Infinity IT-8500™ Plus Massage Chair — Deep Tissue Massage with a Full-Back Stretch
The Infinity IT-8500 Plus massage chair delivers a deep tissue therapeutic massage experience built around one standout feature: a full-back stretch program that stretches the full length of the back. Whether you're recovering from a hard workout or simply unwinding after a long day, the IT-8500 Plus combines advanced massage engineering with full-body comfort.
At the core of the chair is a 4-node S-Track back massage mechanism that cycles through five massage techniques as it travels the natural curve of your spine — from neck to lower back. The system is built to stretch the whole back through a combination of Decompression Stretch, Waist Twist Therapy, and a Near-Flat Reclining S-Track that achieves true inversion, following the body's natural S-curve for a full-length back stretch.
Pair that with Lumbar Heat to loosen tight muscles, Bluetooth speakers or the built-in SoothMe™ Sound Therapy nature sound library to help you relax, and a Triple Roller Total Sole reflexology foot massage to finish the session from head to toe. Control the entire experience from your phone with the Infinity mobile app (iOS & Android).
The IT-8500 Plus looks as good as it performs, bringing spa-quality, therapeutic massage chair benefits into your home.
Wellness & Recovery Benefits of the Infinity IT-8500 Plus
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A full-back stretch that opens you up. Decompression Stretch, Waist Twist and the near-flat reclining S-Track with True Inversion lengthen the whole back, supporting flexibility, mobility and a looser-feeling spine.
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Deep tissue recovery. The 4-node S-Track mechanism follows your spine's natural curve with kneading, knocking and shiatsu, helping reduce post-workout muscle soreness and stiffness.
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Healthy circulation. Zero gravity recline evenly distributes your weight and lifts your legs, while airbag compression across the arms and legs helps support healthy blood flow.
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Warm, relaxed lower back. Lumbar heat soothes and loosens tight lower-back muscles so the rollers can work out everyday tension.
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Tired feet, refreshed. Triple roller foot reflexology-style rollers that help tired feet relax finish every session from head to toe.
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Stress relief on demand. SoothMe nature soundscapes or your own music over Bluetooth turn the chair into a calming daily ritual for body and mind.
Key Features & Specifications
Massage Techniques
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Kneading — deep, circular pressure for tight muscles
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Tapping — rhythmic percussion for an invigorating feel that supports healthy circulation
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Knocking — firm, rapid strikes for deep tissue tension release
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Shiatsu — targeted pressure-point massage
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Sync — coordinated full-body massage sequencing
Core Product Features
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S-Track Massage Rail — follows the spine's natural curve for full-body coverage
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4-Node, Four-Wheel Massage Mechanism — precise targeting from neck to lower back
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Zero Gravity Recline — evenly distributes body weight and eases pressure on the spine for a weightless, restorative feel
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Decompression Stretch — full-body spinal stretch and elongation
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Spinal Stretch & Waist Twist — a gentle twist and stretch through the back
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Near-Flat Reclining S-Track (True Inversion) — maximizes stretch range
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Reflexology Foot Massage — Triple Roller Total Sole system for the feet and soles
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Lumbar Heat Therapy — soothes and loosens tight lower-back muscles
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Bluetooth® Speaker Technology — stream music directly through the chair
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SoothMe™ Sound Therapy — built-in nature soundscapes for relaxation
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Apple & Android App Functionality — full remote control from your smartphone
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Full Body Scanning — customizes massage intensity and positioning to your body
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Airbag Compression Therapy — targeted compression across arms, legs, and body
Infinity Care™ Warranty — Backed for the Long Run
Every Infinity IT-8500 Plus massage chair ships with the Infinity Care 5-Year U.S. Residential Limited Warranty, giving you confidence in your investment:
- Unlimited USA-based customer & technical support
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5-Year structural frame warranty (steel, steel-welded, and wood frame components)
- No-cost replacement parts for 3 years
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Complete Care coverage — no-cost covered parts and labor, including in-home service when necessary, for the first year
This limited warranty covers manufacturing defects only. Infinity Massage Chairs will arrange for covered repair parts to be shipped to your home, and for more complex repairs, an authorized service provider may be dispatched to your residence at no charge during the applicable warranty period, at Infinity's discretion. Simple, customer-installable parts are supported with phone-based technical guidance.
During the 3-year parts warranty, replacement parts are provided at no cost; the customer is responsible for shipping, duties, and brokerage fees. Field service is available in the United States and major Canadian metro areas, and requires pre-approval by an Infinity-authorized technician. Coverage applies within the U.S., D.C., Guam, Puerto Rico, and the U.S. Virgin Islands. This warranty is non-transferable and does not cover damage from misuse, unauthorized repair, commercial use, shipping damage, or normal wear (fading, foam softening, leather grain variation, etc.).
Extend Your Coverage
Want more peace of mind? Upgrade to an extended plan:
| Plan |
Labor |
Parts |
Frame |
Price |
| Infinity Care PLUS |
3 Years |
3 Years |
5 Years |
$399 |
| Infinity Care Max |
5 Years |
5 Years |
5 Years |
$599 |
To initiate a warranty claim, customers can call our Limited Warranty Service at 1-603-910-5000 with proof of purchase on hand. All repairs and replacements require advance authorization. Call us first at (855) 975-6272 and we'll handle your warranty claim with you.
Why Choose the Infinity IT-8500 Plus?
If you're searching for a massage chair with a full-back stretch, a zero gravity massage chair for a tired back, or simply a deep tissue massage chair with heat and Bluetooth, the IT-8500 Plus checks every box — therapeutic performance, smart connectivity, and a strong warranty program to protect your purchase for years to come.
Infinity IT-8500™ Plus Massage Chair — Frequently Asked Questions
| Question |
Answer |
| What is the Infinity IT-8500 Plus? |
The Infinity IT-8500 Plus is a deep tissue therapeutic massage chair built around a full-back stretch program, combining advanced massage engineering with a deep, full-length back stretch. |
| What massage techniques does it offer? |
It includes five massage techniques: Kneading, Tapping, Knocking, Shiatsu, and Sync (coordinated full-body sequencing). |
| What makes the stretch feature stand out? |
The chair combines a Decompression Stretch, Waist Twist Therapy, and a Near-Flat Reclining S-Track that achieves true inversion, following the body's natural S-curve for a full-length back stretch. |
| How does the massage mechanism work? |
It uses a 4-node, four-wheel S-Track massage mechanism that follows the spine's natural curve, delivering precise targeting from neck to lower back. |
| Does the chair include foot massage? |
Yes. It features a Triple Roller Total Sole reflexology foot massage system for the feet and soles. |
| Does it include heat therapy? |
Yes. Lumbar Heat Therapy is built in to soothe and loosen tight lower-back muscles. |
| What audio features are included? |
The chair includes Bluetooth speaker technology for streaming music, plus built-in SoothMe™ Sound Therapy nature soundscapes. |
| Can I control the chair from my phone? |
Yes. The Infinity mobile app (iOS & Android) offers full remote control of the chair's functions. |
| Does the chair adjust to my body automatically? |
Yes. Full Body Scanning customizes massage intensity and positioning based on your body shape and size. |
| Does it include compression therapy? |
Yes. Airbag Compression Therapy provides targeted compression across the arms, legs, and body. |
| What warranty comes standard with the IT-8500 Plus? |
Every chair ships with the Infinity Care 5-Year U.S. Residential Limited Warranty, including unlimited USA-based support, a 5-year structural frame warranty, no-cost replacement parts for 3 years, and full parts-and-labor coverage (including in-home service when needed) for the first year. |
| What does the standard warranty NOT cover? |
It covers manufacturing defects only and does not cover damage from misuse, unauthorized repair, commercial use, shipping damage, or normal wear such as fading, foam softening, or leather grain variation. |
| Can I extend the warranty? |
Yes. Infinity Care PLUS ($399) extends labor and parts coverage to 3 years with a 5-year frame warranty, and Infinity Care Max ($599) extends labor, parts, and frame coverage to 5 years each. |
| Is the warranty transferable? |
No, the warranty is non-transferable and applies only within the U.S., D.C., Guam, Puerto Rico, and the U.S. Virgin Islands (with field service also available in major Canadian metro areas). |
| How do I file a warranty claim? |
Customers can call Infinity's Limited Warranty Service at 1-603-910-5000 with proof of purchase; all repairs and replacements require advance authorization. Call us first at (855) 975-6272 and we'll handle your warranty claim with you. |
4-Node Back Massage
4-Node back massage rollers travel up and down the back.
True Inversion
The chair back reclines just beyond horizontal, reversing the gravitational force on your back to the point where gravity assists the stretch.
Near Flat Reclining S-Track
Near-flat reclining S-Track enables a deeper stretch.
Lumbar Heat
Heating modules located in the lower back of the chair provide a soothing sensation and loosen your muscles.
Triple Foot Roller Total Sole Reflexology
This feature covers the full sole of each foot, utilizing triple shiatsu rollers per foot for a thorough, soothing foot massage.
iOS & Android App
Operate the chair right from your Apple or Android device with a free download of its app-based functionality.
Premium Bluetooth Speakers
Use your phone or Bluetooth device to create your own world of relaxation.
SootheMe® Sound Therapy Programs
The sound menu is right on the remote to envelope yourself in sound scapes that are designed to help you relax.
Weightless Zero Gravity Recline
Inspired by NASA research, zero gravity positioning raises your feet above your heart and takes weight off your back.
Specifications
| Chair Weight |
Seat Depth |
Hip Width |
Shoulder Width |
Max User Weight |
Optimal User Height |
| 281.6 lbs. |
15" |
18" |
22" |
300 lbs. |
5' 0" - 6' 4"
|
36"
46"
36.00"
(Reclined)
59.00"
74.00" (Reclined)
