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Osaki OP-4D Master Facts: 166 Specifications & 101 Highlights

Think it’s just hype? These 166 specs — including general information, dimensions & weight, design & materials & massage mechanism — might change your mind about the Osaki OP-4D Master.

Supermod

Putri N

287 Products

Moderator

Rizki P. W.

545 Products

23 Points

Osaki

Osaki OP-4D Master

Highlights ¹⁰¹

No extras. Just what matters.

                                
                                                    23
                                                
                                                    Points
                                                
                                        Osaki OP-4D Master

Why is Osaki OP-4D Master better than other massage chairs ?

General Information Dimensions & Weight Design & Materials Massage Mechanism Massage Programs & Modes Adjustability & Positions Air & Heat Therapy Vibration Features Foot & Calf Massage Controls & Interface Connectivity & Integration Comfort & Ergonomics Safety & Protection Power & Performance Maintenance & Durability Package & Installation Brand Support & Service

General Information

Product Type: Full Body Defines the general classification of the massage chair based on its design and coverage area.
Made In China Indicates where the chair was manufactured or assembled.
Series: Master 4D Identifies the marketing series or product line to which the model belongs.
Model Number: OP‑4D Master The manufacturer’s reference code for identification or warranty registration.
Released In 2023 The year the chair was first released, showing product recency.
Intended User Height Range: 5'0-6'3 ft Indicates the supported height range for optimal massage coverage.

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Dimensions & Weight

7.48 inch deeper seat The front-to-back measurement when the chair is in a standard position. 68.0 inch vs 60.5 inch
3.77 inch taller frame The full height from base to top when upright. 50.5 inch vs 46.7 inch
14.37 lbs lighter weight The total weight of the massage chair without packaging. 254.6 lbs vs 269.0 lbs
0.65 inch more compact when folded The width of the chair when folded or reclined for storage. 31.5 inch vs 32.2 inch

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Design & Materials

Leg Rest Type: Extendable Describes how the leg rest operates or adjusts.
Available In Black, Brown, Taupe Colors Available upholstery colors for customization.
Recline Type: Zero Gravity Specifies how the chair reclines and the mechanism involved.
Frame Material: Steel The primary structural material that supports the chair.
Upholstery Material: Synthetic Leather The material covering the chair surface, affecting feel and maintenance.
Cushion Type: High-Density Foam The internal filling used for comfort and support.
Seat Shape: Contoured The contour style of the seat that affects posture and comfort.
Armrest Type: Fixed,Padded Defines the configuration and comfort level of the armrests.
Base Type: Fixed Indicates the design and movement capability of the base.
Headrest Type: Padded Defines the adjustability and comfort of the headrest.

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Massage Mechanism

Provides Kneading Function Determines whether circular kneading motions are supported.
Provides Rolling Function States whether continuous roller motion along the back is supported.
Massage Roller Type: 4D The roller system type defining range and depth control.
Roller Track Type: SL-Track The path shape that the rollers follow along the body.
Airbag Placement Zones: Shoulders, Arms, Calves, Feet, Hips Identifies where airbags are located.
Supports Dual Action Massage Indicates if the chair can combine two massage types at once.
Massage Type: Shiatsu,Kneading,Tapping,Rolling,Deep Tissue Defines the massage styles available in the chair.
3.4 inch longer massage track The total distance the rollers travel across the user’s body. 53.3 inch vs 49.9 inch
Features 46 Airbags The total number of airbags used for compression and squeezing massage.
Compression Type: Air The system used to create compression pressure.
Provides Shiatsu Function Indicates if the chair includes shiatsu-style deep pressure massage.
Offers Tapping Function Checks for rhythmic tapping action for muscle stimulation.
Roller Material: Plastic The material composition of massage rollers.
Equipped With 4 Massage Nodes The total count of individual massage nodes operating within the chair.

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Massage Programs & Modes

Includes Body Scan Function Detects body shape and adjusts roller or airbag placement automatically.
Partial Massage Option Available Enables massage to be concentrated on a small section of the body.
Supports Full Body Mode Performs an automated routine that covers the entire body.
Includes Quick Massage Mode A fast, time-efficient massage setting.
Includes Sleep Mode Provides a slow, relaxing pattern for pre-sleep comfort.
AI Adaptive Massage: :val Adjusts massage intensity and pattern based on user tension or response.
Massage Focus Modes: Neck, Shoulders, Back, Hips, Legs Predefined focus areas for targeted massage routines.
Offers 16 Auto Programs The total number of built-in automatic massage routines.
Zone Selection Available Allows users to focus massage on specific body areas.
Features Stretching Mode Mimics body-stretching movements to relieve tension.
Provides Recovery Mode Focused on post-exercise or fatigue recovery.
Supports Manual Control Mode Allows full user control over individual massage parameters.
Offers Up To 5 Speed Settings The number of selectable massage speed levels.
Adjustable Intensity With 7 Levels Defines how many intensity adjustments are available for rollers or airbags.

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Adjustability & Positions

Adjustable Seat Angle Allows the seat pan angle to be customized for posture support.
Backrest Speed Control Available Allows control over how quickly the backrest moves between angles.
Legrest Adjustment Range: Extendable The total extension range of the legrest.
Adjustable Height Allows height alignment for different user sizes.
Includes 1 Zero-Gravity Modes The number of preset zero-gravity postures that reduce spinal pressure.
Reclines Up To up to 165 The maximum angle range through which the chair can recline.
Adjustable Shoulder Width Lets users modify the roller track width for shoulder fit.
Adjustable Lumbar Zone Enables fine-tuning of lumbar pressure or depth.
Offers TV,Reading,Nap,Zero Gravity Preset Comfort Modes Predefined recline configurations for convenience.

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Air & Heat Therapy

Features Heat Therapy Function Indicates whether the chair provides heat-based muscle relaxation.
Heated Zones: Back,Foot Body areas equipped with heating elements.
Up To 5 Adjustable Air Intensity Levels Number of adjustable intensity levels for air compression.
Airbag Material: PU Leather Material used for the airbags, affecting comfort and durability.
Heating Type: Infrared Technology used for heating elements.
Heating Temperature Range: 95‑110°F Adjustable temperature range for heating zones.
Features Automatic Temperature Regulation Automatically adjusts heating or cooling based on user’s temperature.
Includes Safety Temperature Cutoff Shuts off heat automatically when temperature exceeds safe limits.

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Vibration Features

Target Areas: Upper Back,Lower Back,Seat,Legs,Feet Specific areas vibration can target for localized relief.

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Foot & Calf Massage

Includes Calf Massage Function Specifies if the chair includes calf compression or roller massage.
Features Reflexology Function Uses roller nodes or points to stimulate reflex zones in the feet.
Offers Toe Massage Function Provides focused massage around the toes for targeted relief.
Provides Foot Massage Function Indicates whether the chair provides dedicated foot massage capability.
Provides Sole Heating Function Provides heat to the soles of the feet to enhance relaxation.

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Controls & Interface

Supports Voice Control Function Allows users to control chair functions using voice commands.
Features On-Chair Controls Physical controls located directly on the chair for easy access.
Features Touchscreen Interface Indicates if the control interface includes a touchscreen.
Includes Remote Control States whether a remote control is provided with the chair.
Supports App Control Allows control through a smartphone app.
Control Panel Illumination Available Indicates if control buttons or panels are backlit for visibility in low light.

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Connectivity & Integration

USB Charging Port Available Determines if the chair includes one or more USB ports for device charging.
Supports Bluetooth Connectivity Indicates whether the chair supports Bluetooth pairing for audio or app functions.
Compatible with Smart Home Integration Determines compatibility with smart assistants like Alexa or Google Home.
Provides Wireless Charging Pad States if the chair features a built-in wireless charging pad for smartphones.

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Comfort & Ergonomics

Comes with Ergonomic Design Indicates whether the chair follows an ergonomic structure for posture support.
Contoured Backrest States whether the backrest has a contoured shape for spine alignment.
Provides Side Cushion Support Shows whether side cushions provide extra lateral stability and comfort.
Includes Head Pillow Indicates if a head pillow is provided for neck comfort.
3.46 inch thicker cushioning Measures the thickness of the main seat cushion for comfort level. 8.0 inch vs 4.5 inch
Adjustable Head Pillow Specifies whether the head pillow can be repositioned or adjusted.

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Safety & Protection

Provides Overheat Protection Prevents damage or fire by automatically shutting off if components overheat.
Includes Power Surge Protection Shields the chair’s electrical system from voltage spikes.
Includes Overload Protection Detects and limits excessive electrical or mechanical load.
Made with Flame Retardant Materials Indicates if chair materials resist ignition or burning.

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Power & Performance

83.6 Watt stronger motor power Power rating of each motor or the total motor output. 250.0 Watt vs 166.4 Watt
7.52 dB quieter operation The sound level produced during normal operation. 45.0 dB vs 52.5 dB
0.33 ft longer power cord The total length of the power cable for flexible placement. 8.0 ft vs 7.7 ft

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Maintenance & Durability

Replaceable Components Specifies if key parts (rollers, cushions, etc.) can be replaced when worn.
Spare Parts Available Indicates if spare parts are readily available for maintenance.

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Package & Installation

2.17 inch smaller package height The total height of the package as shipped. 50.0 inch vs 47.8 inch
15.2 inch smaller package width The total width of the chair package for delivery. 55.3 inch vs 40.1 inch
Includes User Manual States if a printed or digital user manual is included in the package.

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Brand Support & Service

Extended Warranty Option Available Indicates if users can purchase additional warranty coverage.
Accessories Available States if compatible accessories are available from the manufacturer.

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Quick Take

The essentials that matter—nothing extra

A fast snapshot of the Osaki OP-4D Master, covering its standout specification and what you can expect right out of the box.

Osaki OP-4D Master

The Osaki OP-4D Master is a cutting-edge massage chair featuring AI-driven 4D technology and a long SL-Track. It offers a proprietary over-the-shoulder massage, muscle tension detection, and 16 auto programs. With Zero Gravity reclining, space-saving design, and voice control, it provides a fully personalized, professional-grade home wellness experience.

Specifications & Facts ¹⁶⁶

Specs measured. Drama avoided.

Buying for your health? Don’t skip the deep dive. The Osaki OP-4D Master specs and features reveal more than you’d guess at first glance.

General Information ⁷

Osaki OP-4D Master Product Type

What type of massage chair is this?

78 Osaki OP-4D Master 0 Votes Full Body

24 Massage Chairs in this range Full Body

Defines the general classification of the massage chair based on its design and coverage area.

Osaki OP-4D Master Country of Origin

Where was the chair made?

58 Osaki OP-4D Master 0 Votes China

20 Massage Chairs in this range China

Indicates where the chair was manufactured or assembled.

Osaki OP-4D Master User Weight Capacity

What is the maximum user weight capacity?

260 lbs 0 Votes

287.63 lbs (Average)

The maximum user weight supported by the chair structure.

Osaki OP-4D Master Series

What is the chair’s series or model line?

75 Osaki OP-4D Master 0 Votes Master 4D

22 Massage Chairs in this range OS‑Pro

Identifies the marketing series or product line to which the model belongs.

Osaki OP-4D Master Model Number

What is the model number?

75 Osaki OP-4D Master 0 Votes OP‑4D Master

26 Massage Chairs in this range MR360

The manufacturer’s reference code for identification or warranty registration.

Osaki OP-4D Master Release Year

What is the release year?

78 Osaki OP-4D Master 0 Votes 2023

24 Massage Chairs in this range 2024

The year the chair was first released, showing product recency.

Osaki OP-4D Master Intended User Height Range

What is the supported user height range?

77 Osaki OP-4D Master 0 Votes 5'0-6'3 ft

22 Massage Chairs in this range 5'0-6'2 ft

Indicates the supported height range for optimal massage coverage.

Dimensions & Weight ¹²

Osaki OP-4D Master Width

What is the chair’s width?

31.5 inch 0 Votes

33.21 inch (Average)

The total side-to-side measurement of the chair in an upright position.

Osaki OP-4D Master Depth

What is the chair’s depth?

68 inch 0 Votes

60.52 inch (Average)

The front-to-back measurement when the chair is in a standard position.

Osaki OP-4D Master Height

What is the chair’s height?

50.5 inch 0 Votes

46.73 inch (Average)

The full height from base to top when upright.

Osaki OP-4D Master Seat Width

What is the seat width?

18 inch 0 Votes

20.82 inch (Average)

The width of the seat area where the user sits.

Osaki OP-4D Master Net Weight

What is the chair’s net weight?

254.6 lbs 0 Votes

268.97 lbs (Average)

The total weight of the massage chair without packaging.

Osaki OP-4D Master Seat Depth

What is the seat depth?

18 inch 0 Votes

19.51 inch (Average)

The measurement from seat front to backrest.

Osaki OP-4D Master Seat Height

What is the seat height?

18 inch 0 Votes

19.74 inch (Average)

The vertical distance from floor to seat surface.

Osaki OP-4D Master Backrest Height

What is the backrest height?

32 inch 0 Votes

33.89 inch (Average)

The total height of the backrest section.

Osaki OP-4D Master Armrest Height

What is the armrest height?

24.5 inch 0 Votes

24.53 inch (Average)

The distance from floor to top of the armrest.

Osaki OP-4D Master Folded Width

What is the folded width?

31.5 inch 0 Votes

32.15 inch (Average)

The width of the chair when folded or reclined for storage.

Osaki OP-4D Master Folded Depth

What is the folded depth?

68 inch 0 Votes

52.59 inch (Average)

The depth of the chair when folded or reclined.

Osaki OP-4D Master Folded Height

What is the folded height?

50.5 inch 0 Votes

47.22 inch (Average)

The height of the chair in a folded position.

Design & Materials ¹¹

Osaki OP-4D Master Leg Rest Type

What type of leg rest is used?

98 Osaki OP-4D Master 0 Votes Extendable

31 Massage Chairs in this range Extendable

Osaki OP-4D Master

The Leg Rest Type is Extendable, providing adjustable support for users of different heights.

Describes how the leg rest operates or adjusts.

Osaki OP-4D Master Color Options

What color options are available?

76 Osaki OP-4D Master 0 Votes Black, Brown, Taupe

24 Massage Chairs in this range Black,Brown

Available upholstery colors for customization.

Osaki OP-4D Master Recline Type

What recline type does it have?

48 Osaki OP-4D Master 0 Votes Zero Gravity

16 Massage Chairs in this range Zero Gravity

Specifies how the chair reclines and the mechanism involved.

Osaki OP-4D Master Frame Material

What material is used for the frame?

88 Osaki OP-4D Master 0 Votes Steel

27 Massage Chairs in this range Steel

The primary structural material that supports the chair.

Osaki OP-4D Master Upholstery Material

What is the upholstery material?

58 Osaki OP-4D Master 0 Votes Synthetic Leather

19 Massage Chairs in this range PU Leather

The material covering the chair surface, affecting feel and maintenance.

Osaki OP-4D Master Cushion Type

What type of cushion is used?

58 Osaki OP-4D Master 0 Votes High-Density Foam

19 Massage Chairs in this range High-Density Foam

The internal filling used for comfort and support.

Osaki OP-4D Master Seat Shape

What is the seat shape?

68 Osaki OP-4D Master 0 Votes Contoured

30 Massage Chairs in this range Ergonomic

The contour style of the seat that affects posture and comfort.

Osaki OP-4D Master Armrest Type

What type of armrests does the chair have?

38 Osaki OP-4D Master 0 Votes Fixed,Padded

18 Massage Chairs in this range Padded

Defines the configuration and comfort level of the armrests.

Osaki OP-4D Master Base Type

What is the chair’s base type?

18 Osaki OP-4D Master 0 Votes Fixed

7 Massage Chairs in this range Fixed

Indicates the design and movement capability of the base.

Osaki OP-4D Master Headrest Type

What is the headrest type?

48 Osaki OP-4D Master 0 Votes Padded

24 Massage Chairs in this range Padded

Defines the adjustability and comfort of the headrest.

Osaki OP-4D Master Cover Removability

Are the covers removable?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Indicates whether the outer covers can be removed for cleaning or replacement.

Massage Mechanism ¹⁵

Osaki OP-4D Master Kneading Function

Does it provide kneading massage?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

The kneading function provides a soothing experience by mimicking traditional massage techniques.

Determines whether circular kneading motions are supported.

Osaki OP-4D Master Rolling Function

Does it provide rolling massage?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

The chair has a Rolling Function that enhances the massage experience by incorporating rolling motions.

States whether continuous roller motion along the back is supported.

Osaki OP-4D Master Massage Roller Type

What roller type does it use?

73 Osaki OP-4D Master 0 Votes 4D

22 Massage Chairs in this range 4D

The roller system type defining range and depth control.

Osaki OP-4D Master Roller Track Type

What is the roller track type?

38 Osaki OP-4D Master 0 Votes SL-Track

10 Massage Chairs in this range SL-Track

The path shape that the rollers follow along the body.

Osaki OP-4D Master Airbag Placement Zones

Where are the airbags placed?

63 Osaki OP-4D Master 0 Votes Shoulders, Arms, Calves, Feet, Hips

20 Massage Chairs in this range Shoulders, Arms, Calves, Feet, Hips

Identifies where airbags are located.

Osaki OP-4D Master Dual Action Massage

Can it perform dual-action massage?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Indicates if the chair can combine two massage types at once.

Osaki OP-4D Master Massage Type

What massage types are supported?

78 Osaki OP-4D Master 0 Votes Shiatsu, Kneading, Tapping, Rolling, Deep Tissue

25 Massage Chairs in this range Shiatsu, Kneading, Tapping, Rolling, Deep Tissue

Defines the massage styles available in the chair.

Osaki OP-4D Master Track Length

What is the roller track length?

53.3 inch 0 Votes

49.9 inch (Average)

The total distance the rollers travel across the user’s body.

Osaki OP-4D Master Airbag Count

How many airbags does it have?

44 Osaki OP-4D Master 0 Votes 46

14 Massage Chairs in this range 32

The total number of airbags used for compression and squeezing massage.

Osaki OP-4D Master Compression Type

What compression system does it use?

68 Osaki OP-4D Master 0 Votes Air

22 Massage Chairs in this range Air

The system used to create compression pressure.

Osaki OP-4D Master Shiatsu Function

Does it have Shiatsu massage?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Indicates if the chair includes shiatsu-style deep pressure massage.

Osaki OP-4D Master Tapping Function

Does it have a tapping massage?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Checks for rhythmic tapping action for muscle stimulation.

Osaki OP-4D Master Roller Material

What material are the rollers made from?

58 Osaki OP-4D Master 0 Votes Plastic

26 Massage Chairs in this range Silicone

The material composition of massage rollers.

Osaki OP-4D Master Roller Size

What is the roller size?

4.13 inch 0 Votes

13.18 inch (Average)

The approximate diameter of the massage rollers.

Osaki OP-4D Master Number of Massage Nodes

How many massage nodes are there?

18 Osaki OP-4D Master 0 Votes 4

10 Massage Chairs in this range 4

AI Adaptive Massage uses technology to adjust the massage based on user preferences and body type.

Adjusts massage intensity and pattern based on user tension or response.

Osaki OP-4D Master Massage Focus Modes

Which focus modes are available?

38 Osaki OP-4D Master 0 Votes Neck, Shoulders, Back, Hips, Legs

12 Massage Chairs in this range Neck, Shoulders, Back, Hips, Legs

Predefined focus areas for targeted massage routines.

Osaki OP-4D Master Auto Programs Count

How many automatic massage programs are available?

55 Osaki OP-4D Master 0 Votes 16

14 Massage Chairs in this range 12

The total number of built-in automatic massage routines.

Osaki OP-4D Master Custom Program Memory

Can it store custom massage programs?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Indicates if users can save their own massage settings.

Osaki OP-4D Master Zone Selection

Can you select massage zones manually?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Allows users to focus massage on specific body areas.

Osaki OP-4D Master Stretching Mode

Does it have a stretching mode?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Mimics body-stretching movements to relieve tension.

Osaki OP-4D Master Recovery Mode

Is there a recovery mode available?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Focused on post-exercise or fatigue recovery.

Osaki OP-4D Master Manual Control Mode

Can you manually control massage settings?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Allows full user control over individual massage parameters.

Osaki OP-4D Master Speed Levels

How many speed levels are available?

43 Osaki OP-4D Master 0 Votes 5

13 Massage Chairs in this range 5

The number of selectable massage speed levels.

Osaki OP-4D Master Intensity Levels

How many intensity levels can you choose?

68 Osaki OP-4D Master 0 Votes 7

16 Massage Chairs in this range 5

Defines how many intensity adjustments are available for rollers or airbags.

Adjustability & Positions ¹⁵

Osaki OP-4D Master Seat Angle Adjustment

Can the seat angle be adjusted?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

The chair features a Shoulder Width Adjustment for personalized comfort.

Allows the seat pan angle to be customized for posture support.

Osaki OP-4D Master Backrest Speed Control

Can you control the backrest speed?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

The chair includes Backrest Speed Control, allowing users to customize the speed of the massage.

Allows control over how quickly the backrest moves between angles.

Osaki OP-4D Master Legrest Adjustment Range

What is the legrest adjustment range?

69 Osaki OP-4D Master 0 Votes Extendable

22 Massage Chairs in this range 6

The total extension range of the legrest.

Osaki OP-4D Master Height Adjustment

Does it support height adjustment?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Allows height alignment for different user sizes.

Osaki OP-4D Master Zero Gravity Positions Count

How many zero-gravity positions are supported?

31 Osaki OP-4D Master 0 Votes 1

19 Massage Chairs in this range 2

The number of preset zero-gravity postures that reduce spinal pressure.

Osaki OP-4D Master Footrest Extension Length

What is the footrest extension length?

8 inch 0 Votes

9.05 inch (Average)

How far the footrest can extend to fit taller users.

Osaki OP-4D Master Recline Range

What is the recline range in degrees?

79 Osaki OP-4D Master 0 Votes up to 165

21 Massage Chairs in this range 115-160 degree

The maximum angle range through which the chair can recline.

Osaki OP-4D Master Shoulder Width Adjustment

Can the shoulder width be adjusted?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Lets users modify the roller track width for shoulder fit.

Osaki OP-4D Master Armrest Adjustment

Can the armrests be adjusted?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Permits armrest repositioning for ergonomic alignment.

Osaki OP-4D Master Neck Position Adjustment

Can the neck position be adjusted?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Adjusts neck support height or angle for better relaxation.

Osaki OP-4D Master Lumbar Support Adjustment

Does it support lumbar adjustment?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Enables fine-tuning of lumbar pressure or depth.

Osaki OP-4D Master Automatic Position Memory

Does it have automatic position memory?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Remembers user’s favorite positions for one-touch setup.

Osaki OP-4D Master Preset Position Modes

What preset position modes are available?

72 Osaki OP-4D Master 0 Votes TV, Reading, Nap, Zero Gravity

24 Massage Chairs in this range TV, Reading, Nap, Zero Gravity

Predefined recline configurations for convenience.

Osaki OP-4D Master Manual Recline Option

Can it recline manually?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Option to recline manually without power assistance.

Osaki OP-4D Master Position Lock Function

Does it have a position lock function?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Locks the current recline position for safety and stability.

Air & Heat Therapy ¹⁰

Osaki OP-4D Master Heat Therapy Function

Does the chair include a heat therapy function?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

Heat Therapy Function provides warmth to enhance relaxation and alleviate muscle tension.

Indicates whether the chair provides heat-based muscle relaxation.

Osaki OP-4D Master Heated Zones

Which body zones are heated?

73 Osaki OP-4D Master 0 Votes Back, Foot

23 Massage Chairs in this range Back

Body areas equipped with heating elements.

Osaki OP-4D Master Air Compression Intensity Levels

How many air compression intensity levels are available?

68 Osaki OP-4D Master 0 Votes 5

18 Massage Chairs in this range 3

Number of adjustable intensity levels for air compression.

Osaki OP-4D Master Airbag Material

What material are the airbags made of?

78 Osaki OP-4D Master 0 Votes PU Leather

26 Massage Chairs in this range PU Leather

Material used for the airbags, affecting comfort and durability.

Osaki OP-4D Master Heating Type

What type of heating technology is used?

78 Osaki OP-4D Master 0 Votes Infrared

25 Massage Chairs in this range Infrared

Technology used for heating elements.

Osaki OP-4D Master Heating Temperature Range

What is the heating temperature range?

63 Osaki OP-4D Master 0 Votes 95‑110°F

22 Massage Chairs in this range 104-122°F

Adjustable temperature range for heating zones.

Osaki OP-4D Master Heating Duration Setting

What is the heating duration setting?

15 min 0 Votes

27.95 min (Average)

Duration setting for how long heat therapy runs.

Osaki OP-4D Master Automatic Temperature Regulation

Does it have automatic temperature regulation?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Automatically adjusts heating or cooling based on user’s temperature.

Osaki OP-4D Master Cooling Function

Does it include a cooling function?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Provides cooling air or temperature control for user comfort.

Osaki OP-4D Master Safety Temperature Cutoff

Does it include a safety temperature cutoff?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Shuts off heat automatically when temperature exceeds safe limits.

Vibration Features ⁴

Osaki OP-4D Master Vibration Function

Does the chair have vibration functionality?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Indicates whether the chair includes vibration massage capability.

Osaki OP-4D Master Target Areas

What are the vibration target areas?

42 Osaki OP-4D Master 0 Votes Upper Back, Lower Back, Seat, Legs, Feet

13 Massage Chairs in this range Upper Back, Lower Back, Seat, Legs, Feet

Specific areas vibration can target for localized relief.

Osaki OP-4D Master Synchronization with Massage

Can vibration synchronize with massage modes?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Allows vibration to synchronize with other massage functions.

Osaki OP-4D Master Independent Vibration Control

Can vibration be controlled independently?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

The chair features a Toe Massage Function, enhancing relaxation by focusing on the feet during a massage.

Provides focused massage around the toes for targeted relief.

Osaki OP-4D Master Foot Massage Function

Does the chair include a foot massage function?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Indicates whether the chair provides dedicated foot massage capability.

Osaki OP-4D Master Foot Roller Type

What type of foot rollers does it use?

0 Osaki OP-4D Master 0 Votes Triple

0 Massage Chairs in this range Dual

Design of the foot rollers affecting massage depth and feel.

Osaki OP-4D Master Calf Airbag Count

How many calf airbags are included?

0 Osaki OP-4D Master 0 Votes 10

0 Massage Chairs in this range 4

Number of airbags providing compression to the calves.

Osaki OP-4D Master Sole Heating Function

Does the chair offer sole heating?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Provides heat to the soles of the feet to enhance relaxation.

Osaki OP-4D Master Ankle Rotation Function

Does the chair support ankle rotation massage?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Rotational mechanism for ankle flexibility and joint relief.

Osaki OP-4D Master Removable Foot Covers

Are the foot covers removable?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

The inclusion of a Touchscreen Interface simplifies the control of various features and settings.

Indicates if the control interface includes a touchscreen.

Osaki OP-4D Master Control Type

What type of control does the chair use?

0 Osaki OP-4D Master 0 Votes Remote

0 Massage Chairs in this range Remote

The main interface used to operate the massage chair.

Osaki OP-4D Master Control Panel Location

Where is the control panel located?

0 Osaki OP-4D Master 0 Votes Armrest

0 Massage Chairs in this range Armrest

Where the built-in control panel is positioned on the chair.

Osaki OP-4D Master Remote Control

Is a remote control included?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

States whether a remote control is provided with the chair.

Osaki OP-4D Master App Control

Can it be controlled via mobile app?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Allows control through a smartphone app.

Osaki OP-4D Master Control Panel Illumination

Is the control panel illuminated?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Indicates if control buttons or panels are backlit for visibility in low light.

Osaki OP-4D Master Remote Type

What type of remote does it use?

0 Osaki OP-4D Master 0 Votes Wireless

0 Massage Chairs in this range Wireless

Defines whether the remote is connected physically or wirelessly.

Osaki OP-4D Master Remote Display Type

What display type does the remote use?

0 Osaki OP-4D Master 0 Votes Touchscreen

0 Massage Chairs in this range LCD

Type of display used on the remote control.

Osaki OP-4D Master App Name

What is the name of the control app?

0 Osaki OP-4D Master 0 Votes Osaki Premium Master App

0 Massage Chairs in this range Not Specified

The official app used for remote operation.

Osaki OP-4D Master Favorite Presets

How many favorite presets can be saved?

0 Osaki OP-4D Master 0 Votes yes

0 Massage Chairs in this range yes

Number of user-defined or memory-stored massage programs.

Osaki OP-4D Master Child Lock

Does it include a child lock feature?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Prevents accidental operation by locking all functions.

Connectivity & Integration ⁹

Osaki OP-4D Master USB Charging Port

Does it have a USB charging port?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

The USB Charging Port provides convenience for charging devices while using the massage chair.

Determines if the chair includes one or more USB ports for device charging.

Osaki OP-4D Master Mobile App Compatibility

Which mobile platforms are compatible?

0 Osaki OP-4D Master 0 Votes Both

0 Massage Chairs in this range Both

Platforms that the massage chair’s mobile app supports.

Osaki OP-4D Master Bluetooth Connectivity

Does the chair support Bluetooth connectivity?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Indicates whether the chair supports Bluetooth pairing for audio or app functions.

Osaki OP-4D Master Smart Home Integration

Is the chair compatible with smart home systems?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Determines compatibility with smart assistants like Alexa or Google Home.

Osaki OP-4D Master Firmware Upgradable

Is the firmware upgradable?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Indicates whether the chair’s software can be updated for improved features.

Osaki OP-4D Master Wireless Charging Pad

Is there a wireless charging pad?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

States if the chair features a built-in wireless charging pad for smartphones.

Osaki OP-4D Master Audio Speaker Type

What type of audio speakers are built in?

0 Osaki OP-4D Master 0 Votes Surround

0 Massage Chairs in this range Stereo

The type of speakers integrated into the chair.

Osaki OP-4D Master Speaker Power Output

What is the speaker power output?

10 Watt 0 Votes

12.41 Watt (Average)

Indicates the power rating of the built-in audio speakers.

Osaki OP-4D Master Headphone Jack

Does it include a headphone jack?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

The Head Pillow is adjustable, allowing users to find their optimal comfort level.

Indicates if a head pillow is provided for neck comfort.

Osaki OP-4D Master Cushion Firmness Level

What is the cushion firmness level?

0 Osaki OP-4D Master 0 Votes Medium

0 Massage Chairs in this range Medium

Describes the firmness level of the seat and back cushions.

Osaki OP-4D Master Seat Cushion Thickness

What is the seat cushion thickness?

8 inch 0 Votes

4.54 inch (Average)

Measures the thickness of the main seat cushion for comfort level.

Osaki OP-4D Master Lumbar Cushion Type

What type of lumbar cushion does it have?

0 Osaki OP-4D Master 0 Votes Adjustable

0 Massage Chairs in this range Adjustable

Defines the lumbar support configuration and flexibility.

Osaki OP-4D Master Armrest Padding

How padded are the armrests?

0 Osaki OP-4D Master 0 Votes Thick

0 Massage Chairs in this range Standard

Specifies the softness and material of the armrest padding.

Osaki OP-4D Master Adjustable Head Pillow

Is the head pillow adjustable?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Specifies whether the head pillow can be repositioned or adjusted.

Osaki OP-4D Master Cooling Ventilation System

Does the chair feature a cooling ventilation system?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Indicates the presence of airflow channels or ventilation to keep the chair cool.

Safety & Protection ⁶

Osaki OP-4D Master Overheat Protection

Does it have overheat protection?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

Overheat Protection ensures user safety by preventing the chair from becoming too hot during operation.

Prevents damage or fire by automatically shutting off if components overheat.

Osaki OP-4D Master Power Surge Protection

Does it include power surge protection?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

Power Surge Protection ensures that the chair remains safe and operational during electrical fluctuations.

Shields the chair’s electrical system from voltage spikes.

Osaki OP-4D Master Safety Certifications

What safety certifications does it have?

0 Osaki OP-4D Master 0 Votes UL, FCC

0 Massage Chairs in this range UL, CE

Lists the official safety certifications obtained by the chair.

Osaki OP-4D Master Overload Protection

Does the chair include overload protection?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Detects and limits excessive electrical or mechanical load.

Osaki OP-4D Master Emergency Stop Button

Does it have an emergency stop button?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Instantly stops all massage functions when pressed.

Osaki OP-4D Master Flame Retardant Materials

Are the materials flame retardant?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Indicates if chair materials resist ignition or burning.

Power & Performance ¹⁰

Osaki OP-4D Master Rated Voltage

What is the rated voltage?

110 Volt 0 Votes

112.78 Volt (Average)

The operating voltage required for the chair’s power supply.

Osaki OP-4D Master Rated Frequency

What is the rated frequency?

50 Hz 0 Votes

59.07 Hz (Average)

The electrical frequency required for optimal performance.

Osaki OP-4D Master Power Consumption

What is the power consumption of the chair?

250 Watt 0 Votes

220.64 Watt (Average)

The average electrical power required for full operation.

Osaki OP-4D Master Motor Count

How many motors does the chair have?

0 Osaki OP-4D Master 0 Votes 4

0 Massage Chairs in this range 4

The total number of motors used in the chair.

Osaki OP-4D Master Motor Type

What type of motor does it use?

0 Osaki OP-4D Master 0 Votes DC Motor

0 Massage Chairs in this range DC Motor

Type of motor technology used for massage functions.

Osaki OP-4D Master Motor Power

What is the motor power?

250 Watt 0 Votes

166.4 Watt (Average)

Power rating of each motor or the total motor output.

Osaki OP-4D Master Operating Noise Level

What is the operating noise level?

45 dB 0 Votes

52.52 dB (Average)

The sound level produced during normal operation.

Osaki OP-4D Master Run Time Limit

What is the run time limit?

15 min 0 Votes

32.45 min (Average)

Maximum continuous operation time before cooldown is needed.

Osaki OP-4D Master Power Cord Length

What is the power cord length?

8 ft 0 Votes

7.67 ft (Average)

The total length of the power cable for flexible placement.

Osaki OP-4D Master Energy Efficiency Rating

What is the energy efficiency rating?

0 Osaki OP-4D Master 0 Votes B

0 Massage Chairs in this range B

The efficiency grade of the chair’s power system.

Maintenance & Durability ⁷

Osaki OP-4D Master Replaceable Components

Does it have replaceable components?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

With Replaceable Components, maintenance and repairs can be performed with ease.

Specifies if key parts (rollers, cushions, etc.) can be replaced when worn.

Osaki OP-4D Master Warranty Duration

What is the warranty duration?

0 Osaki OP-4D Master 0 Votes 3 years

0 Massage Chairs in this range 3 Years

Length of time the product is covered under warranty.

Osaki OP-4D Master Warranty Coverage Type

What type of warranty coverage does it offer?

0 Osaki OP-4D Master 0 Votes Parts & Labor

0 Massage Chairs in this range Parts & Labor

Specifies the scope of the product’s warranty protection.

Osaki OP-4D Master Cover Washability

Is the chair cover washable?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Indicates whether the outer fabric or cover can be removed and washed.

Osaki OP-4D Master Maintenance Interval

What is the recommended maintenance interval?

6 month 0 Votes

10.59 month (Average)

Recommended time between routine maintenance checks.

Osaki OP-4D Master Upholstery Durability Rating

What is the upholstery durability rating?

0 Osaki OP-4D Master 0 Votes 20.000 Cycles

0 Massage Chairs in this range 50.000 Cycles

Rated wear resistance of the chair’s upholstery material.

Osaki OP-4D Master Spare Parts Availability

Are spare parts available for this chair?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Indicates if spare parts are readily available for maintenance.

Package & Installation ⁷

Osaki OP-4D Master Package Height

What is the package height?

50 inch 0 Votes

47.83 inch (Average)

Osaki OP-4D Master

The Package Height of 50 inch (127 cm) ensures it can fit through standard doorways.

The total height of the package as shipped.

Osaki OP-4D Master Delivery Condition

What is the delivery condition?

0 Osaki OP-4D Master 0 Votes Partially Assembled

0 Massage Chairs in this range Partially Assembled

The condition in which the chair is delivered to the user.

Osaki OP-4D Master Package Width

What is the package width?

55.3 inch 0 Votes

40.1 inch (Average)

The total width of the chair package for delivery.

Osaki OP-4D Master Package Depth

What is the package depth?

33.9 inch 0 Votes

49.7 inch (Average)

The total depth of the chair package.

Osaki OP-4D Master Installation Type

What is the installation type?

0 Osaki OP-4D Master 0 Votes Preassembled

0 Massage Chairs in this range Partial Assembly

Defines how the chair is set up upon delivery.

Osaki OP-4D Master Assembly Tools

Are assembly tools included?

No 0 Votes ~~Osaki OP-4D Master~~

Yes Massage Chairs in this range

Indicates whether the necessary assembly tools are provided.

Osaki OP-4D Master User Manual

Is a user manual included?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

States if a printed or digital user manual is included in the package.

Brand Support & Service ⁶

Osaki OP-4D Master Extended Warranty Option

Is there an extended warranty option?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

The Extended Warranty Option offers peace of mind with additional coverage.

Indicates if users can purchase additional warranty coverage.

Osaki OP-4D Master Accessories Availability

Are accessories available for this model?

Yes 0 Votes Osaki OP-4D Master

Yes Massage Chairs in this range

Osaki OP-4D Master

This model offers Accessories Availability, allowing users to enhance their massage experience.

States if compatible accessories are available from the manufacturer.

Osaki OP-4D Master Customer Support Availability

When is customer support available?

0 Osaki OP-4D Master 0 Votes 24/7

0 Massage Chairs in this range 24/7

Defines when customer support is available for assistance.

Osaki OP-4D Master Remote Support Options

What remote support options are available?

0 Osaki OP-4D Master 0 Votes Phone, Email, Live Chat

0 Massage Chairs in this range Phone, Email

Channels available for remote assistance.

Osaki OP-4D Master Service Center Coverage

What is the service center coverage?

0 Osaki OP-4D Master 0 Votes International

0 Massage Chairs in this range National

The geographical range of the brand’s authorized service centers.

Osaki OP-4D Master Replacement Policy

What is the replacement policy duration?

0 Osaki OP-4D Master 0 Votes 30 Days

0 Massage Chairs in this range 30 Days

Specifies the replacement window after purchase for defective units.

Surveys

Because hot takes deserve votes.

Osaki OP-4D Master Comfort

How comfortable is this massage chair during use?

Very comfortable — Provides full body relaxation, perfect pressure and heat 0 Votes

Comfortable — Very good pressure and heat for most users 0 Votes

Average comfort — Decent pressure but might not be ideal for all users 0 Votes

Uncomfortable — Pressure is either too light or too intense, lacks heat 0 Votes

Very uncomfortable — Causes discomfort, poor pressure and no heat 0 Votes

Osaki OP-4D Master Durability and Build Quality

How would you rate the durability and build quality of this massage chair?

Very durable — Built to last for many years with heavy daily use 0 Votes

Durable — Will last for a long time with proper care 0 Votes

Average durability — Moderate wear expected after 2-3 years 0 Votes

Below average durability — Will show signs of wear after 1 year 0 Votes

Poor durability — Breaks or malfunctions within the first year of use 0 Votes

Osaki OP-4D Master Ease of Setup

How easy was it to set up this massage chair?

Very easy — Took under 10 minutes with no tools required 0 Votes

Easy — Set up in under 30 minutes with basic instructions 0 Votes

Average — Took over 30 minutes and required some effort 0 Votes

Difficult — Required multiple people or specialized tools for setup 0 Votes

Very difficult — Setup was complex and time-consuming, unclear instructions 0 Votes

Osaki OP-4D Master Noise Level

How noisy is this massage chair during use?

Very quiet — Operates under 40 dB, virtually silent 0 Votes

Quiet — Operates under 50 dB, can barely hear it 0 Votes

Average noise — Operates around 60 dB, noticeable hum 0 Votes

Loud — Operates around 70 dB, can be disturbing in quiet spaces 0 Votes

Very loud — Over 80 dB, loud enough to be disruptive 0 Votes

Osaki OP-4D Master Design Appeal

How aesthetically pleasing is the design of this massage chair?

Sleek and modern — Stylish, fits with most home décor 0 Votes

Attractive — Good design, blends well with most settings 0 Votes

Neutral — Design is acceptable but not remarkable 0 Votes

Unattractive — Not visually appealing, looks bulky or outdated 0 Votes

Very unattractive — Poor design, does not fit with modern interiors 0 Votes

Osaki OP-4D Master Pricing

How would you rate the price of this massage chair compared to its value?

Great value for money — Worth every penny for the features and quality 0 Votes

Pretty good price — Reasonable cost for the features provided 0 Votes

Fair deal — Average price, but you're getting what you pay for 0 Votes

Kinda pricey — A little more expensive than expected for the value 0 Votes

Crazy expensive — Not worth the price for what you get 0 Votes

Osaki OP-4D Master Massage Features and Customization

How customizable and effective are the massage features on this chair?

Highly customizable — Multiple modes, intensity levels, heat settings, and target areas 0 Votes

Well customizable — Several modes and intensity options, decent heat feature 0 Votes

Average customization — Limited modes or intensity settings, some customization options 0 Votes

Below average — Very few modes or intensity options, minimal customization 0 Votes

No customization — Fixed settings, no way to adjust the massage 0 Votes

Osaki OP-4D Master Performance and Speed

How would you rate the performance and speed of the massage function in this chair?

Very fast and efficient — Delivers quick, effective massage with fast results 0 Votes

Fast — Provides good results in a reasonable amount of time 0 Votes

Average — Massage speed is decent but could be faster or more effective 0 Votes

Slow — Takes longer to feel any significant results 0 Votes

Very slow — Massage is ineffective, takes too long to see any results 0 Votes

Osaki OP-4D Master Heat Function Effectiveness

How effective is the heat function in this massage chair?

Very effective — Provides soothing, deep heat that enhances the massage 0 Votes

Effective — Warmth is noticeable and helps with relaxation 0 Votes

Average — Heat function works but doesn’t provide much relief 0 Votes

Below average — Heat is weak and doesn’t improve the experience 0 Votes

Ineffective — Heat function is practically non-existent or uncomfortable 0 Votes

Osaki OP-4D Master Size and Fit

How would you rate the size and fit of this massage chair for your space?

Perfect fit — Fits seamlessly into any space without being bulky 0 Votes

Good fit — Takes up some space but still manageable in most rooms 0 Votes

Average fit — Large but still workable in most rooms 0 Votes

Below average fit — Takes up a lot of space, difficult to place 0 Votes

Poor fit — Too large or small, doesn't fit well in most spaces 0 Votes

Reviews ⁰

The good, the bad, and the brutally honest.

Average Rating

Osaki

Osaki OP-4D Master

0 / 5 0 Reviews

Discussions ⁰

Thoughts, takes, and hot debates.

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Osaki OP-4D Master

Highlights 101

Why is Osaki OP-4D Master better than other massage chairs ?

General Information

Dimensions & Weight

Design & Materials

Massage Mechanism

Massage Programs & Modes

Adjustability & Positions

Air & Heat Therapy

Vibration Features

Foot & Calf Massage

Controls & Interface

Connectivity & Integration

Comfort & Ergonomics

Safety & Protection

Power & Performance

Maintenance & Durability

Package & Installation

Brand Support & Service

Quick Take

Osaki OP-4D Master

Specifications & Facts 166

General Information 7

Osaki OP-4D Master Product Type

Osaki OP-4D Master Country of Origin

Osaki OP-4D Master User Weight Capacity

Osaki OP-4D Master Series

Osaki OP-4D Master Model Number

Osaki OP-4D Master Release Year

Osaki OP-4D Master Intended User Height Range

Dimensions & Weight 12

Osaki OP-4D Master Width

Osaki OP-4D Master Depth

Osaki OP-4D Master Height

Osaki OP-4D Master Seat Width

Osaki OP-4D Master Net Weight

Osaki OP-4D Master Seat Depth

Osaki OP-4D Master Seat Height

Osaki OP-4D Master Backrest Height

Osaki OP-4D Master Armrest Height

Osaki OP-4D Master Folded Width

Osaki OP-4D Master Folded Depth

Osaki OP-4D Master Folded Height

Design & Materials 11

Osaki OP-4D Master Leg Rest Type

Osaki OP-4D Master

Osaki OP-4D Master Color Options

Osaki OP-4D Master Recline Type

Osaki OP-4D Master Frame Material

Osaki OP-4D Master Upholstery Material

Osaki OP-4D Master Cushion Type

Osaki OP-4D Master Seat Shape

Osaki OP-4D Master Armrest Type

Osaki OP-4D Master Base Type

Osaki OP-4D Master Headrest Type

Osaki OP-4D Master Cover Removability

Massage Mechanism 15

Osaki OP-4D Master Kneading Function

Osaki OP-4D Master

Osaki OP-4D Master Rolling Function

Osaki OP-4D Master

Osaki OP-4D Master Massage Roller Type

Osaki OP-4D Master Roller Track Type

Osaki OP-4D Master Airbag Placement Zones

Osaki OP-4D Master Dual Action Massage

Osaki OP-4D Master Massage Type

Osaki OP-4D Master Track Length

Osaki OP-4D Master Airbag Count

Osaki OP-4D Master Compression Type

Osaki OP-4D Master Shiatsu Function

Osaki OP-4D Master Tapping Function

Osaki OP-4D Master Roller Material

Osaki OP-4D Master Roller Size

Osaki OP-4D Master Number of Massage Nodes

Massage Programs & Modes 15

Osaki OP-4D Master Body Scan Function

Osaki OP-4D Master

Osaki OP-4D Master Partial Massage Option

Osaki OP-4D Master

Osaki OP-4D Master Full Body Mode

Highlights ¹⁰¹

Specifications & Facts ¹⁶⁶

General Information ⁷

Dimensions & Weight ¹²

Design & Materials ¹¹

Massage Mechanism ¹⁵

Massage Programs & Modes ¹⁵

Adjustability & Positions ¹⁵

Air & Heat Therapy ¹⁰

Vibration Features ⁴

Foot & Calf Massage ⁹

Controls & Interface ¹³