Kahuna Dios Flexa Massage Chair | World's First 181° Hyper-Extension 4D SL-Track
Kahuna Dios Flexa Massage Chair | World's First 181° Hyper-Extension 4D SL-Track
- Regular price
- $8,499.00
- Regular price
- $11,999.00
- Sale price
- $8,499.00
- Unit price
- per
Pay over time — personal & business options
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A massage chair whose backrest opens past flat to 181 degrees.
- 36 rotating acupressure rollers at the calves
- 28″ W × 62″ L × 45″ H upright, 233 lbs
- Fully assembled, and it rolls on built-in castors
Couldn't load pickup availability
Shipping & Delivery
Shipping & Delivery
Your Kahuna chair ships free from the manufacturer's California warehouse via LTL freight. Delivery to most addresses in the contiguous US takes 10 to 14 business days after shipment, following 3 to 5 business days of processing. You'll receive tracking information by email once the carrier picks up your order.
Delivery options.
Threshold delivery (free): The carrier schedules a delivery window and brings your chair to your main front door. Moving it inside, placement, and assembly are not included — plan to have help available.
White Glove delivery, included at no charge: A professional team delivers to the room of your choice, fully assembles the chair, and removes all packaging. Contact us to schedule this before your order ships.
Scheduling your delivery. After your chair ships, the freight carrier will contact you directly to arrange a delivery appointment. Respond promptly — missed delivery attempts can result in terminal storage fees and further delays.
CRITICAL — inspect before you sign. Check every box carefully before signing the Bill of Lading. Cosmetic damage can be accepted. If a carton is punctured or crushed, or the chair itself is damaged, refuse that item and call us on (888) 500-5675 while the driver is still there. Note the damage on the Bill of Lading before you sign, writing exactly what you see, and ask the driver to initial it. If the driver will not initial it, note the damage anyway, sign, and photograph the Bill of Lading. Contact us within 48 hours with photos. Once the damage is documented on the Bill of Lading we can file a valid freight claim and arrange a replacement at no cost to you. If you refuse for a reason other than damage, or without contacting us first, return freight costs may become your responsibility. Signing a clean BOL releases the freight carrier from all liability. Claims filed after a clean signature are routinely denied.
Good to know. Deliveries to Alaska and Hawaii are available but carry a freight surcharge per chair — contact us before ordering for the exact rate. White Glove delivery adds approximately one additional week to transit time. Address changes after shipment may incur carrier re-routing fees.
Questions before you order? Call or text (888) 500-5675, Mon–Sat 9am–6pm EST. We coordinate every delivery ourselves.
Free shipping applies to standard threshold delivery within the contiguous 48 US states. Transit times are carrier estimates and may extend in exceptional circumstances. View our full Shipping & Delivery policy →
Warranty
Warranty
Kahuna (AJX, LLC) warrants all massage chairs for a minimum of one full year with parts and labor. The DIOS models we carry are covered longer.
Coverage by model. DIOS-1288: 3 years — all parts and labor, with on-site repair service at no cost to you. DIOS-6800, DIOS-7300 and DIOS Flexa: 2 years. On the 6800 and 7300 that period covers all parts and labor with on-site service; on the Flexa, year one covers parts and labor with on-site service and year two covers parts, with shipping to the service center at the owner's expense. Touch-screen remotes and tablets carry one year on every model.
Register within 30 days. Kahuna requires warranty registration within 30 days of delivery — coverage is void if registration isn't received in that window. We'll send you the link with your order. It takes two minutes; don't skip it.
Home use only. Kahuna's warranty covers residential use, and its warranty certification states that any commercial use of the chair voids the warranty. Placing a chair in a MedSpa, gym, clinic, studio or any business setting? Call us before you order and we'll point you to equipment that's warranted for that environment.
Buy new, from an authorized dealer. The warranty is non-transferable and applies to the original purchaser — it does not carry over to a chair bought secondhand. Recovery Room Direct is an authorized Kahuna dealer, so your chair ships through authorized distribution with full factory coverage intact.
What isn't covered. Shipping expenses; normal wear and tear including velcro, zippers and tears in fabric or leather; physical or intentional damage; and accidents or neglect such as stains, fluids, mold, water damage, animal damage, cuts and burns.
Extended coverage can only be purchased at the time you buy the chair — it can't be added once the original term ends. Ask us before you order.
How to make a claim. Contact us — as your authorized dealer we handle the claim with the manufacturer for you. Email sales@recoveryroomdirect.com or call (888) 500-5675 with your order number and photos of the issue.
Summary of the manufacturer's warranty. Their official warranty document governs.
Return Policy
Return Policy
We want you fully confident before you buy. If your Kahuna chair isn't the right fit, you have 30 days from delivery to return it. Need to cancel before it ships? Contact us as soon as possible. There is no fee as long as we have not yet submitted your order to the manufacturer. After we submit it but before it ships, a 5% administrative fee may apply, and we waive it whenever we are not charged.
How to start a return. Email us your order number at sales@recoveryroomdirect.com and we'll issue a Return Merchandise Authorization (RMA) number along with the correct return address. Returns sent without a valid RMA will not be accepted at the warehouse.
Condition required. The chair must be returned in brand-new, unused condition in its original packaging, with all boxes, accessories, and components included. Kahuna will not accept returns that are improperly packed or missing original materials.
What it costs to return. We want to be upfront: returning large freight equipment involves real costs. Kahuna charges a 15%–35% restocking fee on all returns — the exact rate is determined by Kahuna upon inspection. You are responsible for all return freight charges, and if your original order shipped free, the actual outbound freight cost is also deducted from your refund.
Non-refundable items. Open-box sale items are final sale — no returns accepted.
Financing cancellations. If your order was financed through Affirm or Synchrony, cancellation will result in a 10%–25% merchant processing fee charged by the financing provider — this applies even to pre-shipment cancellations on financed orders.
Damaged on arrival? You're fully protected. If you accepted the delivery and documented the damage on the Bill of Lading, we handle the freight claim and arrange a replacement at no cost — no restocking fee, no return freight charges.
Once your return is received and inspected, allow approximately 3–4 weeks for your refund to reflect on your original payment method — this includes return transit time, warehouse inspection, and bank processing. We're here Mon–Sat, 9am–6pm EST. View our full Return Policy →
Price Match Guarantee
Price Match Guarantee
Found it for less at an authorized dealer? We'll match it — before or after you buy.
We're factory-authorized for every brand we carry. If you find this exact model listed at a lower price by another authorized retailer, send us the link and we'll match it before you check out. Already purchased? We'll refund the difference within 30 days of your order date.
To claim: Email us or call with a link or screenshot showing the lower price, the retailer name, and model number. We'll confirm authorization status and apply the match — typically same business day.
Applies to authorized U.S. retailers only. Excludes open-box, clearance, used, and bundle pricing. Item must be in stock at the competing retailer.
View our full price match terms
PRODUCT DESCRIPTION
Beyond 180°. The Chair That Stretches as Hard as You Work.
Every massage chair on the market maxes out at flat. The Kahuna DIOS Flexa goes one degree further — into a supported backward arch that changes what spinal decompression and hip-flexor release can feel like inside a massage chair.
The 56” SL-Track is the longest in the DIOS line. The 4D roller module adjusts across six depth levels. The 4-Step Swinging Stretch Footrest moves progressively — not snapping to a single fixed angle.
Shop Pay installments, powered by Affirm, available at checkout — spread the investment over time. White Glove Delivery included free.
The DIOS Flexa is a pre-order, and we confirm the ship date with you when you order. If you need a chair right now, we’d point you to the DIOS-7300, which ships sooner. We want you to buy the right chair, not just a chair.
Here’s what makes the Flexa different: it is the only massage chair in the world designed to recline past 180°. That distinction matters if you train hard, sit for long hours at a desk, or have tight hip flexors and a compressed lumbar — because what happens to your spine at 181° is measurably different from what happens at 155°. We’ll explain exactly why below. And if you decide the 181° stretch isn’t your priority, we’ll tell you which chair is.
The 181° Difference
One degree past flat. Here’s why that changes what spinal decompression feels like in a massage chair.
Past Flat, Into Release
Standard zero-gravity chairs recline to approximately 125°–155°, redistributing body weight away from the spine. Full flat — 180° — reduces nucleus pulposus pressure further. The DIOS Flexa adds the final degree: 181°, positioning the spine in a mild supported extension arc.
Research published in the European Spine Journal (Wilke et al., 1999) mapped intradiscal pressure across body positions, documenting substantial drops as the spine approaches horizontal. The Flexa is engineered based on this body of work — it reaches the position where passive spinal traction and anterior longitudinal ligament lengthening may occur simultaneously with full-body massage.
The 56” SL-Track — the longest in the DIOS line — ensures that even at full 181° extension, the rollers maintain continuous contact from the cervical spine through the gluteal fold without losing coverage at the critical L4–L5 junction.
Two Modes, One Chair
The Flexa’s recline system separates into two distinct experiences: a standard casual mode for conventional full-body relaxation, and the stretch experience that takes the chair to its signature 181°. Switch between them mid-session or let an auto-program run the sequence for you.
Intelligent 4D Roller System
Six levels of manual depth adjustment. Four independent movement axes. One roller head engineered to work across a 56” track.
4D Advanced Massage Module
Up-down, side-to-side, in-out depth, and variable speed rhythm — four independent movement dimensions that simulate the pressure and motion patterns of trained hands without repeating the same fixed path twice.
56” Extended SL-Track
The longest SL-Track in the DIOS line. Rollers travel continuously from the cervical vertebrae through the seat — so your lumbar and glutes get covered in a single fluid pass, not two separate sequences.
6-Level Adjustable Depth
Six discrete mechanical depth positions let you dial in surface-level relaxation for sensitive days or deep-tissue pressure for post-training recovery — adjustable mid-session without stopping the program.
Full-Body Recovery Engineering
The Flexa doesn’t stop at your back. The calf, foot, and airbag system is engineered with the same depth of thought as the roller track.
Advanced Calf & Foot System
The calf section houses 36 rotating acupressure rollers — not standard airbags, but mechanical nodes that replicate the thumb-rolling technique used in sports massage. A calf traction and stretch function extends the lower leg to decompress the ankle joint, while smart auto leg extension adjusts for seated height in real time.
At the foot, triple rollers work from heel to toe, adding scraping-style pressure along the plantar fascia. The 4-Step Swinging Stretch System synchronizes the footrest’s pivot arc with the chair’s recline sequence, so the stretch builds progressively through each phase.
Dual-Zone Heat Therapy
Heating elements run across both the lumbar band and the calf pads simultaneously. Heat applied before and during roller work may help ease paraspinal muscle tension in preparation for deeper pressure — particularly effective for early-morning sessions when tissue is stiff.
Full-Body Airbag Massage
Airbags across the shoulders, arms, seat sides, calves, and feet inflate in coordinated sequences — compressing and releasing each zone to support circulation and reduce localized tension throughout the session.
4-Step Swinging Stretch Footrest
The open-style footrest pivots through four distinct arc positions — progressively elongating the hip flexors, hamstrings, and lower back across the session rather than locking into a single static angle.
Dual-Zone: Back & Calves
Simultaneous heating across the lumbar pad and calf trough. Warmth applied during roller work may help ease muscle tension in preparation for deeper pressure — effective for morning sessions on stiff tissue.
A Chair You Control Without Touching It
Voice commands, a tablet that follows you, 24+ programs on a touchscreen, and a charging pad for when you emerge from your session.
Voice-First Control
Say “Hi, Massage!” and the chair activates hands-free. Once your session is running, voice commands adjust the program, speed, or intensity without breaking position. When you’re fully reclined at 181° with your arms supported by airbags, reaching for a remote isn’t practical — so the Flexa doesn’t ask you to.
24+ Programs on a Touchscreen
The LCD touchscreen displays all programs in a tap-grid layout: Morning Mode, Night Mode, Female Mode, Male Mode, Lower Body, Fatigue Recovery, Sleep Mode, Air Mode, and body-area programs targeting the shoulder, waist, and acupressure zones. The 360° rotating tablet holder adjusts to any angle so the screen stays in view whether you’re upright or fully reclined.
A wireless charging pad on the armrest console means your phone is ready when your session ends — and the USB-C port handles anything that needs a cable connection.
Bluetooth Speakers + Voice Control
Integrated speakers pair via Bluetooth for ambient audio during sessions. Voice commands start and adjust the chair hands-free — say “Hi, Massage!” to activate, then control intensity and programs by speaking.
360° Rotating Tablet Holder
The articulating tablet arm rotates a full 360° and locks at any angle. It stays in your field of view at any recline level — critical when navigating programs while the chair is at 181°.
Wireless Charging & USB-C
A Qi-compatible wireless charging pad sits on the armrest console alongside a USB-C port. Dock your phone before the session starts — it’s fully charged and waiting when your 30 minutes end.
Three Ways to Use the DIOS Flexa
The chair’s 24+ programs are designed around three distinct moments in the day. Here’s how buyers typically structure their sessions.
Reset Before the Day Starts
Morning Mode activates a lighter kneading sequence with dual-zone heat. The calf traction stretch runs while the lumbar rollers ease overnight compression. Most sessions run 15–20 minutes before the workday begins — the chair auto-stops at 30 minutes. You leave warmer, looser, and more upright than when you sat down.
Compression When Your Muscles Need It Most
After training, the Lower Body and Fatigue Recovery programs run an airbag compression sequence through the legs while the rollers address paraspinal and shoulder tension. The 181° recline combined with leg elevation may help ease the systemic inflammation and neural fatigue associated with intense exercise — without a separate recovery appointment.
The Transition Into Sleep
Sleep Mode runs a progressively slower sequence ending with the chair in its deepest zero-gravity position. Pair it with Bluetooth audio. The heat stays on through the session; when it ends, the chair slowly returns to upright. Many users report falling asleep before the 30-minute limit — the auto-stop keeps the session from running indefinitely.
Who Buys the DIOS Flexa
Three buyer profiles keep appearing in conversations about this chair. You might recognize yourself in one of them.
Training Hard Enough to Need This
Competitive cyclists, runners, CrossFit athletes, and strength coaches who train 5–6 days a week and spend real money on recovery. The 181° stretch plus the 36-roller calf acupressure system addresses what foam rolling can’t: simultaneous full-body compression and progressive hip-flexor extension. The 30-minute auto-stop keeps sessions disciplined.
Undoing 10 Hours of Sitting
Executives, remote workers, and surgeons who spend long hours forward-flexed at a screen. The Flexa’s signature strength — spinal extension past flat — directly counters the anterior load that accumulates over a 10-hour workday. Fifteen minutes in Evening mode costs nothing in time. The wireless charging pad means your devices don’t miss the break either.
A Chair People Remember
The Flexa is the world’s first 181° chair, and the recline is the thing people remember. The Rose Gold and Gray colorways photograph well in a room you have designed around it. Kahuna warranties this chair for home use only, so call (888) 500-5675 before placing one in a business setting.
The Ownership Math
A monthly massage at a good therapist runs $80–$150 per session. At two sessions a month, that’s $1,920–$3,600 per year — the Flexa pays for itself in two to four years while delivering daily sessions at home. Shop Pay installments, powered by Affirm, are available at checkout if you’d prefer to spread the cost over time.
Available Colors
The DIOS Flexa ships in two finishes. Both are available in the pre-order. Contact us for the current estimated ship date.
DIOS Flexa vs. DIOS-7300 vs. DIOS-1288
How the Flexa fits into the Kahuna DIOS line — honestly.
| Feature | DIOS-7300 Ships in 3 to 5 business days |
DIOS Flexa Pre-Order |
DIOS-1288 Ships in 3 to 5 business days |
|---|---|---|---|
| Roller System | 7D Dual Core | 4D — 6-Level Depth | 8D Dual Core + Air Float |
| Max Recline | ~155° (3-Stage ZG) | 181° Hyper-Extension | Multi-position ZG |
| SL-Track | SL-Track | 56” Extended SL-Track | 54” SL-Track |
| Zero Gravity | 3-Stage | 3-Level | Multi-position |
| Calf System | 3D Mechanical Kneading | 36-Roller Acupressure + Traction | — |
| Stretch System | Standard | 4-Step Swinging | Standard |
| Auto Programs | 24 AI | 24+ | 24 AI |
| Heat Zones | Lumbar | Back + Calves (Dual) | — |
| Wireless Charging | — | Yes | — |
| USB-C Port | — | Yes | — |
| Max User Weight | 280 lbs | Contact us | 265 lbs |
| Warranty | 2 Years | 2 Years | 3 Years |
Our honest take: If the 181° hyper-extension is the specific feature you’ve been searching for, the Flexa is the only chair that delivers it. If your priority is the most sophisticated AI roller massage and you don’t need maximum stretch recline, the DIOS-7300 ships sooner for less. If budget is secondary and you want the 8D Dual Core flagship with a 3-year warranty, the DIOS-1288 is the top of the line. The “—” cells indicate specs not published by the manufacturer — call us at (888) 500-5675 before ordering if you need those specifics.
Technical Specifications
Complete specifications for the Kahuna DIOS Flexa. Provided by Kahuna and subject to change without notice.
| Model | Kahuna DIOS Flexa |
| Available Colors | Gray · Rose Gold |
| Roller Technology | 4D Advanced Massage Module — 6-level adjustable depth |
| Track System | SL-Track — 56 inches (neck through glutes) |
| Max Recline | 181° Hyper-Extension |
| Zero Gravity | 3-Level positions |
| Stretch System | 4-Step Swinging Stretch (open-style footrest) |
| Auto Programs | 24+ intelligent auto programs |
| Air Massage | Full-body airbag — shoulders, arms, seat sides, calves, feet |
| Calf System | 36 rotating acupressure rollers · calf traction stretch · 3D kneading air compression · toe-to-tip triple foot rollers · scraping massage |
| Heat Therapy | Dual-zone — lumbar + calves (simultaneous) |
| Body Scanner | Automatic body scan (shoulder width, spine length) |
| Auto Foot Extension | Yes — smart auto leg extension |
| Voice Control | Yes — “Hi, Massage!” activation |
| Control System | LCD touchscreen tablet remote · 360° rotating tablet holder |
| Bluetooth Audio | Yes — integrated speakers |
| Wireless Charging | Yes — Qi-compatible armrest pad |
| USB-C Port | Yes |
| Castors | Yes |
| Session Time Limit | Max 30 minutes (auto-stop) |
| Dimensions (upright) | 28” W × 62” L × 45” H |
| Net Weight | 233 lbs (per manufacturer product description) — contact us before freight planning to confirm |
| Power | Standard 110–120V outlet |
| Assembly | Fully assembled |
| Warranty | 2 Years Limited |
24+ Auto Programs (Partial List)
Morning Mode · Night Mode · Female Mode · Male Mode · Lower Body · Fatigue Recovery · Sleep Mode · Air Mode · Shoulder Pain Relief · Shoulder Recovery · Acupressure · Shoulder Health Management · Waist Pain Relief · Waist Concentration · Waist Acupressure · Waist Health Management
Specifications are provided by Kahuna and subject to change without notice. Contact Recovery Room Direct at (888) 500-5675 to confirm before purchase. The DIOS Flexa is a wellness device and is not intended to diagnose, treat, cure, or prevent any medical condition.
What Ships with the DIOS Flexa
Every item listed below physically ships in the box. No in-home assembly required — the chair arrives fully assembled.
Fully assembled, ready to plug in
LCD touchscreen with articulating arm
Program reference and voice command setup
Standard 110–120V
Shipping & Pre-Order Delivery
Pre-Order Status
The DIOS Flexa is a pre-order product. Kahuna confirms the estimated ship date when you order. Your order secures your place in the production run at today’s price. Recovery Room Direct will contact you with tracking information when your unit ships. If there is any delay, we will notify you directly before the estimated ship date.
Free Freight Delivery
The DIOS Flexa ships via freight carrier at no charge. Tracking is provided when your shipment is dispatched. Freight delivery in the continental US typically arrives 10–14 business days after the ship date.
White Glove Delivery — Included Free
White Glove delivery — room-of-choice placement and packaging removal — is included at no extra charge. The chair arrives fully assembled; castors are included for repositioning once delivered.
Doorway Clearance
The DIOS Flexa is 28” wide. Most standard interior doorways are 32”–36”, providing clearance for upright entry. The chair is 62” long, so corridor turns need to be considered. If your space has narrow passages, call us at (888) 500-5675 before ordering and we’ll help assess access.
DIOS Flexa Frequently Asked Questions
What does 181° recline actually feel like?
At 181°, the chair goes one degree past fully flat — into a supported backward arch. Your head is slightly lower than your hips, your hip flexors passively extend, and the anterior structures of your torso lengthen while the rollers continue working along your spine. Most users describe it as the point where the stretch transitions from relaxing to actively therapeutic. If you’ve received manual traction during a physiotherapy session, 181° approximates a self-administered version of that positional spinal unloading.
When will the Kahuna DIOS Flexa ship?
Kahuna confirms the estimated ship date when you order. Orders placed now are pre-orders — your production slot is secured at the time of purchase. Recovery Room Direct will send tracking information when your unit ships. If you need a chair sooner, the DIOS-7300 ships within 3–5 business days.
Is Shop Pay financing available for the DIOS Flexa?
Yes. Shop Pay installments, powered by Affirm, are available at checkout for qualified buyers. You can check your rate at checkout without affecting your credit score. Massage chairs are listed as not eligible for HSA or FSA reimbursement, and no letter pathway is published for them. We make no eligibility claim for this category. See what the published lists say.
How does the DIOS Flexa compare to the DIOS-7300?
The DIOS-7300 uses a 7D Dual Core roller system with more AI-driven massage intelligence and a 280 lb weight capacity. The DIOS Flexa (pre-order) wins on stretch: 181° recline, a longer 56” track, a 36-roller calf acupressure system, dual-zone heat, wireless charging, and USB-C connectivity. If the 181° hyper-extension is a specific goal, the Flexa is the right chair. If you want the most sophisticated roller massage without needing maximum stretch recline, the DIOS-7300 ships sooner for less.
Can I cancel or modify my pre-order before it ships?
Yes — pre-order cancellations are accepted prior to your unit shipping. Contact Recovery Room Direct directly at (888) 500-5675 or through our contact page to request a modification or cancellation. We’ll confirm your order status and process the request promptly.
Will the DIOS Flexa fit through a standard doorway?
The DIOS Flexa is 28” wide. Most standard interior doorways (32”–36”) provide adequate clearance for upright delivery. The chair ships fully assembled at 62” long, so hallway turns and stairwells need to be considered. If your delivery path has tight corners or narrow passages, call us at (888) 500-5675 before ordering and we’ll walk through the logistics with you.
Can the DIOS Flexa be used alongside a medical or physical therapy program?
The DIOS Flexa is a wellness device, not a medical device. It is not intended to diagnose, treat, cure, or prevent any medical condition. Many buyers use the chair to complement — not replace — clinical care, particularly during lower-intensity recovery phases. If you’re under the care of a physician or physical therapist, discuss how a massage chair may fit into your protocol before use.
What warranty does the DIOS Flexa come with?
The DIOS Flexa includes a 2-year limited warranty through Kahuna. As an authorized Kahuna dealer, Recovery Room Direct facilitates warranty claims directly with the manufacturer. For warranty service questions, contact us at (888) 500-5675.
Is the DIOS Flexa suitable for daily use?
Yes. The 30-minute auto-stop keeps each session within a reasonable duration. Programs like Morning Mode, Night Mode, and Sleep Mode are built for daily rotation. Most buyers use the chair once per day, 15–30 minutes per session. Alternate between lighter programs (Air Mode, Sleep Mode) and more intensive sequences (Fatigue Recovery, body-area programs) to vary the stimulus across consecutive days.
The Stretch No Other Chair Can Match
Reserve the world’s first 181° hyper-extension massage chair. Pre-order now, with the ship date confirmed when you order. Free freight delivery included.
Learn more about SL-Track rail systems in our rail system comparison guide, or browse the full massage chair collection.
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