3-Year
Limited Warranty
- Year 1: In-home service, parts, and labor
- Years 2–3: Replacement parts only
Osaki Yoga Flex 4D Massage Chair
Stretch-focused 4D massage with walking technology, health detection, and full-body comfort
The Osaki Yoga Flex 4D is designed for customers who want a massage chair that goes beyond standard back massage. With walking technology, an independent leg massager, 4D massage rollers, SL-Track coverage, intelligent health detection, air compression, lumbar and calf heat, specialized foot rollers, and automatic foot extension, it focuses on deeper stretch therapy and full-body relaxation.
Its unique lower-body movement helps gently pull, extend, and mobilize the legs while supporting the lower back, glutes, hamstrings, knees, calves, and feet. Combined with body scanning, 3-stage Zero Gravity, seat vibration, touchscreen control, Bluetooth speakers, LED ambience, and USB charging, the Yoga Flex 4D creates a premium recovery-style massage experience for modern home wellness.
Best for
Users who want a premium 4D massage chair with stretch therapy, walking-style lower-body motion, leg extension, body scanning, health detection, Zero Gravity, foot rollers, heat, and smart comfort features.
Massage feel
The Yoga Flex 4D is built for a balanced massage feel that combines 4D back massage, SL-Track coverage, lower-body stretching, air compression, foot rollers, heat therapy, and seat vibration.
Room fit
The space-saving design helps the chair recline while sitting closer to the wall. Always measure your room, doorway, hallway, stairway, and delivery path before ordering.
Stretch therapy and full-body massage features
The Yoga Flex 4D is ideal for customers who want stronger lower-body attention, a deeper stretching feel, and a smart massage experience that adapts to the body.
Intelligent Health Detection
The Osaki Yoga Flex 4D includes an intelligent health detection system designed to support a more personalized massage experience. The chair uses wellness-related feedback to help adjust the massage session to the user’s body condition and comfort needs.
- Helps personalize the massage experience.
- Works together with body scanning and automatic programs.
- Designed as a comfort and wellness feature, not as a medical diagnostic tool.
Walking Technology for Lower-Body Stretch
Unlike traditional massage chairs that focus mainly on the back, the Yoga Flex 4D gives more attention to the lower body. Its walking technology uses a scissor-action movement to simulate a natural walking motion, helping gently stretch the lower back, glutes, hamstrings, knees, and legs.
- Designed for lower-body movement and stretch therapy.
- Supports the lower back, glutes, hamstrings, knees, and legs.
- Helpful for users who want a more active recovery-style massage.
Extended SL-Track System
The SL-Track system helps the massage rollers follow the natural curve of the spine and extend massage coverage from the neck and shoulders down toward the hamstrings. This gives the Yoga Flex 4D a more complete massage path than a basic back-only chair.
- Follows the natural S-curve of the spine.
- Extends massage coverage toward the lower body.
- Reinforced with durable laser-crafted steel for smooth roller movement.
4D Massage Mechanism with Body Scan
The 4D massage mechanism is designed to mimic the feel of a professional massage by moving vertically, horizontally, and inward for depth, while also varying speed and rhythm. Each session begins with a body scan so the rollers can better match the user’s shape and size.
- 4D rollers support depth, rhythm, and speed variation.
- Body scan technology helps align the massage to the user.
- Creates a more customized back massage experience.
3-Stage Zero Gravity and Space-Saving Recline
The Yoga Flex 4D includes 3-stage Zero Gravity reclining to help place the body in a more relaxed massage posture. Its space-saving design slides the chair forward as it reclines, helping it fit more easily in home relaxation spaces.
- 3-stage Zero Gravity reclining position.
- Helps distribute body weight more evenly during massage.
- Space-saving design supports easier room placement.
34-Cell Air Compression with Lumbar and Calf Heat
With 34 air cells placed throughout the chair, the Yoga Flex 4D adds gentle compression to support a fuller massage feel. Lumbar and calf heating add soothing warmth during selected sessions, helping the body relax into the massage.
- 34-cell air compression system.
- Air massage supports multiple areas of the body.
- Lumbar and calf heat add gentle warmth during massage.
Specialized Foot Rollers and Automatic Foot Extension
The Yoga Flex 4D features specialized foot rollers with reflexology-style ridges to massage from toes to heels. The automatic foot extension adjusts up to 6.5 inches, helping the chair better accommodate different heights and body types.
- Specialized foot rollers target the full foot area.
- Automatic foot extension adjusts up to 6.5 inches.
- Helps improve comfort for users with different leg lengths.
Programs, controls, and everyday comfort
Beyond its stretch-focused massage design, the Yoga Flex 4D includes helpful comfort features for daily relaxation at home.
Revolution Lower-Body Modes
The lower-body massage system includes Walk, Wave, and Stretch modes to support different calf and leg massage experiences.
Vibrating Seat Massage
Seat vibration adds another layer of comfort for the hips and thighs, helping create a more complete full-body relaxation session.
16 Auto Massage Modes
Automatic programs include stretch, recovery, body-area focused, and wellness-inspired massage modes. Program names may vary by manufacturer settings.
7 Manual Massage Modes
Manual massage options include Kneading, Tapping, Clapping, Shiatsu, Thumping, Rolling, and Scrapping for users who want more control.
Touchscreen Remote
The touchscreen remote gives quick access to massage programs, chair position, intensity options, and other daily settings.
Bluetooth Speakers
Built-in Bluetooth speakers let users enjoy music, calming audio, podcasts, or guided relaxation during massage sessions.
LED Lighting Ambience
Ambient LED lighting enhances the modern design of the chair and helps create a calming relaxation environment.
USB Charging Port
The built-in USB charging port lets users keep their phone or device powered while they relax in the chair.
Before you choose the Osaki Yoga Flex 4D
The Yoga Flex 4D is a premium stretch-focused massage chair with advanced lower-body movement, 4D massage, body scanning, health detection, heat, air compression, and foot massage. Before ordering, confirm chair dimensions, doorway clearance, room placement, delivery path, warranty coverage, and return details with Tittac.
- Measure your room, doorway, hallway, stairway, and delivery path.
- Confirm the reclined chair size and wall clearance requirement.
- Review delivery and setup expectations for your location.
- Ask Tittac to help compare Yoga Flex 4D with other premium massage chairs.
- Confirm warranty coverage and return details before purchase.
Osaki Yoga Flex 4D FAQ
Who is the Osaki Yoga Flex 4D best for?
The Yoga Flex 4D is best for customers who want a premium massage chair focused on stretch therapy, walking technology, lower-body comfort, 4D massage, SL-Track coverage, health detection, Zero Gravity, foot rollers, heat, and smart controls.
What makes the Yoga Flex 4D different from a regular massage chair?
The biggest difference is its stretch-focused lower-body design. The independent leg massager and walking technology help create a more active stretch experience for the lower back, glutes, hamstrings, knees, calves, and feet.
Does the health detection system diagnose medical conditions?
No. The health detection system is intended to support a more personalized comfort experience. It is not a medical device and should not replace advice from a healthcare professional.
What does the automatic foot extension do?
The automatic foot extension helps the leg and foot section adjust to different users. It can extend up to 6.5 inches for better lower-body comfort.
Does the Yoga Flex 4D include heat?
Yes. The product content lists heating therapy in the lumbar and calf areas. Heat is designed to add soothing warmth during selected massage sessions.
Can Tittac help compare this model with other chairs?
Yes. Tittac can help you compare massage style, stretch features, lower-body support, chair size, delivery options, warranty coverage, and overall value before you choose.
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 the Osaki Yoga Flex 4D with other premium massage chairs.
- Ask about stretch therapy, walking technology, lower-body comfort, room fit, delivery, setup, warranty, and return details.
- 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 | 250 lbs |
|---|---|
| Seat Width | 19.5" |
| Shoulder Width | 21" |
| Minimum Doorway Size | 30.5" |
| Will Fit Through Standard Household Doorways? | Yes, if doorway clearance is at least 30.5" |
| Chair Dimensions | |
| Chair Dimensions - Upright | 30.5" W x 60" L x 47" H |
| Chair Dimensions - Reclined | 30.5" W x 65.5" L x 42" H |
| Chair Weight | 233 lbs |
| Package Information | |
| Package Dimensions - Box 1 | 56.7" L x 32.1" W x 38.6" H |
| Package Dimensions - Box 2 | 22.47" L x 20.5" W x 23.4" H |
| Package Weight - Box 1 | 209.4 lbs |
| Package Weight - Box 2 | 61.7 lbs |
| Massage System | |
| Massage Track Type | SL-Track |
| Roller Type | 4D |
| Roller Glute Massage | Yes |
| Roller Strength Adjustments | Yes |
| Roller Speed Adjustments | Yes |
| Roller Width Adjustment | Yes |
| Body Scan / AI Health Detection | Yes |
| Adjustable Shoulder | Yes |
| Spot / Partial Massage | Yes |
| Programs & Comfort | |
| Vibrating Seat Massage | Yes |
| Space Saving Technology | Yes |
| Recline | Yes |
| Zero Gravity | Yes |
| Automatic Programs | 16 |
| Manual Programs | 7 |
| Deep Tissue Massage | Yes |
| Heat | Yes |
| Airbags | 34 |
| Automatic Extendable Footrest | Yes |
| Extendable Footrest | Yes |
| Auto Timer | 20 minutes |
| Controls & Build | |
| Bluetooth Speakers | Yes |
| LED Lighting | Yes |
| Power Supply | 110 - 120V~ |
| Rated Frequency | 50 / 60 Hz |
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.
Owner’s Manual
Download the Osaki Yoga Flex 4D owner’s manual for setup, operation, safety, maintenance, and chair functions.
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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glad i bought it
My husband have been having back pain for years and his neck gets stiff often and massage is the only thing that works. The zero gravity position helps his lower back, the heat therapy feels great on my back and shoulders too. Some days he just sits in the chair, just for the amazing foot rollers. he love this chair and highly recommend this chair to anyone looking for a back pain relief
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can't beat the price
While the owner's manual is a bit difficult, it becomes clear with practice. All the new features are remarkable considering the price. The stretch feature was new to me and I just love it. I use it at least 30 minutes a day, and the money is so worth it. I'm glad I bought it
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