--- product_id: 7391616 title: "OS-4000" brand: "osaki" price: "$2717.97" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/7391616-os-4000 store_origin: US region: United States of America --- # S-Track Roller System for consistent deep tissue massage Computer Body Scan for personalized massage precision Zero Gravity Recline for ultimate weightless comfort OS-4000 **Brand:** osaki **Price:** $2717.97 **Availability:** βœ… In Stock ## Summary > πŸ›‹οΈ Elevate your unwind game with the Osaki OS-4000 β€” where tech meets total relaxation. ## Quick Answers - **What is this?** OS-4000 by osaki - **How much does it cost?** $2717.97 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/7391616-os-4000) ## Best For - osaki enthusiasts ## Why This Product - Trusted osaki brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Precision Massage:** Advanced Computer Body Scan customizes every session to your unique body shape. - β€’ **Full-Back Coverage:** S-Track rollers follow your spine’s natural curve for consistent, soothing pressure. - β€’ **Weightless Relaxation:** Zero Gravity positioning reduces spinal pressure and maximizes massage intensity. - β€’ **Smart & Simple Control:** Wireless remote lets you effortlessly tailor your massage experience anytime. - β€’ **Luxury Meets Durability:** Upgraded PU upholstery combines sleek taupe style with long-lasting comfort. ## Overview The Osaki OS-4000 is a top-tier zero gravity massage chair featuring a 30-inch S-Track roller system that massages from neck to lower spine with consistent pressure. It uses advanced computer body scan technology for a personalized massage experience, complemented by full-body air massage, seat vibration, and heat therapy. Upholstered in durable taupe PU, it offers both style and comfort, controlled via a wireless remote for seamless relaxation. ## Description The OS-4000 massage chair features beautifully updated upholstery and includes Zero Gravity, a 30 inch Roller Stroke, Body Scan Technology, S-Track Massage Robot, full body air massage, seat vibration, and heat therapy for your back. ## Features - ZERO-GRAVITY MASSAGER: Zero-gravity massage chair allows for the complete weight of your back to be virtually supported by the backrest, maximizing the intensity of the massage - S-TRACK ROLLER SYSTEM: S-track system allows the roller heads to massage along the back from the neck down to the lower spine with a consistent pressure in the massage, along with a comfortable support. The typical massage tracks, being linear, create an inconsistency in pressure applying weak massages in the neck and lower back. - Computer Body Scan System - Upgraded PU Covering for increase durability and comfort ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | Osaki | | Color | Taupe | | Product Dimensions | 52"D x 31"W x 34"H | | Size | 1 Count (Pack of 2) | | Back Style | Solid Back | | Special Feature | Durability | | Product Care Instructions | Dry Clean | | Unit Count | 3.0 Count | | Recommended Uses For Product | Relaxing | | Pattern | Solid | | Room Type | Living Room | | Age Range (Description) | Adult | | Included Components | Power Cable, Remote | | Model Name | OS-4000 | | Arm Style | Armless | | Surface Recommendation | Hard Floor | | Furniture base movement | Rock | | Indoor/Outdoor Usage | Indoor | | Seat Height | 34 Inches | | Seat Depth | 19 inches | | Fill Material | Foam (Polyurethane) | | Leg Style | Straight Leg | | Reclining Position Count | >1 | | Tilting | No | | Is Customizable | No | | Is Foldable | No | | UPC | 045635065093 045635065130 | | Form Factor | Plastic | | Manufacturer | Osaki | | Item Weight | 48.2 pounds | | Item model number | OS-4000 | | Is Discontinued By Manufacturer | No | | Weight | 255 Pounds | ## Product Details - **Brand:** Osaki - **Color:** Taupe - **Product Dimensions:** 52"D x 31"W x 34"H - **Size:** 1 Count (Pack of 2) - **Back Style:** Solid Back ## Images ![OS-4000 - Image 1](https://m.media-amazon.com/images/I/512BMVhiITL.jpg) ![OS-4000 - Image 2](https://m.media-amazon.com/images/I/71A7wxQg-GL.jpg) ![OS-4000 - Image 3](https://m.media-amazon.com/images/I/51IS49kraLL.jpg) ## Questions & Answers **Q: Is the seat hard or soft? Is it comfortable to just sit in...no massage?** A: Hi M. Walls,It is soft. But not super comfortable to sit, because you feel the rollers in the back.Sincerely, Maurizio (MY DREAM COME TRUE MART) **Q: Do I need to install myself after the delivery? If not, how to request white glove service?** A: By Osaki Official Seller on November 12, 2021 **Q: Where does the chair come from in the US?** A: We ship out of California and Texas. BACKSTORE **Q: Will it be delivered assembled? Will the deliverymen bring it to the room i want it in?** A: No, you would need to install the chair when you receive it. The shipping is curbside only, this is not in-home delivery with assembly service. If you need in-home delivery in a room of your choice with installation included, that will be extra $250 for OS-4000 model. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good device *by I***Y on May 15, 2014* I use it for just several day so far so, it's just first impression for now. The chair is of very good quality: solid design, components fit well (it comes disassembled), leather (or whatever it is) is of good quality. Chair has a lot of settings which I didn't yet investigate. Though, there are four presets you can use right away. I liked "Circulation" and "Relax". Tried "Smart" but found it too aggressive - feels like you're being tortured thru crushing. There are also "subsets" you may choose with just one click of a button - "Back & Lumbar" is my favorite.I'd also note "Zero-G" mode. It's advertised as a key feature of the product and it's really cool. You may enable this mode for some massage types but not for all. In this mode chiar puts you in kind of horizontal position. It's comfortable and massage feels much better. If you gonna use this mode you must ensure there are at least 23" of free space behind the chair. So, you cannot put it close to a wall.Some cons noticed so far:1. Remote control has very limited sensitivity - you need to target very precisely if you want it working. Btw, remote control is not advertised. It has only basic features like "power", "zero-g" and some strength adjustments.2. Main control board is mounted on a metal stick which is very unstable. It's hard to operate using just one hand and if you're using Zero-G or any other horizontal mode one hand is all you have.3. Assembling manual is a bit outdated. Though, I figured out what to do without any problems.When you request delivery be aware of three things:1. It's really heavy! Total weight is about 200lb. Max weight of the biggest part I'd estimate to ~120-140lb.2. Chair comes in two boxes and one of them has dimensions 50" x 30" x 38". In my house I have doorways of 31" width and due to layout it was impossible to move both boxes to the room so, delivery guys left the biggest one in the garage. I had to move all parts to the target room by my hands and it wasn't fun.3. Even if you don't need to move parts throughout your home you still need assistance of another person to assemble the unit. You can do it yourself but trust me - it doesn't worth it. You buy this chair to *heal* your back, right? :) ### ⭐ Uncomfortable, just a couple adjustments. *by P***R on November 21, 2020* Took hours to assemble. Is very uncomfortable. No ability to adjust, line roll, or kneed. Rollers on foot very limited activity. One mode,,,smart,,, is do bad even on lowest setting, it feels like it will break something. ### ⭐⭐⭐⭐⭐ we like it *by N***E on July 29, 2020* after 3 weeks waiting, finally we got our Asaki 4000 massage chairs. It took us almost 2 hours to move the boxes in house and assemble it. The 2nd box is really heavy (gross weight is over 280lbs). Considering weight is one important criterial for good massage chair, it is ok, and we made it ! :)It is not difficult to assemble it, following the direction, even though it seems a few steps were missed from the guideline... we just used our common sense.The chair is very comfortable and helpful, with speed, strength adjustment, and all pre-set models. I think it is beautiful and stylish as well, matching our furniture and wooden floor color very well. We like it very much! Hope the quality is good and we can enjoy this massage chair a long time! --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/7391616-os-4000](https://www.desertcart.us/products/7391616-os-4000) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-25*