3-Year
Limited Warranty
- Year 1: In-home service, parts, and labor
- Years 2–3: Replacement parts only
Osaki 5D+4D Kairos Duo Massage Chair
Dual-mechanism massage coverage with advanced 5D and 4D comfort
The Osaki Kairos Duo 5D+4D is designed for customers who want a highly advanced massage chair with two synchronized massage systems working together across the upper and lower body.
With 5D + 4D dual mechanism technology, smart pressure sensing, automatic body scan, SL-Track coverage, 56 air-cell full-body compression, calf kneading, foot rollers, heat therapy, voice command, and touchscreen control, the Kairos Duo brings a more complete massage experience into your home.
Best for
Users who want a premium Osaki massage chair with advanced upper-and-lower body coverage, stronger lower-body comfort, smart adjustment, and modern daily-use features.
Massage feel
The Kairos Duo is built for a layered full-body massage feel, using synchronized upper and lower mechanisms to work on multiple body areas during the same session.
Room fit
The 1-inch space-saving recline design helps the chair fit closer to the wall, but you should still measure your room, doorway, hallway, and delivery path before purchase.
Key massage features
These are the main Kairos Duo 5D+4D features most customers should understand before choosing this chair.
5D + 4D Dual Mech Technology
The Kairos Duo uses two synchronized massage mechanisms to provide massage coverage across the upper and lower body at the same time. This helps create a fuller and more continuous massage experience compared with a chair that only uses one main massage system.
- Upper and lower massage systems work together during selected programs.
- Designed to support broader full-body massage coverage.
- Helps create a more layered massage feel from back to lower body.
Smart Pressure Sensor and Automatic Body Scan
The Kairos Duo performs an automatic body scan when the chair powers on, helping detect body shape, shoulder position, and massage path. Smart pressure sensing helps the chair adapt more accurately as the user shifts position during a session.
- Helps customize massage placement based on body contours.
- Supports more accurate contact around key massage areas.
- Useful for users who want a more personalized massage experience.
Ergonomic SL-Track System
The SL-Track system follows the natural curve of the spine while extending massage coverage from the neck and shoulders down toward the glute and upper hamstring area. This gives the Kairos Duo broader coverage than a basic back-only massage chair.
- Designed to follow the shape of the back more naturally.
- Extends massage coverage beyond the upper back.
- Works with the dual mechanism design for more complete body coverage.
56 Air-Cell Full Body Air Massage
The Kairos Duo includes 56 air cells placed throughout the chair to add rhythmic compression around key body areas. This air compression system helps create a more complete massage feel alongside the chair’s 5D + 4D roller mechanisms.
- Air compression supports areas such as shoulders, arms, waist, calves, and feet.
- Adds gentle pressure during selected massage programs.
- Pairs with roller massage for a fuller full-body session.
Calf Kneading and Foot Rollers
The Kairos Duo is designed with calf kneading and specialized foot rollers to help complete the lower-body massage experience. Two rollers per foot work with reflexology-style ridges to massage from the toes toward the heel area.
- Dedicated foot rollers help target tired feet.
- Calf kneading adds focused lower-leg comfort.
- Helpful for users who stand, walk, travel, or work long days.
Zero Gravity Recline and 1-Inch Space Saving Design
The Kairos Duo offers one-stage Zero Gravity reclining with two reclining modes: Leisure and Sleep. Its space-saving design is made to need only about 1 inch from the wall for full recline, helping the chair fit more easily in tight spaces.
- Zero Gravity positioning helps place the body in a more relaxed reclined angle.
- Two reclining modes allow users to choose a more casual or deeper rest position.
- Space-saving design helps reduce rear clearance needs in home settings.
Heat Shawl and Calf Heat
The Kairos Duo includes heating support through a heat shawl and calf heat, adding soothing warmth during selected massage sessions. The listed heating range is approximately 75°F to 83°F.
- Heat shawl can be placed over the body for targeted warmth.
- Calf heat adds comfort to the lower-leg area.
- Designed to support relaxation and comfort during massage, not medical treatment.
Additional comfort and control features
These supporting features help make the Kairos Duo easier to use, more customizable, and more complete for everyday relaxation at home.
20 Auto Massage Modes
Twenty automatic programs provide a wide range of massage options, including quick demo, stretch, pain relief, senior, spine care, office relief, travel recovery, sports recovery, morning, night, vitality, and relax modes.
5 Manual Massage Modes
Manual massage options include knead, knock, tap, knead and tap, and shiatsu for users who want more control over the massage style.
Customizable Massage
Custom massage settings allow users to fine-tune the session based on preferred body area, massage style, and comfort needs.
Customizable Timer
The customizable timer makes it easier to adjust session length depending on your schedule and relaxation routine.
5 Massage Intensity Levels
Five levels of massage intensity allow users to choose a lighter or stronger massage feel.
5 Speed Intensity Levels
Five levels of speed adjustment help control the rhythm and pace of the massage.
5 Pressure Intensity Levels
Five pressure levels help users personalize how firm the massage feels during supported programs.
Intelligent Voice Command
Voice command allows users to control selected chair functions hands-free using preset commands from the product manual.
Touchscreen Controller
The touchscreen controller makes it easier to navigate programs, settings, and adjustments during a massage session.
Bluetooth Speaker
Built-in Bluetooth speakers let users enjoy music, calming audio, podcasts, or guided relaxation while using the chair.
USB and Wireless Charging
A USB Type-A port and wireless charging area help keep compatible devices powered during a massage session.
Removable Headrest
The removable headrest lets users adjust upper-body contact and massage depth depending on their comfort preference.
Negative Ionizer
The built-in negative ionizer adds another comfort-focused feature to the chair’s relaxation environment.
Footrest Extension
The footrest extension helps accommodate different users and supports a better lower-body fit during massage.
Modern Premium Design
The Kairos Duo combines advanced massage technology with a clean, modern exterior designed for premium home interiors.
Before you choose the Kairos Duo 5D+4D
A premium massage chair should fit your body, your room, and your daily routine. Before purchase, confirm the chair dimensions, wall clearance, doorway width, delivery path, warranty coverage, and return details with Tittac.
- Measure the room where the chair will be placed.
- Check doorway, hallway, stair, and delivery access before ordering.
- Confirm wall clearance even though the chair is designed for 1-inch space saving recline.
- Ask about warranty coverage for the specific model.
- Contact Tittac if you want help comparing massage style, chair size, and setup expectations.
Osaki Kairos Duo 5D+4D FAQ
Is the Osaki Kairos Duo 5D+4D a good massage chair for home use?
Yes. The Kairos Duo 5D+4D is a strong fit for customers who want a premium home massage chair with dual massage mechanisms, 5D + 4D technology, automatic body scan, smart pressure sensing, SL-Track coverage, 56 air cells, calf kneading, foot rollers, heat, and modern controls.
What makes the Kairos Duo different from a regular massage chair?
The biggest difference is its dual mechanism design. Instead of relying on one main massage system, the Kairos Duo uses synchronized upper and lower massage mechanisms to support broader full-body coverage during selected programs.
What does 5D + 4D massage mean on the Kairos Duo?
The Kairos Duo combines advanced roller movement with smart pressure sensing and synchronized upper-and-lower body massage coverage. This helps create a more adaptive and personalized massage feel than a basic fixed massage system.
How much wall clearance does the Kairos Duo need?
The product content lists a 1-inch space-saving design for full recline. You should still measure your room, doorway, hallway, and delivery path before ordering to make sure the chair fits properly.
Do heat therapy and the negative ionizer replace medical treatment?
No. Heat therapy and the negative ionizer are comfort-focused features for relaxation. They should not be treated as medical care or a replacement for advice from a healthcare professional.
How can I choose the Kairos Duo if I cannot visit the showroom?
You can still get help before ordering. Tittac can walk you through the Kairos Duo’s massage features, chair size, room fit, delivery expectations, warranty coverage, and return details by phone, text, or chat.
Get help choosing the right massage chair
Whether you visit our showroom or order from out of state, Tittac can help you review chair size, massage style, delivery options, warranty coverage, and return questions before you buy.
- Compare massage style, chair size, and comfort features before ordering.
- Ask about delivery options, setup expectations, warranty coverage, and return details for your location.
- Get help by phone, text, chat, or showroom visit depending on where you live.
Need help before ordering? Talk with Tittac before you choose your massage chair.
Local customers can visit the showroom. Out-of-state customers can still get help by phone, text, or chat before ordering.
Specifications
| Recommended Weight Limit | 280 lbs |
|---|---|
| Recommended User Height | 5'0" - 6'2" |
| Seat Width | 20.5" |
| Shoulder Width | 20" |
| Minimum Doorway Width | 31.5" Disassembled / 33" Assembled |
| Chair Dimensions | |
| Dimensions Upright | 62" L x 33" W x 47.5" H |
| Dimensions Reclined | 70" L x 33" W x 36.5" H |
| Distance from Wall | 1" |
| Chair Weight | 284 lbs |
| Shipping Information | |
| Shipping Weight | 337 lbs |
| Box Size 1 | 31.69" L x 58.46" W x 37.99" H - 298 lbs |
| Box Size 2 | 16.73" L x 39.96" W x 24.41" H - 39 lbs |
| Massage System | |
| Massage Roller | 5D Upper Massage Mechanism and 4D Lower Massage Mechanism |
| Massage Track Type | SL-Track |
| Massage Roller Adjustments | 5 intensity, speed, and depth adjustments |
| Glute Massage | Air compression and massage roller |
| Body Scan Technology | Yes |
| Foot Massage | Reflexology foot massage |
| Air Massage & Comfort | |
| Air Massage Areas | Shoulders, Arms, Waist, Calves, and Feet |
| Total Airbags | 56 |
| Airbag Intensity Adjustments | 5 adjustment settings |
| Calf Massage | Air compression, calf kneading, and massage rollers |
| Ottoman Length Adjustment | Automatic |
| Recline | Powered with Leisure and Sleep settings |
| Zero Gravity Recline | Yes |
| Stretch Program | Yes |
| Deep Tissue Massage | Yes |
| Heat Therapy | Heated shawl, heated upper rollers, and heated calves |
| Programs & Controls | |
| Automatic Programs | 20 automatic programs |
| Manual Programs | Whole, Partial, and Pinpoint |
| Timer Setting | 10 - 20 minutes |
| Massage Techniques | Kneading, Knocking, Tapping, Kneading and Tapping, and Shiatsu |
| Controller Types | Touchscreen tablet, armrest controls, and voice |
| Controller Languages | English, Chinese, and Korean |
| Voice Control | Yes |
| Entertainment & Build | |
| Bluetooth Speakers | Yes |
| Device Charging | Wireless and USB charging |
| Ion Therapy | Yes |
| Removable Back Pad | Yes |
| Upholstery | Synthetic leather |
| Country of Manufacture | China |
Please measure your room, doorway, hallway, stairway, and delivery path before ordering. Large massage chairs may require partial disassembly for delivery through standard household doorways.
Downloads
Download the Osaki Kairos Duo owner manual for setup, operation, safety, maintenance, and chair usage instructions.
Osaki Massage Chair Warranty
Osaki massage chairs are covered against defects in materials and workmanship under normal residential use. Coverage begins on the original purchase date and applies only to the original purchaser.
Warranty Coverage
5-Year
Limited Warranty
- Years 1–3: In-home service, parts, and labor
- Years 4–5: Replacement parts only
Warranty coverage varies by model. Please refer to the product specifications to confirm whether the chair includes the 3-year or 5-year limited warranty.
What Is Not Covered
- Physical, accidental, or cosmetic damage
- Commercial, corporate, rental, or institutional use
- Misuse, neglect, improper maintenance, or failure to follow instructions
- Unauthorized repairs, alterations, or modifications
- Electrical disturbances, power surges, or loss of power
- Environmental damage, including rust, corrosion, fire, flood, wind, hail, earthquake, or tornado
- Shipping or handling damage
- Normal wear, including fading, fabric pilling, stitching, Velcro, and zippers
- Products purchased from unauthorized resellers
Osaki warranties are non-transferable and apply only to the original purchaser. Loss of use while the product is being inspected or repaired is not covered.
Need Warranty Service?
Contact TITTAC Customer Support with your order number and a description of the issue. Photos or videos may be requested to assist with diagnosis. Our team will help coordinate the appropriate warranty service with Osaki.
Shipping, Exchanges & Returns
Review the delivery options, inspection requirements, and 30-day exchange and return terms for TITTAC massage chairs.
Free Curbside Freight Delivery
Massage chairs include free curbside freight delivery to the 48 contiguous United States. Delivery is generally estimated at 7 to 10 days, but timing may vary by product availability, destination, and freight carrier schedule.
Curbside delivery is made to the curb, driveway, or nearest safe exterior location accessible by the freight truck.
Curbside delivery does not include:
- Moving the chair inside the home
- Stairs, upper floors, or room placement
- Unpacking or assembly
- Removal of boxes and packaging materials
The customer is responsible for arranging sufficient help and equipment to move the chair from the delivery location into the home.
White Glove Delivery
White Glove Delivery is available for an additional charge. Pricing and included services vary by chair model, delivery address, and local service provider.
- The chair is delivered through a local delivery and assembly provider
- The provider contacts the customer to arrange an appointment
- In-home delivery and assembly are provided according to the confirmed service level
- Stairs, room placement, unpacking, and packaging removal must be confirmed in advance
White Glove Delivery generally adds 7 to 10 days to the regular delivery estimate. All White Glove charges are non-refundable once the service has been arranged.
Alaska & Hawaii
Free shipping does not apply to Alaska or Hawaii. Please contact TITTAC before ordering to confirm available delivery options and receive a freight quote.
Inspect Your Delivery
Inspect the packaging and visible condition of the chair before signing the delivery receipt.
- Note all visible damage clearly on the delivery receipt
- Take photos of the packaging, shipping labels, damage, and receipt
- Contact TITTAC as soon as possible
- For severe damage, contact TITTAC before refusing delivery whenever possible
Signing without a damage notation may limit the ability to file a successful freight claim. Concealed damage or functional issues discovered after unpacking should be reported promptly.
30-Day Exchanges & Returns
A massage chair may be requested for exchange or return within 30 days from the purchase date. TITTAC approval and return instructions are required before the chair is shipped back.
Return for a Refund
- The customer is responsible for the original outbound freight cost
- The customer is responsible for return freight
- Applicable freight charges will be deducted from the refund
- White Glove Delivery charges are non-refundable
Exchange for Another Chair
- Price differences are adjusted according to the replacement chair
- Applicable freight charges are the customer's responsibility
- Higher- and lower-priced exchanges may have different freight treatment
- White Glove service for a replacement chair is charged separately
Returned chairs must be securely packaged for freight transport. The customer is responsible for damage caused by improper return packaging.
Refused or Undeliverable Shipments
Customers may be responsible for outbound freight, return freight, redelivery, storage, and any White Glove charges already incurred when delivery is refused without approval, an appointment is missed, or an incorrect or incomplete address is provided.
Questions About Delivery or Returns?
Contact TITTAC for White Glove pricing, Alaska or Hawaii freight quotes, delivery damage assistance, and exchange or return authorization.
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