Skip to content
FREE SHIPPING ON ALL ORDERS + NO SALES TAX | EASY 0% APR FINANCING UP TO 12 MONTHS ->
FREE SHIPPING ON ALL ORDERS + NO SALES TAX | EASY 0% APR FINANCING UP TO 12 MONTHS ->
🎆 Summer Sale Live Now! Up To 50% Discounts

Osaki OP-4D Master Massage Chair – Muscle Detection, 4D Rollers, SL-Track, Shoulder Air Massage, Voice/App Control, 16 Auto Modes, Zero Gravity

Save 43% Save 43%
Original price $13,999.00
Original price $13,999.00 - Original price $13,999.00
Original price $13,999.00
Current price $7,999.00
$7,999.00 - $8,348.95
Current price $7,999.00

Free Shipping | Est. Delivery Time: 3-5 Days

Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped

✓ Authorized Dealer
✓ Proud Member of The North American Sauna Society
✓ No Sales Tax
✓ Lowest Price Guaranteed
✓ Lifetime Customer Support: +1 (651) 655 9077

Refund Policy

Returns & Refunds
30-day return policy. Return unused items in original condition for a full refund (excluding shipping). No restocking fees.

Defective Items
We accept returns for defective products—your satisfaction matters.

Exchanges
Not offered. Please review your order before checkout.

Return Shipping
You cover return shipping. Items must be unused and in resellable condition.

Refunds
Processed within 7 business days to your original payment method.

Not Returnable

  1. Used or altered items
  2. Assembled kits
  3. Damaged goods

Questions?
Contact our support team anytime.

Contact Us

Osaki Master 4D+ SL-Track Massage Chair

Intelligent Design. Deep Relief. Elevated Recovery.

Meet the Osaki Master 4D+ Massage Chair—where world-class wellness meets next-gen technology. Whether you're winding down after a long day, recovering from physical activity, or seeking full-body relaxation, this chair offers tailored therapy at the touch of a button—or even a voice command.

Equipped with advanced 4D massage rollers, innovative shoulder compression, and AI-driven muscle tension detection, the Master 4D+ is your personal wellness assistant. With app control, Alexa compatibility, negative ion therapy, and luxurious features from top to toe, it redefines in-home relaxation.

Perfect for those who value performance, comfort, and intelligent customization, this massage chair brings the future of wellness home.

Key Features

  • Thorough Shoulder Massage with airbag compression that mimics real hand motion using 10 individual airbags
  • Integrated Shoulder Massage Nodes to simulate kneading pressure on upper body tension points
  • Automatic Shoulder Adjustment using intelligent body scanning for height and width calibration
  • Muscle Tension Detection with AI to create personalized massage programs based on your torso’s stress zones
  • Voice Control compatibility through Alexa for seamless hands-free operation
  • App Control via the Osaki Premium 4D+ Master App for iOS and Android devices
  • Touchscreen Controller with swivel mount for easy viewing and command navigation
  • 4D+ Massage Mechanism offering 4 levels of depth and 5 adjustable levels of speed, strength, and intensity
  • Attachable Magnetic Pillow for improved shoulder massage effectiveness and added comfort
  • SL-Track Design made from laser-crafted steel, extending from neck and shoulders to hamstrings
  • Negative Oxygen Ion Therapy to relieve stress and promote mental clarity
  • Zero Gravity Reclining for a weightless position that enhances comfort and relaxation
  • Space-Saving Design that requires only 3 inches from the wall to fully recline
  • Lumbar and Foot Heating Zones to promote circulation and ease soreness
  • Extendable Footrest that elongates up to 8 inches to fit users of varying heights
  • Calf Massage with kneading rollers and air compression to relieve tight leg muscles
  • Specialized Foot Rollers with reflexology ridges that target acupuncture points from heel to toe
  • Side Control Panel for quick access to essential features
  • Phone Charging Surface to power devices during your massage
  • Bluetooth Surround Sound built into the headrest for an immersive audio experience
  • USB Charging Port to keep your devices charged and accessible
  • LED Mood Lighting to enhance ambiance and relaxation

16 Automatic Massage Programs

  • Master’s Choice
  • Health Pro
  • Signature
  • Sleeping
  • Stretching
  • Spine
  • Deep Tissue
  • Core
  • The Golfer
  • Pilates
  • Mobile Mode
  • Relax
  • Chinese
  • Sports
  • Morning
  • Evening

6 Manual Massage Modes

  • Kneading
  • Tapping I
  • Tapping II
  • Shiatsu I
  • Shiatsu II
  • Rolling

Customize each mode with your preferred region, intensity, speed, and width settings to create a truly personalized experience.

Key Features

  • Thorough Shoulder Massage with airbag compression that mimics real hand motion using 10 individual airbags
  • Integrated Shoulder Massage Nodes to simulate kneading pressure on upper body tension points
  • Automatic Shoulder Adjustment using intelligent body scanning for height and width calibration
  • Muscle Tension Detection with AI to create personalized massage programs based on your torso’s stress zones
  • Voice Control compatibility through Alexa for seamless hands-free operation
  • App Control via the Osaki Premium 4D+ Master App for iOS and Android devices
  • Touchscreen Controller with swivel mount for easy viewing and command navigation
  • 4D+ Massage Mechanism offering 4 levels of depth and 5 adjustable levels of speed, strength, and intensity
  • Attachable Magnetic Pillow for improved shoulder massage effectiveness and added comfort
  • SL-Track Design made from laser-crafted steel, extending from neck and shoulders to hamstrings
  • Negative Oxygen Ion Therapy to relieve stress and promote mental clarity
  • Zero Gravity Reclining for a weightless position that enhances comfort and relaxation
  • Space-Saving Design that requires only 3 inches from the wall to fully recline
  • Lumbar and Foot Heating Zones to promote circulation and ease soreness
  • Extendable Footrest that elongates up to 8 inches to fit users of varying heights
  • Calf Massage with kneading rollers and air compression to relieve tight leg muscles
  • Specialized Foot Rollers with reflexology ridges that target acupuncture points from heel to toe
  • Side Control Panel for quick access to essential features
  • Phone Charging Surface to power devices during your massage
  • Bluetooth Surround Sound built into the headrest for an immersive audio experience
  • USB Charging Port to keep your devices charged and accessible
  • LED Mood Lighting to enhance ambiance and relaxation

16 Automatic Massage Programs

  • Master’s Choice
  • Health Pro
  • Signature
  • Sleeping
  • Stretching
  • Spine
  • Deep Tissue
  • Core
  • The Golfer
  • Pilates
  • Mobile Mode
  • Relax
  • Chinese
  • Sports
  • Morning
  • Evening

6 Manual Massage Modes

  • Kneading
  • Tapping I
  • Tapping II
  • Shiatsu I
  • Shiatsu II
  • Rolling

Customize each mode with your preferred region, intensity, speed, and width settings to create a truly personalized experience.

Technical Specifications

  • Power Supply: 110 – 120V
  • Rated Frequency: 50 / 60Hz
  • Chair Dimensions (Upright): 31.5" W x 68.0" L x 50.5" H
  • Chair Dimensions (Reclined): 31.5" W x 72.0" L x 42.0" H
  • Chair Weight: 254.6 lb
  • Shoulder Width: 24.5"
  • Seat Width: 18.0"
  • Minimum Door Width (Assembled): 31.5"
  • Max User Weight Capacity: 260 lb

Package Dimensions & Weights

  • Box 1: 55.3" x 33.9" x 50.0" (249.1 lb)
  • Box 2: 23.4" x 20.3" x 22.4" (49.6 lb)

All massage chairs (excluding Open Box models) come with Standard Warranty, which covers 1 year of full service* followed by 2 years of parts.

If you purchased 1 year Extended Warranty, 2 years of full service followed by 2 years of parts will be covered.

If you purchased 2 year Extended Warranty, 3 years of full service followed by 2 years of parts will be covered.

*Full service covers the cost of both parts and labor.

What is NOT covered by warranty?

Any shipping expenses incurred. Transportation damage; theft; abuse; neglect; vandalism.

Damages incurred due to shipping and handling, dropped products, improper installation, and/or unauthorized repairs do not constitute a defect under warranty.

Modifications or altered conditions of the original product, improper use of electrical/power supplies, electrical disturbances and power surges.

Malfunctions due to improper use as well as unreasonable use or maintenance including failure to follow operating instructions.

Any environmental conditions (examples: fire, floods, rust, corrosion, sand, dirt, windstorms, hail, earthquakes, and/or tornadoes) or any other exposure to weather conditions.

Normal wear and tear including Velcro or zipper malfunction, or tears in any fabric covering by abuse. Failures or attached points in stitching, Velcro, and zippers do not constitute as a defect for warranty.

Softening/hardening of foams and filling composites in pillows and pads; Fading, wear, and pilling of fabrics do not constitute a defect under this warranty as those items naturally change with use.

Natural patterns and grains and variations in leather do not constitute as a defect under warranty, as no two pieces of fabric are identical.

Warranty shall not apply if the product has been damaged physically, whether intentionally or due accident or neglect: including stains, fluids, mold, water damage, animal damage, cuts, burns or is otherwise unsanitary, damaged or soiled.

Products used in commercial or corporate settings.

Products purchased from unauthorized dealers.

All warranties begin on the date of purchase. At our discretion, we will repair or replace any defective part within a reasonable time frame.

Free shipping on every chair.

All massage chairs ship via freight delivery. Transit times are typically 3–7 business days after processing.

Want help bringing it inside?
Ask about White-Glove Delivery — our pros will place it in your room of choice, set it up, and remove the packaging. Just request a quote before checkout.

Description

Osaki Master 4D+ SL-Track Massage Chair

Intelligent Design. Deep Relief. Elevated Recovery.

Meet the Osaki Master 4D+ Massage Chair—where world-class wellness meets next-gen technology. Whether you're winding down after a long day, recovering from physical activity, or seeking full-body relaxation, this chair offers tailored therapy at the touch of a button—or even a voice command.

Equipped with advanced 4D massage rollers, innovative shoulder compression, and AI-driven muscle tension detection, the Master 4D+ is your personal wellness assistant. With app control, Alexa compatibility, negative ion therapy, and luxurious features from top to toe, it redefines in-home relaxation.

Perfect for those who value performance, comfort, and intelligent customization, this massage chair brings the future of wellness home.

Key Features

  • Thorough Shoulder Massage with airbag compression that mimics real hand motion using 10 individual airbags
  • Integrated Shoulder Massage Nodes to simulate kneading pressure on upper body tension points
  • Automatic Shoulder Adjustment using intelligent body scanning for height and width calibration
  • Muscle Tension Detection with AI to create personalized massage programs based on your torso’s stress zones
  • Voice Control compatibility through Alexa for seamless hands-free operation
  • App Control via the Osaki Premium 4D+ Master App for iOS and Android devices
  • Touchscreen Controller with swivel mount for easy viewing and command navigation
  • 4D+ Massage Mechanism offering 4 levels of depth and 5 adjustable levels of speed, strength, and intensity
  • Attachable Magnetic Pillow for improved shoulder massage effectiveness and added comfort
  • SL-Track Design made from laser-crafted steel, extending from neck and shoulders to hamstrings
  • Negative Oxygen Ion Therapy to relieve stress and promote mental clarity
  • Zero Gravity Reclining for a weightless position that enhances comfort and relaxation
  • Space-Saving Design that requires only 3 inches from the wall to fully recline
  • Lumbar and Foot Heating Zones to promote circulation and ease soreness
  • Extendable Footrest that elongates up to 8 inches to fit users of varying heights
  • Calf Massage with kneading rollers and air compression to relieve tight leg muscles
  • Specialized Foot Rollers with reflexology ridges that target acupuncture points from heel to toe
  • Side Control Panel for quick access to essential features
  • Phone Charging Surface to power devices during your massage
  • Bluetooth Surround Sound built into the headrest for an immersive audio experience
  • USB Charging Port to keep your devices charged and accessible
  • LED Mood Lighting to enhance ambiance and relaxation

16 Automatic Massage Programs

  • Master’s Choice
  • Health Pro
  • Signature
  • Sleeping
  • Stretching
  • Spine
  • Deep Tissue
  • Core
  • The Golfer
  • Pilates
  • Mobile Mode
  • Relax
  • Chinese
  • Sports
  • Morning
  • Evening

6 Manual Massage Modes

  • Kneading
  • Tapping I
  • Tapping II
  • Shiatsu I
  • Shiatsu II
  • Rolling

Customize each mode with your preferred region, intensity, speed, and width settings to create a truly personalized experience.

Specifications +

Key Features

  • Thorough Shoulder Massage with airbag compression that mimics real hand motion using 10 individual airbags
  • Integrated Shoulder Massage Nodes to simulate kneading pressure on upper body tension points
  • Automatic Shoulder Adjustment using intelligent body scanning for height and width calibration
  • Muscle Tension Detection with AI to create personalized massage programs based on your torso’s stress zones
  • Voice Control compatibility through Alexa for seamless hands-free operation
  • App Control via the Osaki Premium 4D+ Master App for iOS and Android devices
  • Touchscreen Controller with swivel mount for easy viewing and command navigation
  • 4D+ Massage Mechanism offering 4 levels of depth and 5 adjustable levels of speed, strength, and intensity
  • Attachable Magnetic Pillow for improved shoulder massage effectiveness and added comfort
  • SL-Track Design made from laser-crafted steel, extending from neck and shoulders to hamstrings
  • Negative Oxygen Ion Therapy to relieve stress and promote mental clarity
  • Zero Gravity Reclining for a weightless position that enhances comfort and relaxation
  • Space-Saving Design that requires only 3 inches from the wall to fully recline
  • Lumbar and Foot Heating Zones to promote circulation and ease soreness
  • Extendable Footrest that elongates up to 8 inches to fit users of varying heights
  • Calf Massage with kneading rollers and air compression to relieve tight leg muscles
  • Specialized Foot Rollers with reflexology ridges that target acupuncture points from heel to toe
  • Side Control Panel for quick access to essential features
  • Phone Charging Surface to power devices during your massage
  • Bluetooth Surround Sound built into the headrest for an immersive audio experience
  • USB Charging Port to keep your devices charged and accessible
  • LED Mood Lighting to enhance ambiance and relaxation

16 Automatic Massage Programs

  • Master’s Choice
  • Health Pro
  • Signature
  • Sleeping
  • Stretching
  • Spine
  • Deep Tissue
  • Core
  • The Golfer
  • Pilates
  • Mobile Mode
  • Relax
  • Chinese
  • Sports
  • Morning
  • Evening

6 Manual Massage Modes

  • Kneading
  • Tapping I
  • Tapping II
  • Shiatsu I
  • Shiatsu II
  • Rolling

Customize each mode with your preferred region, intensity, speed, and width settings to create a truly personalized experience.

Dimensions +

Technical Specifications

  • Power Supply: 110 – 120V
  • Rated Frequency: 50 / 60Hz
  • Chair Dimensions (Upright): 31.5" W x 68.0" L x 50.5" H
  • Chair Dimensions (Reclined): 31.5" W x 72.0" L x 42.0" H
  • Chair Weight: 254.6 lb
  • Shoulder Width: 24.5"
  • Seat Width: 18.0"
  • Minimum Door Width (Assembled): 31.5"
  • Max User Weight Capacity: 260 lb

Package Dimensions & Weights

  • Box 1: 55.3" x 33.9" x 50.0" (249.1 lb)
  • Box 2: 23.4" x 20.3" x 22.4" (49.6 lb)
Warranty +

All massage chairs (excluding Open Box models) come with Standard Warranty, which covers 1 year of full service* followed by 2 years of parts.

If you purchased 1 year Extended Warranty, 2 years of full service followed by 2 years of parts will be covered.

If you purchased 2 year Extended Warranty, 3 years of full service followed by 2 years of parts will be covered.

*Full service covers the cost of both parts and labor.

What is NOT covered by warranty?

Any shipping expenses incurred. Transportation damage; theft; abuse; neglect; vandalism.

Damages incurred due to shipping and handling, dropped products, improper installation, and/or unauthorized repairs do not constitute a defect under warranty.

Modifications or altered conditions of the original product, improper use of electrical/power supplies, electrical disturbances and power surges.

Malfunctions due to improper use as well as unreasonable use or maintenance including failure to follow operating instructions.

Any environmental conditions (examples: fire, floods, rust, corrosion, sand, dirt, windstorms, hail, earthquakes, and/or tornadoes) or any other exposure to weather conditions.

Normal wear and tear including Velcro or zipper malfunction, or tears in any fabric covering by abuse. Failures or attached points in stitching, Velcro, and zippers do not constitute as a defect for warranty.

Softening/hardening of foams and filling composites in pillows and pads; Fading, wear, and pilling of fabrics do not constitute a defect under this warranty as those items naturally change with use.

Natural patterns and grains and variations in leather do not constitute as a defect under warranty, as no two pieces of fabric are identical.

Warranty shall not apply if the product has been damaged physically, whether intentionally or due accident or neglect: including stains, fluids, mold, water damage, animal damage, cuts, burns or is otherwise unsanitary, damaged or soiled.

Products used in commercial or corporate settings.

Products purchased from unauthorized dealers.

All warranties begin on the date of purchase. At our discretion, we will repair or replace any defective part within a reasonable time frame.

Product Manuals +
Shipping +

Free shipping on every chair.

All massage chairs ship via freight delivery. Transit times are typically 3–7 business days after processing.

Want help bringing it inside?
Ask about White-Glove Delivery — our pros will place it in your room of choice, set it up, and remove the packaging. Just request a quote before checkout.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare