Manufacturer Warranty
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Up to 18 months 0% APR available through promotional financing at checkout.
Dedicated Support Team
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Walking Technology, Independent Leg Rests and 50 Air Cells
The Osaki Trion Flex Duo pairs a 4D+3D dual mechanism on a flexible SL-track with independently adjustable leg rests and a scissor-action walking mechanism that stretches from the lower back to the knees. Health detection, 50 air cells, heated foot rollers and "Hey Alice" voice control are all built in.
Free shipping — ships free curbside anywhere in the contiguous US. Choose White Glove (+$275) at checkout to have the chair brought inside, set up in your room of choice and the packaging removed.
Idaho Falls area: free delivery and in-home setup by our own crew within 60 miles of the store. Pick Local Delivery at checkout and we will call to schedule.
Minimum doorway width: 30". Measure the narrowest inside width of the door frame and subtract about 2" for clearance.
Warranty: Includes a free 2-year extended warranty.
Key Features
A scissor-action leg mechanism mimics walking to stretch the lower back, glutes, hamstrings and knees.
Each leg rest adapts to its own position and movement.
4D unit for the back with adjustable intensity; 3D lower section for deep glute and upper-hamstring work.
Extends as the chair reclines to stretch the back from neck to thighs.
Reads heart rate, blood oxygen, microcirculation, HRV and fatigue, then personalizes the massage.
Built-in voice control with preset commands.
Work alongside air compression to relieve tension and boost circulation.
Compression therapy throughout the chair.
Three-roller system from heel to ball of foot, with three heat levels.
Roughly 75–83°F.
Even weight distribution to reduce pressure points.
Fully reclines about 2" from the wall.
Extends up to 6".
Quick access to programs, heat, volume, zero gravity and recline.
Charge devices and play audio during a session.
Description
The Trion Flex Duo is Osaki's flagship stretch chair: eight SORA-mode walking programs plus a full library of auto massage modes and body-part manual modes. Arrives in three boxes; fits a 30" doorway.
Programs
8 SORA walking programs: Core Comfort, Hamstring Harmony, Hip Sculptor, Cyclist's Bliss, Twist & Thrive, Dynamic Flex, Vitality Surge, Thigh Revival. Auto massage modes include Deep Tissue, Yoga Warrior, Neck & Shoulder, Thai Massage, Sports Refresh, Gentle Massage, Back & Spine, Ancient Massage, Relax & Sleep, Body Care, Waist & Hips, Thai Stretch, Gentle Press Massage, Sports Recovery, Lower Body Relief and Acupressure Balance. Manual modes include Kneading, Sync, Vibration, Tapping, Shiatsu and Acupressure, with head, neck, shoulder, back, waist and hip targeting.
Technical Specifications
| Specification | Detail |
|---|---|
| Massage Mechanism | Dual 4D (back) + 3D (glutes/hamstrings) |
| Track | Self-adaptive flexible SL-track |
| Walking Technology | Yes — scissor-action leg mechanism, 8 SORA programs |
| Air Cells | 50 |
| Heating | Lumbar, calves and foot rollers (3 levels) |
| Zero Gravity | 2-stage |
| Wall Clearance | About 2" |
| Footrest Extension | Up to 6" (automatic) |
| Dimensions (Upright, W x L x H) | 33.0" x 71.0" x 47.5" |
| Dimensions (Reclined, W x L x H) | 33.0" x 79" x 34" |
| Shoulder Width | 22" |
| Seat Width | 21" |
| Minimum Door Width | 30.0" |
| Maximum User Weight | 270 lb |
| Chair Weight | 359.4 lb |
| Power | 110–120V, 50/60Hz |
| Box 1 (W x L x H) | 33.5" x 65.0" x 34.5" — 269 lb |
| Box 2 (W x L x H) | 15.4" x 49.6" x 28" — 65 lb |
| Box 3 (W x L x H) | 23.6" x 24.8" x 25.2" — 88.2 lb |
| Warranty | Free 2-year extended warranty included |
| Colors | Black, Brown, Taupe |
Ready to Build Your Dream Gym?
Our fitness experts are here to help you design the perfect setup for your space and goals. Schedule your free consultation today and let us bring your vision to life.
Osaki Trion Flex Duo 4D+3D
Vendor: Osaki
Add extended labor coverage
Covers this product only. Repairs by Fitness Supply technicians for customers in ID, UT, WY and MT.
Please confirm your delivery address is in ID, UT, WY or MT, or choose "No thanks."
Free labor on covered repairs through the plan term, counted from delivery, once the manufacturer's labor warranty ends. Plus 10% off parts after the manufacturer's parts warranty ends. Covers only the product on this page. Available only to customers in ID, UT, WY and MT. Cancel within 10 days of purchase for a full refund; non-refundable after that. Coverage details
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Product Availability & Lead Times
Not all products are kept in stock at all times. For most products, the average lead time from the time of order to delivery is approximately 2–3 weeks. Certain products may be temporarily backordered or have longer-than-average lead times due to manufacturer availability, production schedules, or shipping delays. Lead times are estimates and may vary by product and order.
Manufacturer Warranty
Every product ships backed by its manufacturer's warranty for lasting peace of mind.
0% APR Financing
Up to 18 months 0% APR available through promotional financing at checkout.
Dedicated Support Team
Questions before or after your purchase? Our equipment specialists are here to help.
Walking Technology, Independent Leg Rests and 50 Air Cells
The Osaki Trion Flex Duo pairs a 4D+3D dual mechanism on a flexible SL-track with independently adjustable leg rests and a scissor-action walking mechanism that stretches from the lower back to the knees. Health detection, 50 air cells, heated foot rollers and "Hey Alice" voice control are all built in.
Free shipping — ships free curbside anywhere in the contiguous US. Choose White Glove (+$275) at checkout to have the chair brought inside, set up in your room of choice and the packaging removed.
Idaho Falls area: free delivery and in-home setup by our own crew within 60 miles of the store. Pick Local Delivery at checkout and we will call to schedule.
Minimum doorway width: 30". Measure the narrowest inside width of the door frame and subtract about 2" for clearance.
Warranty: Includes a free 2-year extended warranty.
Key Features
A scissor-action leg mechanism mimics walking to stretch the lower back, glutes, hamstrings and knees.
Each leg rest adapts to its own position and movement.
4D unit for the back with adjustable intensity; 3D lower section for deep glute and upper-hamstring work.
Extends as the chair reclines to stretch the back from neck to thighs.
Reads heart rate, blood oxygen, microcirculation, HRV and fatigue, then personalizes the massage.
Built-in voice control with preset commands.
Work alongside air compression to relieve tension and boost circulation.
Compression therapy throughout the chair.
Three-roller system from heel to ball of foot, with three heat levels.
Roughly 75–83°F.
Even weight distribution to reduce pressure points.
Fully reclines about 2" from the wall.
Extends up to 6".
Quick access to programs, heat, volume, zero gravity and recline.
Charge devices and play audio during a session.
Description
The Trion Flex Duo is Osaki's flagship stretch chair: eight SORA-mode walking programs plus a full library of auto massage modes and body-part manual modes. Arrives in three boxes; fits a 30" doorway.
Programs
8 SORA walking programs: Core Comfort, Hamstring Harmony, Hip Sculptor, Cyclist's Bliss, Twist & Thrive, Dynamic Flex, Vitality Surge, Thigh Revival. Auto massage modes include Deep Tissue, Yoga Warrior, Neck & Shoulder, Thai Massage, Sports Refresh, Gentle Massage, Back & Spine, Ancient Massage, Relax & Sleep, Body Care, Waist & Hips, Thai Stretch, Gentle Press Massage, Sports Recovery, Lower Body Relief and Acupressure Balance. Manual modes include Kneading, Sync, Vibration, Tapping, Shiatsu and Acupressure, with head, neck, shoulder, back, waist and hip targeting.
Technical Specifications
| Specification | Detail |
|---|---|
| Massage Mechanism | Dual 4D (back) + 3D (glutes/hamstrings) |
| Track | Self-adaptive flexible SL-track |
| Walking Technology | Yes — scissor-action leg mechanism, 8 SORA programs |
| Air Cells | 50 |
| Heating | Lumbar, calves and foot rollers (3 levels) |
| Zero Gravity | 2-stage |
| Wall Clearance | About 2" |
| Footrest Extension | Up to 6" (automatic) |
| Dimensions (Upright, W x L x H) | 33.0" x 71.0" x 47.5" |
| Dimensions (Reclined, W x L x H) | 33.0" x 79" x 34" |
| Shoulder Width | 22" |
| Seat Width | 21" |
| Minimum Door Width | 30.0" |
| Maximum User Weight | 270 lb |
| Chair Weight | 359.4 lb |
| Power | 110–120V, 50/60Hz |
| Box 1 (W x L x H) | 33.5" x 65.0" x 34.5" — 269 lb |
| Box 2 (W x L x H) | 15.4" x 49.6" x 28" — 65 lb |
| Box 3 (W x L x H) | 23.6" x 24.8" x 25.2" — 88.2 lb |
| Warranty | Free 2-year extended warranty included |
| Colors | Black, Brown, Taupe |
Ready to Build Your Dream Gym?
Our fitness experts are here to help you design the perfect setup for your space and goals. Schedule your free consultation today and let us bring your vision to life.