Osaki Grand Duo 4D+4D Massage Chair

Name: Osaki Grand Duo 4D+4D Massage Chair
Brand: Osaki
SKU: OSAKI-GRANDDUO-1
Price: 11999.0 USD
Availability: InStock

by Osaki

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$14,999.00

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Osaki | Grand Duo 4D+4D

Osaki Grand Duo 4D+4D Massage Chair

The Osaki Grand Duo 4D+4D Massage Chair carries two roller units on one track, one working your back and neck and the other your glutes and hamstrings. Both units are 4D, meaning the rollers change speed and rhythm as they press, and no other chair in the Osaki line runs 4D at both ends. Elsewhere the lower unit is usually 3D, which gives depth without the change of speed. The two units here run at the same time, each on its own half of the track, so the rhythm carries all the way down to your hamstrings.

Other Osaki dual-mechanism chairs run 4D with 2D or 3D, and the Ai Apex Duo runs 5D with 4D. A 2D roller moves up, down and across, always the same distance from your back. 5D is Osaki's name for a 4D unit with a further movement pattern layered on. Around the dual 4D mechanism sits the largest auto-program library short of the Apex Duo: 41 auto and 5 manual. A finger sensor at the front of the armrest reads you and picks from all 41. Scrolling 41 titles by hand would take longer than the massage. Sixty-two air cells cover the chair for a full body air massage, with the arm and palm bags split into three segments that knead and press in a wave. The SL-track measures 53 in. from your neck through your glutes to the top of your hamstrings, an unbroken path that an S-track chair cannot follow because it finishes at the lower back. Zero gravity holds three stages, which means your knees finish above your heart and your weight comes off your spine. The chair reclines fully 1 in. from a wall, and the side panels slide open at a button so you step in at seat height. It fits users up to 6 ft 3 in. and 280 lb, and comes in Brown, Beige and Black.

Two full 4D mechanisms 41 auto programs 62 air cells Sliding side panels

Osaki Grand Duo 4D+4D dual mechanism massage chair

Inside the chair

How it works

The Grand Duo runs 4D at both ends of the track, a pairing unique in the Osaki line, and a 53 in. track, 41 auto programs and 62 air cells put it near the top of the range too.

4D at Both Ends of the Track

Osaki define the fourth dimension as speed and rhythm variation, layered on top of the vertical, horizontal and in-depth movement a 3D roller already has. On a 4D + 3D chair only the upper mechanism has it. The Grand Duo puts a 4D unit in both positions, so that variation runs the full length of the track. Both work at once, upper on your back and neck, lower on your glutes and hamstrings.

4D upper, 4D lower

A Finger on the Armrest Picks From 41

Forty-one is a large library, and a library that size earns its keep only if something narrows it down for you. The A.I. health sensor sits at the front of the armrest. Rest a finger on it and the chair reads heart rate, blood oxygen, microcirculation and fatigue, then picks from all 41 programs and aims at the areas the reading points to. Five manual programs sit underneath for the nights you already know what you want.

41 auto, 5 manual

Three-Stage Zero Gravity

Zero gravity raises your knees above your heart so your weight spreads across the frame. Most chairs store one position, some store two. The Grand Duo holds three stages, so the shallow recline for a shoulder program and the deep one for a full-body session are separate presets you press once for. It reaches a complete recline with 1 in. behind it, which is as close to a wall as any space saving massage chair in the Osaki range will sit.

3 stages

Arm and Palm Airbags in Three Segments

Sixty-two air cells cover the chair in layers, so the compression builds across a zone. The arms are the part Osaki reworked. The arm and palm bags split into three segments and inflate in a wave-like kneading and pressing motion down the length of your arm. Forearm, wrist and palm get worked in sequence.

62 cells

The build

Specifications

The Grand Duo pairs a 53 in. SL-track with two 4D mechanisms, 41 auto programs and 62 air cells, on a frame that reclines fully 1 in. from a wall.

Two 4D mechanisms

Upper and lower body

41 auto programs

Plus 5 manual programs

62 air cells

Three-segment arm and palm bags

Three-stage zero gravity

1 in. wall clearance

53 in. SL-track

Neck to the top of the hamstrings

Sliding side panels

Open at a button

4 foot rollers, 16 airbags

Achilles tendon included

8 in. wireless touchscreen

Plus quick side control panels

Closer look

How to use it

Osaki Grand Duo 4D+4D massage chair legrest and footrest, detail view

Legs and feet

Twenty-Four Airbags and Six Rollers Below the Knee

The calf rest runs outer calf rotation kneading with 8 airbags and 2 rollers, turning against the outside of each calf while the bags squeeze from either side. The footrest holds 4 rollers and 16 airbags and works the sides, the undersides and the backs of your feet along with the Achilles tendon. The whole assembly extends up to 7 in. from the remote, which takes the chair to a 6 ft 3 in. user, and it travels while you are already sitting in the seat.

Outer calf rotation kneading in the calf rest
8 airbags and 2 rollers below the knee
4 foot rollers and 16 airbags in the footrest
Sides, undersides, backs of the feet and the Achilles tendon
Auto extension footrest up to 7 in., fits users to 6 ft 3 in.

7 in. extension 4 foot rollers Up to 6 ft 3 in.

Getting in

Side Panels That Slide Out of the Way

Getting into a massage chair usually means stepping over a fixed armrest and lowering yourself past it. The Grand Duo takes that step out of the way with a powered side panel. Press the button and the panel slides back on its rail, opening the side of the seat so you walk in and sit down at normal chair height. Press it again and the panel closes around you. At 24.5 in. of shoulder width and 21 in. of seat width this is a wide chair to climb into, which is exactly why the panel is there.

Sliding side panel on each side, driven by a button
Opens the side of the seat for level entry
Shoulder width 24.5 in., seat width 21 in.
Upright: 33.5 in. wide by 65.7 in. long by 48.5 in. high
Reclined: 33.5 in. wide by 70.9 in. long by 34.6 in. high

Button operated 24.5 in. shoulders 1 in. from the wall

Cabin

What the Grand Duo Adds Beyond the Massage

The cabin list on the Grand Duo runs long. Aromatherapy releases a fragrance you choose into the air around the chair. A negative ionizer is a small air-treatment unit built into the chair, and it runs whenever the chair is on. Chromotherapy LED lighting is the colored light that cycles through a range of tones, a mood feature and no more than that. Sound comes from Bluetooth speakers built into the chair, which pair to your phone so the audio is your own. You steer all of it from an 8 in. wireless touchscreen, the quick side control panels on the armrests, or your voice, with the command list in the remote menu.

Aromatherapy fragrance system
Negative ionizer, a small air-treatment unit
Chromotherapy LED lighting
Built-in Bluetooth speakers
8 in. wireless touchscreen controller
Quick side control panels, voice control, wireless charger and USB port

Aromatherapy Negative ionizer 8 in. touchscreen

Compare

How it compares

Most chairs in this group pair a 4D mechanism with a 3D one, and the Ai Apex Duo pairs 5D with 4D. The Grand Duo is the only one running 4D in both positions, and the 41 auto programs and 62 air cells are wrapped around that.

Osaki Manhattan Duo Mech 4D

The entry point to the flagship dual-mech group, running 4D plus 3D with an AI health monitor and quiet-running mechanism.

4D + 3D dual mech 16 auto programs AI health monitor Quiet technology

Shop the Osaki Manhattan Duo Mech 4D

Osaki 4D Orion Duo Mech

Puts the dual mechanism on an SL-Flex track with fifty-eight air cells and micro space-saving, so it sits close to the wall.

4D + 3D dual mech 58 air cells SL-Flex track 280 lb capacity

Shop the Osaki 4D Orion Duo Mech

Osaki Trion Flex Duo 4D+3D

Adds three arm rollers and heated foot rollers to the dual mechanism, with a walking motion through the lower body.

4D + 3D dual mech 3 arm rollers 50 air cells Heated foot rollers

Shop the Osaki Trion Flex Duo 4D+3D

You're Here

Osaki Grand Duo 4D+4D

The only chair running two full 4D mechanisms at once, with sixty-two air cells and a three-stage zero gravity recline.

Dual 4D mech 62 air cells 41 auto programs 3-stage zero gravity

Currently viewing

Osaki Ai Apex Duo 5D+4D

The top of the Osaki line, with a 5D upper mechanism and the largest auto-program library of any chair here.

5D + 4D dual mech 62 air cells 46 auto programs 1 in. wall clearance

Shop the Osaki Ai Apex Duo 5D+4D

Questions

Frequently asked questions

Yes, and the second 4D unit is what the whole chair is built around. Osaki define the fourth dimension as speed and rhythm variation, added on top of the vertical, horizontal and in-depth movement a 3D roller already has. On a 4D + 3D chair only the upper mechanism carries it, so the rhythm goes flat once the stroke passes your waist. The Grand Duo runs a 4D unit in both positions, upper on your back and neck, lower on your glutes and hamstrings, both at the same time. In this group of five it is the only chair that does, because three of the others run 4D with 3D and the Ai Apex Duo runs 5D with 4D.

An A.I. health sensor at the front of the armrest does it. Rest a finger on the sensor and the chair reads heart rate, blood oxygen, microcirculation and fatigue, then picks from all 41 auto programs and concentrates on the areas the reading points to. The full list stays on the 8 in. touchscreen if you would rather work through it yourself. The Grand Duo is not a medical device and nothing it reads is a diagnosis.

Yes. 5 manual programs sit underneath the 41 auto ones, and the body scan still runs first, so the rollers meet your own shoulder and lumbar positions before the first stroke. A manual program hands you the technique and the placement, for the night when one shoulder is the reason you sat down.

53 in. The SL-track runs from your neck, through your glutes, to the top of your hamstrings in one continuous path, with no break where the spine meets the seat. An S-track massage chair ends at the lower back, so the glutes and hamstrings are left to the airbags on those chairs.

Three separate stored recline positions on one chair. Each one raises your knees relative to your torso so your weight spreads across the frame and off your spine, and the third is the deepest angle the backrest holds. Because all three are stored, moving between them is a button press and not a hunt for the angle you had last time. The chair reaches a full recline with 1 in. of clearance behind it.

Getting in. Press the button and the side panel slides back on its rail. The side of the seat opens, so you step in and sit at normal chair height with no fixed armrest to climb over. Press again and it closes. On a chair with 24.5 in. of shoulder width, that changes how easy it is to get in and out every single time.

62 air cells through the chair, in layers, so the compression builds. The arm and palm airbags split into three segments and inflate in a wave-like kneading and pressing motion down your arm, so your forearm, wrist and palm get worked in sequence.

The calf rest runs outer calf rotation kneading with 8 airbags and 2 rollers. The footrest holds 4 foot rollers and 16 airbags and covers the sides, undersides and backs of your feet plus the Achilles tendon.

Up to 6 ft 3 in. The footrest travels up to 7 in. on its own, driven from the remote. The point of that travel is placement. Your calves have to sit inside the calf rest and your soles on the four foot rollers for either of them to reach you. Run the footrest out while you are sitting and stop it where your heels rest flat on the rollers.

280 lb. The chair itself weighs 323 lb, which is the number your delivery route has to handle. Inside, you get 24.5 in. across the shoulders and 21 in. of seat.

Two figures to work with: 33.5 in. assembled and 29 in. disassembled. If your narrowest doorway is under 33.5 in., the chair comes apart to get through it. At 65.7 in. long upright, a stair landing or a hallway corner is as likely to stop it as the frame.

Aromatherapy, a negative ionizer, which is the small air-treatment unit inside the chair, and chromotherapy LED lighting. Then Bluetooth speakers, an 8 in. wireless touchscreen controller, quick side control panels and intelligent voice control. Heating therapy runs alongside the massage. A removable pillow comes out when you want the rollers deeper into your back, and your phone charges on the wireless pad or the USB port. The chair comes in Brown, Beige and Black, and the specification is identical under all three covers.

Mechanism: 4D + 4D dual
Track type: SL-track, 53 in.
Air cells: 62
Auto programs: 41
Manual modes: 5
Zero gravity: 3 stages
Footrest extension: Up to 7 in.
User height: Up to 6 ft 3 in.
User capacity: 280 lb
Chair weight: 323 lb
Shoulder width: 24.5 in.
Seat width: 21 in.
Upright dimensions: 33.5 in. W x 65.7 in. L x 48.5 in. H
Reclined dimensions: 33.5 in. W x 70.9 in. L x 34.6 in. H
Door clearance: 33.5 in. assembled, 29 in. disassembled
Wall clearance: 1 in.

Mechanism: Two 4D units, upper on the back and neck, lower on the glutes and hamstrings
Auto programs: 41 auto programs with 5 manual programs underneath
Air massage: 62 cells in multiple layers, compression building progressively across a zone
Arm and palm airbags: Three segments kneading and pressing in a wave down the arm
Zero gravity: Three stored stages, full recline 1 in. from the wall
Track: 53 in. SL-track from the neck through the glutes to the top of the hamstrings
Sliding side panels: Slide back on a rail at a button so entry is at seat height
Foot rollers: 4 rollers and 16 airbags at the sides, undersides, backs of the feet and Achilles tendon
Calf rest: Outer calf rotation kneading with 8 airbags and 2 rollers
AI health sensor: Armrest sensor reads heart rate, blood oxygen, microcirculation and fatigue, then selects from the 41 programs
Controls: 8 in. wireless touchscreen, quick side control panels, intelligent voice control
Cabin: Aromatherapy, negative ionizer, chromotherapy LED lighting, Bluetooth speakers, wireless charger and USB port

3 Year Standard Manufacturer's / Parts & Labor Warranty

This NON-TRANSFERRABLE Warranty is provided by Titan Chair LLC.

We guarantees that your qualified product will be replaced or repaired at our option, without cost to you, should it be deemed defective because of faulty parts, workmanship or structural defects during the first THREE (3) years of ownership, excluding specific limitations contained herein.

What Is Covered*:

This warranty explicitly covers all parts, labor and framework of the chair.
This warranty includes parts costs and labor for the first year at no cost to the customer.
This warranty includes parts costs covered for the second year at no cost to the customer.
Structural Framework on selected products carries for three (3) years.
The additional extended warranties includes parts and labor costs covered at no cost to the customer.

What Is NOT Covered*:

Any shipping expenses incurred. Transportation damage; theft; abuse; neglect; vandalism.
Damages incurred due to shipping and handling, dropped products, improper installation, and/or unauthorized repairs do not constitute a defect under this warranty.
Modifications or altered conditions of the original product, improper use of electrical/power supplies, electrical disturbances and power surges.
Malfunctions due to improper use as well as unreasonable use or maintenance including failure to follow operating instructions.
Any environmental conditions (examples: fire, floods, rust, corrosion, sand, dirt, windstorms, hail, earthquakes, and/or tornados) or any other exposure to weather conditions.
This warranty does not include normal wear and tear including velcro or zipper malfunction, or tears in any fabric covering by abuse. Failures or attached points in stitching, Velcro, and zippers do not constitute as a defect for warranty.
Softening/ hardening of foams and filling composites in pillows and pads; Fading, wear, and pilling of fabrics does not constitute a defect under this warranty as those items naturally change with use.
Natural patterns and grains and variations in leather will not constitute as a defect under this warranty, as no two pieces of fabric are identical.
The warranty shall not apply if the product has been damaged physically, whether intentionally or due accident or neglect: including stains, fluids, mold, water damage, animal damage, cuts, burns or is otherwise unsanitary, damaged or soiled.
Products used in commercial or corporate settings.
Products purchased from unauthorized dealers.
Under this warranty, if a product is determined to be unfixable and requires replacement, the customer is responsible for placing the chair in the garage or another accessible location for the driver to pick up. The returned item must be properly packaged; otherwise, the agent will not be able to pick it up. Upon delivery, the delivery agent will place the chair in the driveway or the nearest accessible area, such as the garage.

Implied Warranty & Other Damages:

Any implied warranties shall be limited to the duration of the 1 year portion of this limited warranty, and with regard to structural framework, limited to the duration of the 3 year portion of this limited warranty.
By making a purchase, you agree that Titan Chair LLC. will not be liable for any items damaged and/or lost while en route to the specified address. Any claims for such loss or damage must be addressed and resolved with the designated carrier.
In no case will Titan Chair LLC. be liable for incidental or consequential damages, whether such damages are claimed on account of breach of warranty, breach of contract, negligence or strict/product liability, including without limitation, damage to property (other than the product) or other economic losses.

How to obtain warranty service:

You must provide proof of purchase for any warranty claim.
You must obtain a return authorization number in order to ship products to a service center.
You may obtain service advice, or an RMA number by contacting the Titan Chair LLC Customer Service department toll-free at 1-888-848-2630 ext.3.
This warranty gives you specific legal rights. You may also have other rights that vary from state to state.

Titan Chair, LLC Warranty Limitations and Exclusions

Warranties are non-transferable, and do not cover any damage or loss caused by: use in a commercial or corporate setting; failure to follow operating instructions; Electrical disturbances and power surges; dropped product; including but not limited to remote controls; Damage resulting from improper use or maintenance; vandalism; environmental conditions; exposure to environmental conditions (rust, corrosion, sand, dirt, wind, hail, earthquake, tornado, fire, flood); loss of use during the period that the product is being repaired; products purchased from unauthorized resellers; alterations or modifications of original condition; theft; neglect; unauthorized repairs; loss of power.
Damage that occurred due to shipping and handling does not constitute a defect under this warranty. Fading, wearing, and the pilling of fabrics does not constitute a defect under the warranty. Failures of attach points such as stitching, Velcro, and zippers do not constitute a defect under this warranty. Under no circumstance shall Titan Chair, LLC or its representatives be liable for indirect, consequential, or incidental damages (including damages for lost profits, business interruption, bodily injury, medical, etc.), even if any party has been advised of the possibility of such damages.
Warranties are only valid within the 48 contiguous United States and Canada, provided the equipment has been operated according to the instructions accompanying it. All warranties begin on the DATE OF PURCHASE. Titan Chair, LLC, at its sole discretion, will repair or replace any defective part within a reasonable time frame.

Free Curbside Delivery – Average Shipping Time 7-10 Days

Curbside Delivery ships via Freight to the 48 contiguous states. The freight company will deliver your massage chair to a carport or first-floor entryway. Please check the box dimensions and ensure it will fit through your doorway. Assembly is required and can take 30-90 minutes, depending on the chair.

Threshold Delivery – Average Shipping Time 7-10 Days

Threshold Delivery ships via Freight to the 48 contiguous states. The freight company will deliver your massage chair inside your home (no stairs) just inside the doorway. Please check the box dimensions and ensure it will fit through your doorway. Assembly is required and can take 30-90 minutes, depending on the chair.

White Glove Delivery – Average shipping time 10-16 Days

In-Home Delivery and Assembly is the same as White Glove Delivery. Your massage chair will be shipped via Freight to the White Glove Delivery warehouse. They will contact you to schedule a delivery time and date when they receive your order.

The White Glove Delivery team consists of a two person installation team that will deliver (up to 2 flights of stairs), unpack, and install your massage chair in your room of choice. These are not professional massage chair installation experts but a furniture installation team. They may or may not have installed your massage chair model before.two-person