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.
Built for Bigger Frames: Up to 6'8" and 400 lb
The Osaki Duke XL is a size-accommodating 4D chair with a wider, reinforced steel frame, an extended backrest for users up to 6'8", a 23" seat and a 400 lb capacity. It still delivers the full feature set: SL-Flex track, 48 air cells, deep calf massage, heating shawl, health detection and zero gravity.
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: 28" (disassembled); 35" assembled. 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
Wider reinforced steel build, extended backrest for users up to 6'8" and widened armrests.
Adds adjustable rhythm and speed to 3D rollers, varying intensity in real time.
Monitors fatigue, heart rate, blood oxygen, microcirculation and HRV to tailor the massage.
Flexible track covering the neck, shoulders and upper glutes.
14 air cells and four calf bumpers for targeted compression.
Gentle, targeted compression across the body.
Lumbar and foot heat plus an optional shawl for chest and abdomen, roughly 75–83°F.
Elevates the legs and spreads body weight to reduce spinal pressure.
Positions the rollers to match your contours.
Slides forward while reclining; needs 12" from the wall.
Rotating rollers with reflexology ridges.
Extends up to 7".
Quick controls, device charging and Bluetooth speakers; LED ambient lighting.
Description
Most massage chairs top out around 270–300 lb and 6'3". The Duke XL is built for the people those chairs leave out, without giving up the 4D mechanism, heat, air compression or health-detection features. Twenty auto programs and five manual modes. Comes in two boxes and fits a 28" doorway when disassembled.
Programs
20 auto programs: Quick Demo, Unwind, Stretch, Muscle, Gentle, Spine, Waist & Glutes, Leg & Foot, Back & Waist, Neck & Shoulder, Upper Body, Glutes, Sports Recovery, Lower Body Relaxation, Office Relief, Morning, Midday, Night, Vitality, Relax. 5 manual modes: Knead, Knock, Tap, Knead & Tap, Shiatsu.
Technical Specifications
| Specification | Detail |
|---|---|
| Massage Mechanism | 4D |
| Track | SL-Flex track |
| Air Cells | 48 (14 in the calf rest) |
| Heating | Lumbar, feet and heating shawl (chest/abdomen) |
| Zero Gravity | Yes |
| Wall Clearance | 12" |
| Footrest Extension | Up to 7" |
| Dimensions (Upright, W x L x H) | 35" x 60" x 45" |
| Dimensions (Reclined, W x L x H) | 35" x 67" x 37" |
| Shoulder Width | 26" |
| Seat Width | 23" |
| Minimum Door Width | 28" disassembled / 35" assembled |
| Maximum User Height | 6'8" |
| Maximum User Weight | 400 lb |
| Chair Weight | 325.6 lb |
| Power | 110–120V, 50/60Hz |
| Box 1 (W x L x H) | 32.3" x 49.2" x 51.2" — 239.9 lb |
| Box 2 (W x L x H) | 20.5" x 65" x 32.3" — 104.7 lb |
| Warranty | Free 2-year extended warranty included |
| Colors | Black, 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 Duke XL 4D
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.
Built for Bigger Frames: Up to 6'8" and 400 lb
The Osaki Duke XL is a size-accommodating 4D chair with a wider, reinforced steel frame, an extended backrest for users up to 6'8", a 23" seat and a 400 lb capacity. It still delivers the full feature set: SL-Flex track, 48 air cells, deep calf massage, heating shawl, health detection and zero gravity.
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: 28" (disassembled); 35" assembled. 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
Wider reinforced steel build, extended backrest for users up to 6'8" and widened armrests.
Adds adjustable rhythm and speed to 3D rollers, varying intensity in real time.
Monitors fatigue, heart rate, blood oxygen, microcirculation and HRV to tailor the massage.
Flexible track covering the neck, shoulders and upper glutes.
14 air cells and four calf bumpers for targeted compression.
Gentle, targeted compression across the body.
Lumbar and foot heat plus an optional shawl for chest and abdomen, roughly 75–83°F.
Elevates the legs and spreads body weight to reduce spinal pressure.
Positions the rollers to match your contours.
Slides forward while reclining; needs 12" from the wall.
Rotating rollers with reflexology ridges.
Extends up to 7".
Quick controls, device charging and Bluetooth speakers; LED ambient lighting.
Description
Most massage chairs top out around 270–300 lb and 6'3". The Duke XL is built for the people those chairs leave out, without giving up the 4D mechanism, heat, air compression or health-detection features. Twenty auto programs and five manual modes. Comes in two boxes and fits a 28" doorway when disassembled.
Programs
20 auto programs: Quick Demo, Unwind, Stretch, Muscle, Gentle, Spine, Waist & Glutes, Leg & Foot, Back & Waist, Neck & Shoulder, Upper Body, Glutes, Sports Recovery, Lower Body Relaxation, Office Relief, Morning, Midday, Night, Vitality, Relax. 5 manual modes: Knead, Knock, Tap, Knead & Tap, Shiatsu.
Technical Specifications
| Specification | Detail |
|---|---|
| Massage Mechanism | 4D |
| Track | SL-Flex track |
| Air Cells | 48 (14 in the calf rest) |
| Heating | Lumbar, feet and heating shawl (chest/abdomen) |
| Zero Gravity | Yes |
| Wall Clearance | 12" |
| Footrest Extension | Up to 7" |
| Dimensions (Upright, W x L x H) | 35" x 60" x 45" |
| Dimensions (Reclined, W x L x H) | 35" x 67" x 37" |
| Shoulder Width | 26" |
| Seat Width | 23" |
| Minimum Door Width | 28" disassembled / 35" assembled |
| Maximum User Height | 6'8" |
| Maximum User Weight | 400 lb |
| Chair Weight | 325.6 lb |
| Power | 110–120V, 50/60Hz |
| Box 1 (W x L x H) | 32.3" x 49.2" x 51.2" — 239.9 lb |
| Box 2 (W x L x H) | 20.5" x 65" x 32.3" — 104.7 lb |
| Warranty | Free 2-year extended warranty included |
| Colors | Black, 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.