• Inada Flex 3S Massage Chair
  • Inada Flex 3S Massage Chair - Side
  • Inada Flex 3S Massage Chair - Front
  • Inada Flex 3S Brown Massage Chair - Side
  • Inada Flex 3S Brown Massage Chair - Front
  • Inada Flex 3S Brown Luxury Massage Chair - Side
  • Inada Flex 3S Brown Massage Chair - Reclined
  • Inada Flex 3S Cream Massage Chair - Front
  • Inada Flex 3S Cream Massage Chair - Side
  • Inada Flex 3S Cream Massage Chair
  • Inada Flex 3S Cream Massage Chair - Reclined



Inada Flex 3s®

(5 customer reviews)


This model is discontinued and is currently out of stock.

The Inada Flex 3S offers a unique massage chair experience that integrates genuine shiatsu massage techniques with functional stretching.

The name Flex 3S speaks to the three “S” curves in your spine (cervical, thoracic, and lumbar). So not only does Flex 3S provide a great massage, it also helps to promote and maintain the three “S” curves in your spine.

The stylish contemporary design and ergonomic detail of the Flex 3S creates a comfortable cradling sensation once seated. Then select from 11 full-body or focused sessions that deliver a therapeutic yet relaxing experience.

As the massage commences you’ll notice an array of features including hot stone-like heat for the hands and feet. This blend of ancient Japanese massage techniques with mobility and posture correcting movements make Flex 3S truly one-of-a-kind.

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    Body Scan



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Inada Flex 3S Shiatsu Point LocatorInada Flex 3S Remote Control
Patented body scanning technology customizes each massage session to your individual back profile.

Full-Body Massage
Just the right amount of pressure from head-to-toe for an ultra-relaxing shiatsu massage with the combined compression air cells and rollers.

Posture-Enhancing Shoulder Stabilizers
Adjustable shoulder stabilizers to improve back mobility and flexibility. Most massage chairs that have shoulder compression units are fixed and may not fit people of different sizes. The Flex 3S shoulder units can move up or down to fit anyone.

Hot Rock Style Heat
Light heat on your hands and soles of your feet for ultimate relaxation and toasty comfort on those cold winter nights.

Choreographed Movements
Specialized movements shown to improve the range of motion in back and hamstrings.

Hip and Thigh Massage
Inward motion and outward release melt away muscle soreness and fatigue.

Removable Headrest
Adjustable head pillow allows you to choose the level of neck support you prefer.

Hand-Held Remote
Simple and intuitive remote offers 11 pre-programmed sessions and over 1,000 possible manual massage combinations.

Therapeutic Tortion
Movements designed by expert physical therapists release tension in back and legs.

Health Benefits

Enhance Mood

Increase Mobility

Boost Immune System

Correct and Maintain Posture

Massage Styles

Swedish Massage

Helping Common Problem Areas

Arms and Hands

Helping Common Conditions


Back Pain


Model Name: Inada Flex 3s®
Model Number: HCP-373A
Flex 3S Manual: Download the Flex 3S manual here
Brochure: Download a PDF of the brochure.
Chair Dimensions (upright): 52.4″ L x 32.7″ W x 41.7″H
Chair Dimensions (reclined): 76.8″ L x 32.7″W x 29.5″H
Chair Weight: 165 lbs.
Reclining Angle: 165°
Footrest Extension: Yes
User Height Range: 5’0″ – 6’2″
User Weight Limit: 240 lbs.
Roller Description: Inada 3D, 4-roller seesaw system
Stroke Length: 27.2″
Preset Sessions: 6
Manual Sessions: 5
Manual Combinations: 500
Program Timer: 30 min
Heat: Hands and soles of feet
Seat Massage: Air cells
Calf Massage: Air cells
Foot Massage(soles, heels, toes): Air cells
Head and Neck Massage: Yes
Arm Massage: Air cells
Total Air Cells: 50
Total Motors: 4
Power Supply: 120V/60Hz/150W
Square Inches of Coverage: 1,000
Upholstery: Antibacterial Synthetic leather
Safety Features: Breakaway power cord


At Inada, we are committed to delivering the best massage chair experience money can buy. As part of this commitment, we provide buyers with the industry’s finest and most comprehensive massage chair warranty available. If you carefully study our warranty, it will be clear to you that we confidently stand behind the quality of our massage chairs.


If you have a warranty or product question, contact Inada’s technical support team at 720-616-5003. In the event you detect and report, during the Service Period, a defect in the workmanship or material of the Equipment, then we shall provide the services hereinafter described. Your warranty registration or your first use of the service phone line shall constitute your acceptance to the terms of this Limited Warranty including the indemnification provisions. Please keep this Limited Warranty and your original proof of purchase in a safe and accessible place.

1) DEFINITIONS – For the purpose of this Limited Warranty, the following terms shall have the following meanings: (1) “Distributor” shall mean Inada USA; (2) “Equipment” shall mean an Inada product or system; (3) “Customer” shall mean only the residential end-user of the Equipment who is the original purchaser of the equipment from an authorized reseller. Usages of “you” or “your” refer to the Customer; (4) “Commencement Date” shall mean the date on which the Equipment is first purchased by a Customer from the Distributor or from an authorized Inada reseller; (5) “Service Period” shall mean the THREE (3) year period commencing on the Commencement Date; (6) “Administrator” shall mean Inada USA. Usage of “we,” “us,” or “our” shall mean the Administrator. You may contact the Administrator if you have questions regarding this coverage. We can be reached by phone at 720-616-5003 or by mail at 2125 32nd Street, Boulder, CO 80301.

2) COVERAGE – During the Service Period, we will repair or replace, at our sole discretion, any defective Equipment. We will return the Equipment to a properly functioning state. To obtain performance you must be the original purchaser and be able to provide us with the original, dated proof of purchase for the Equipment. This Limited Warranty extends only to Customers. Only our representatives may perform repairs on the Equipment under this Limited Warranty. Replaced parts shall be covered under this Limited Warranty for the remainder of the Service Period or for thirty (30) days, whichever is longer. We will provide on-site service as necessary on regular workdays between the hours of 8:00 A.M. and 5:00 P.M. your local time. Warranty registration is not a condition precedent to obtaining performance under this Limited Warranty. If a particular replacement part is not available from the manufacturer, we will make reasonable efforts to locate a compatible replacement part. If we are unable to locate a compatible part, we may replace your Equipment with a similar product. Under no circumstances shall the retail replacement value exceed the original net price paid for the Equipment. In the event you choose not to accept a replacement for your Equipment, we shall no longer be responsible for making repairs under this Limited Warranty. This Limited Warranty may be not be transferred at any time during the original term.

3) EXCLUSIONS – This Limited Warranty does not include service needed on Equipment as a result of any of the following: (1) Dropped product or components including remote controls, cracked remote controller screens, or cracked remote housing; (2) Cosmetic changes, tears, or failure of fabrics, woods, foam, pads, plastics, upholsteries, exterior coverings, and damages and changes resulting from normal wear and tear; (3) Installation, set-up, or relocation from the originally installed location; (4) Negligence, misuse, abuse, improper maintenance, electrical disturbances and power surges, acts of nature, or work, attachments, additions, alterations, or modifications by persons other than authorized Administrator service providers; (5) Failure by the Customer to use a high-quality surge protector during the entire Service Period; (6) Improper operating environment; (7) Any problem not involving a defect; (8) Damage or malfunction whatsoever caused by an animal or pet; (9) Damage or malfunction whatsoever caused by liquids of any kind; (10) Rental, business, commercial, institutional or other non-residential use; (11) Unnecessary service calls. If no problem is found upon diagnosis by us or any other third party, you may be charged our standard rate for service calls, shipping costs, and parts; and (12) Use of any item with the Equipment if the item is not designated for use with the Equipment. Floor models that have been on display for more than nine (9) months are not covered under any provisions of this Limited Warranty.

4) YOUR RESPONSIBILITIES – You shall: (1) operate the Equipment in an environment meeting the requirements delineated in the Equipment’s owner manual and other provided instructions; (2) protect the supply of electricity to the Equipment through the use a high-quality surge protection device; (3) promptly report to us any diagnostic messages; (4) permit no work on the Equipment except by our authorized service providers; (5) have an adult representative present whenever we provide support services; (6) perform telephone or email diagnostic procedures as requested by us; (7) safeguard and return (at our expense) all replacement parts shipped to you. You assume financial responsibility for all parts and accessories shipped to you until the item or part replaced is returned to us.

5) EXCULPATION AND INDEMNIFICATION – Our maximum liability under this Limited Warranty is limited to the cost of repairing or replacing defective Equipment. We shall not be liable to you for incidental and consequential damages. Some States do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This Limited Warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. We have provided this Limited Warranty pursuant to an agreement between the Distributor and us. All our obligations under the agreement run solely to the Distributor. Under no circumstances shall you or anyone else ever be deemed to be a third-party beneficiary of the agreement. We shall not be liable for, and you hereby indemnify and hold us and every authorized service provider harmless from, damage, claim, or cause of action, direct or indirect, incidental or consequential, occurring to you, or to the employees or agents of you, or to any other third party, or to the property of any of the foregoing, which may arise as a result of any defect covered by this Limited Warranty or as a result of any service performed under this Limited Warranty. This Limited Warranty shall be governed by and construed in accordance with the laws of the State of Colorado.

5 reviews for Inada Flex 3s®

  1. Daisy G

    I spent a great deal of time researching massage chairs and was extraordinarily impressed by the reputation and quality of Inada. I’m ecstatic to now be the proud of owner of a Flex 3s. The Full Body session is absolutely divine! I have lower back pain, and it helps me tremendously. And, the way opens up my chest as it draws my shoulders back and down is amazing! On top of all that, I sleep so much better – miraculous! What a fantastic chair! I’m super excited about my purchase as it certainly adds so much value to my overall quality of life. I love my Inada massage chair!

  2. Brandon T

    The chair is extremely comfortable and performs a great massage every time.

  3. Julian Janik

    It’s beyond relaxing, this is euphoric. You’ll be sporting a smile from ear to ear after trying it. The chair is a hit among peers and anyone who tries it.

  4. Erik O

    My Inada massage chair has been absolutely amazing! I suffer from chronic back pain and have a very stressful job, but after sitting in my chair for only a few short minutes both seem to disappear. My back is no longer stiff and the instant relaxation I get makes me feel like a new person. I make every one of my friends try it out so they can see just how great it is too.

  5. Cyndi Robinson

    I have no words to describe how awesome this chair is best investment I have ever made.

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