sure that we either repair your chair, replace it or exchange it for an equal or better chair. We will do everything possible to make this right. If you choose to refuse repair or replacement, you will be responsible for the shipping in both directions and any fees associated.
FFL Brands (OHCO, Panasonic, D.Core and Positive Posture) no longer accept any returns; because of this, FFL Brands are now completely excluded from our return policy.
Restocking fees are also typical in the industry. Specifically, several of our suppliers do charge them -- Human Touch, Cozzia (Svago, JP Medics, ErgoTec) and UltraComfort are 15% while Synca (Johnson) is 20%.
We will work with you to absorb the shipping and restocking fees if you choose to switch to another chair with us. If you end up wanting to return your item, you will be responsible for the shipping in both directions and any applicable restocking fees.
Lowest Price Guarantee
We are committed to offering you the best prices possible onlinewith the absolute best possible value. So committed, that we are willing to put our money where our mouth is.. and offer you a 30 day best price guarantee where we'll refund you the difference--even from our own site! It's important to us that you feel confident that you are getting the absolute best price possible. This does exclue all Luraco chairs.
It's really simple too--if you find a better price available online, just email us a link to the same product on our website or on our competitor's website within a month of your order date and we will get you your money back.
If you find an online retailer who is selling the same item at a lower price, you can call us as you are going through the buying process, we'll verify the price and match it! Easy - Peasy! Also, feel free to contact us / call us at 803-574-WISH (9474) ----yes, we work that quickly. ;)
Here's what you need for our 100% Price Guarantee:
Before requesting your Price Match Guarantee, you must purchase the item from Wish Rock Relaxation
Competitor website cannot be a discounter / auction etailer (ebay, overstock, etc)
Competitor must be an online store; they may not have a retail location
Promotions such as rebates and BOGO (buy one get one) are not eligible
Competitor must be an Authorized Retailer of the item
Item must be in stock on the competitor's website
The Price Match Guarantee includes the item price and the shipping charges; DOES NOT include sales tax.
Excludes Luraco Chairs
Start Here >> A message from our Top Rock
We are a Veteran/Family owned company out of Golden Colorado. We take the business of keeping you happy at the top of our priority list. We genuinely love what we do and look forward to assisting you as best we can through the buying process.
Lowest Price Guarantee: we really mean it! Call us with proof of whatever other deal you've found and we will meet it or beat if possible. *Excludes Luraco*
Free Shipping: we ship your item for free to the contiguous United States. If you are looking to ship to Hawaii, Alaska or Canada we will need to work up a quote. We work hard to get your orders in to our manufacturers as fast as humanly possible and usually have BOLs within 48 hours if not sooner. You will need to assemble and place your chair exactly where you'd like it. If you think you'll need white glove delivery, please let us know. ($250 extra + another week in delivery time)
30 Day Free Returns: Don't love your massage chair? You can return your order within 30days of the purchase date, no question asked for FREE. (see our Free Return Policy)
No Hidden Charges: one of the great benefits of buying online! Even if you live in our home state of CO, what you see is what you'll pay--nothing more!
Financing Made Easy*: we are proud to be the first online-only financing partner of Synchrony Bank's online platform, SatrisFi. Depending on your credit and the price of your item, you can qualify for up to 5 years of 0% Financing. Check out our differentfinancing options here.
Norton Shopping Guarantee: $10,000 of identity theft protection, $1000 purchase guarantee and $100 Price Guarantee.
World Class Customer Service: we whole-heartedly believe in going the extra mile for you. We have and we will work hard to help you find the best chair to meet your needs and budget. If something doesn't go as planned, we've even been known to send gourmet chocolates to help take the bad taste out of your mouth. ;)
Veteran/Family Owned & Operated: our founder is a US Naval Academy Grad and was one of the first women to serve on warships. She is a proud veteran and mother of two girls.
Safe & Secure: our site offers 256 bit encryption to assure your safety.