Osaki Trion Flex Duo 4D+3D Massage Chair
-
In Stock: Ready to ship free
Massage Technology
- Duo Mech 4D+3D Mechanism
- SL Flex Track
- Body Scan Technology
- Unique Walking Technology
- 50 Air Cell Full Body Compression
- Armrest Massage Rollers
- Heated Foot Massage Rollers
Programs
- Intelligent Health Detection
- 12 Auto Programs & 6 Massage Styles
- Unique Sora Programs
- Manual Massage Programs
Features
- Space Saving 2 Stage Zero Gravity Recline
- Lumbar & Calves Heat Therapy
- Automatic Extendable Footrest
Controls
- Touchscreen Tablet
- Smart Voice Control
- Armrest Controls
Connectivity
- Bluetooth Speakers
- USB Charging
- Wireless Charging
Free Curbside Delivery – Avg. Shipping Time 7-10 Business 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.
In-Home Delivery – Avg. Shipping Time 7-10 Business Days
In-Home 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.
In-Home Delivery and Assembly – Avg. Shipping Time 10-20 Business 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.
Massage chairs are heavy, so make sure you have some extra help to move the boxes and help in assembly.
Please contact us for a shipping quote if you live in Hawaii, Alaska, or Canada.
Warranty
Osaki Manufacturer's Warranty
- 1 Year In-Home Service
- 2 Years Parts
- 3 Years Structural Framework
Osaki 1 Year Extended Warranty
- 2 Year In-Home Service
- 4 Years Parts
- 3 Years Structural Framework
Osaki 2 Year Extended Warranty
- 3 Year In-Home Service
- 5 Years Parts
- 3 Years Structural Framework

Osaki Trion Flex Duo 4D+3D Massage Chair
If you’ve been searching for a massage chair that combines advanced technology with full-body wellness, the Osaki Trion Flex Duo 4D+3D is designed for you. Unlike standard chairs that only focus on the back, this model uses dual roller systems, intelligent health tracking, and innovative walking technology to deliver a massage that feels customized to your body. Whether you’re looking to recover from long workdays, improve circulation, or simply enjoy spa-level relaxation at home, the Trion Flex Duo gives you a professional massage experience in the comfort of your living room.

Massage Technology
-
Duo Mech 4D + 3D Massage Mechanism
The Osaki Flex Duo combines advanced 4D rollers that move in multiple directions with adjustable intensity to mimic the hands of a professional therapist, while its 3D rollers in the lower section deliver steady, targeted pressure to the glutes and hamstrings, areas most chairs often overlook. To ensure the perfect fit, a body scan automatically maps each massage to your unique shape for maximum effectiveness.
-
SL Flex Track
The SL Flex Track bends and extends as the chair reclines, so the rollers never lose contact with your body. From neck and shoulders down to hips and thighs, the chair stretches and relieves tension across the entire spine.
-
Walking Technology
The Trion Flex Duo features a unique scissor-action walking mechanism that gently stretches the lower back, glutes, hamstrings, and knees, recreating the motion of a natural walk to improve flexibility and relieve tension.
-
Air Compression Massage
With 50 strategically placed air compression cells, the Osaki Trion Flex Duo delivers rhythmic pressure to your arms, shoulders, hips, and calves, helping to boost circulation while gently releasing muscle tension.
-
Triple Arm Rollers
Unlike chairs that rely only on airbags, the Trion Flex Duo has triple arm rollers on each side, providing rolling relief to hands and forearms while increasing blood flow.
-
Heated Reflexology Foot Roller
Three precision foot rollers knead from heel to toe, while soothing heat melts away tension and stimulates key acupressure points. This combination of rolling and warmth not only relieves soreness but also enhances overall circulation for a more restorative massage experience.
Features
-
Space Saving Zero Gravity Recline
Experience a weightless sensation that reduces spinal pressure and enhances relaxation. The Osaki Trion Duo Flex 4D+3D reclines fully, even when placed just 3.5 inches from the wall, making it ideal for smaller spaces.
-
Heat Therapy
Gentle heat in the lumbar, calves, and feet soothes tight muscles, improves circulation, and deepens the benefits of your massage session.
-
Automatic Leg Extension
The footrest extends up to 6 inches automatically, adapting to different body types and ensuring a comfortable fit for users of varying heights.
-
Touchscreen Tablet
A full-color touchscreen puts every setting at your fingertips, making it effortless to browse massage programs, adjust intensity, and tailor your session in just a few taps. The intuitive interface is designed for quick navigation, so you can switch between modes, save your favorite routines, and fine-tune your comfort without breaking your relaxation.
-
Armrest Controls
Built-in side panel buttons let you adjust recline, heat, and volume instantly, so you can fine-tune comfort without interrupting your massage.
-
Voice Commands
Activate key features of the Osaki Trion Duo Flex 4D+3D massage chair hands-free by saying “Hey Alice,” giving you effortless control without lifting a finger.
Massage Programs
-
AI-Powered Health Detection
Before your session, the Trion Flex Duo can measure heart rate, oxygen levels, circulation, and fatigue. It then adapts the massage intensity and style to match what your body needs most.
-
12 Automatic Programs
Choose from recovery, targeted relief, energy boost, or training support. Massage styles include kneading, tapping, shiatsu, vibration, and acupressure — designed for specific goals, not just relaxation.
-
SORA Mode
The Trion Flex Duo’s walking technology can be enabled using the automatic massage programs under SORA Mode.
Connectivity
-
Bluetooth Speakers
Built-in Bluetooth speakers let you connect your smartphone or tablet and stream your favorite playlists, podcasts, or calming soundscapes. By surrounding you with high-quality audio, the chair transforms every session into an immersive spa-like experience.
-
USB + Wireless Charging
Stay connected and fully charged without leaving your chair. The built-in USB port and wireless charging pad make it easy to power up your phone or tablet while you enjoy your massage, ensuring your devices are ready to go
Downloads | MANUAL |
Country of Manufacture | China |
Massage Roller | 4D Dual Style Massage Roller + 3D Quad Style Massage Roller |
Massage Roller Track | SL Flex Track |
Massage Roller Adjustments | Yes |
Glute Massage | Massage Roller and Air Compression |
Removable Back Pad | Yes |
Body Scan Technology | Yes |
Foot Massage | Reflexology Foot Rollers |
Recline | Yes |
Zero Gravity Recline | Yes |
Automatic Programs | 12 Automatic Programs |
Manual Programs | Yes |
Massage Techniques | Kneading, Sync, Vibration, Tapping, Shiatsu, and Acupressure |
Deep Tissue Massage | Yes |
Stretch Program | Yes |
Heat Therapy | Lumbar, Calves, and Feet |
Total Airbags | 50 |
Airbag Intensity Adjustments | Yes |
Calf Massage | Air Compression |
Ottoman Length Adjustment | Automatic |
Bluetooth Speakers | Yes |
Upholstery | Synthetic Leather |
Timer Setting | 10-30 Min |
Device Charging | Wireless Charging Pad and USB |
Air Massage | Shoulders, Arms, Back Hips, Calves, and Feet |
Distance to Wall | 3.9" |
Height Range | 5'0" - 6'1" |
Controller Types | Touchscreen Tablet and Armrest Controls |
Voice Control | Yes |
Dimensions Upright | 71"L x 33"W x 47.5"H |
Dimensions Recline | 79"L x 33"W x 34"H |
Seat Width | 21" |
Shoulder Width | 22" |
Weight | 359.4 lbs |
Recommended Weight | 270 lbs |
Minimum Door Width | 30" Disassembled / 33" Assembled |
Shipping Dimensions | 65"L x 33.5"W x 34.5" - 269 lbs | 49.6"L x 15.4"W x 28"H - 65 lbs | 24.8"L x 23.6"W x 25.2"H - 88.2 lbs |
Shipping Weight | 422.2 lbs |
Warranty | 3 Year Limited Warranty |
Osaki Trion Flex Duo 4D+3D Massage Chair – FAQ
Q: What makes the Trion Flex Duo different from other massage chairs?
A: Unlike most chairs with a single roller system, the Flex Duo combines dual 4D and 3D rollers. This means you get precise, therapist-like back massage while also receiving steady pressure to the glutes and hamstrings—areas many chairs neglect.
Q: How does the SL Flex Track work?
A: The SL Flex Track is designed to follow the natural S-curve of your spine and extend into the seat. As the chair reclines, the flexible track bends with your body, ensuring continuous contact from the neck to the thighs for a more complete massage
Q: Does this chair adjust to different body sizes?
A: Yes. The chair includes an automatic body scan before each session to map your shape, plus an extendable footrest that adjusts up to 6" to fit a wide range of heights.
Q: What is “walking technology” in a massage chair?
A: The Flex Duo’s scissor-action walking mechanism mimics the motion of walking. It gently stretches the lower back, glutes, hamstrings, and knees to improve flexibility and reduce tension—something traditional chairs don’t offer.
Q: How many massage programs does it have?
A: You’ll find 12 automatic programs, including recovery, stretching, targeted relief, and energy-boosting routines. There’s also SORA Mode, which activates the walking technology for a unique full-body stretch.
Q: Can the chair monitor my health?
A: Yes. The built-in intelligent health detection system measures heart rate, blood oxygen, circulation, and fatigue. This data helps the chair adjust your massage for a more personalized experience.
Q: Does it save space when reclining?
A: Absolutely. The chair features a space-saving design, needing only 3.5 inches from the wall to fully recline in a zero-gravity position.
Q: What kind of heat therapy is included?
A: Gentle heat is applied to the lumbar, calves, and feet to ease muscle tension and improve circulation, complementing the rollers and airbags for deeper relief.
Q: How do I control the chair?
A: You can use the touchscreen remote, armrest quick controls, or voice commands (“Hey Alice”) for a completely hands-free experience.
Q: Can I listen to music or charge my phone?
A: Yes. The chair includes Bluetooth speakers, a USB port, and a wireless charging pad, so you can relax with your favorite playlist while keeping your devices powered.
Q: Who is this chair best suited for?
A: The Osaki Trion Flex Duo is ideal for anyone seeking full-body wellness—whether you’re recovering from long workdays, looking to improve flexibility, or simply wanting a spa-level massage at home.