DR J Hi 04 Review | 85 Data compared

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  • Avg. price in UK: ~£90
  • Avg. price in US: ~$70
  • ANSI lumens: ?
  • Native panel resolution: 800x480
  • Throw ratio: 1.4:1

DR J Hi 04 review. Compare 85 technical specifications and user reviews to see how it ranks among projectors and if it is worth buying.

5.1

Overall score

What it is: An overall evaluation of the projector's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best projectors on the market.

Score components:

90.0%

4.6

Technical Score

10.0%

9.0

User score

Good
4.6

Technical Score

What it is: An assessment of the projector's technical performance, covering eight key areas: image quality, brightness, contrast, connectivity, gaming features, smart features, audio, and design.

When it matters: When you want to compare projectors based on technical performance and available features.

Score components:

42.0%

5.4

Image Quality

22.0%

2.7

Projection & Lens

12.0%

4.5

HDMI & Gaming

10.0%

5.2

Audio & Features

8.0%

3.1

Connectivity

6.0%

7.5

Design & Power

Poor
9.0

User score

What it is: A rating that combines user reviews and the total number of reviews received by the projector.

When it matters: When you want to know how a projector performs in real use and how reliable it remains over time according to user feedback.

Score components:

70.0%

8.6

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.3
(4449)

(Reviews last updated: June 2026)

Exceptional
  • 5.0
    Gaming

    Score components:

    35.0%

    ?

    Input lag

    25.0%

    1.0

    Refresh rate

    20.0%

    ?

    Output Resolution

    10.0%

    1.0

    HDR10 support

    10.0%

    2.0

    Audio output power

  • 6.9
    Portable

    Score components:

    35.0%

    9.9

    Weight

    20.0%

    ?

    Has A Built-In Speaker

    15.0%

    10

    Bluetooth connectivity

    15.0%

    1.0

    Wi-Fi connectivity

    15.0%

    1.0

    Smart TV features

  • 4.9
    Home theatre

    Score components:

    30.0%

    ?

    Output Resolution

    25.0%

    1.0

    HDR10 support

    20.0%

    1.0

    Dolby Vision support

    15.0%

    ?

    ANSI lumens

    10.0%

    8.6

    Audible noise

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Best prices in UK

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The DR. J Professional HI-04 is a portable mini LED projector featuring a native resolution of 720p with support for 1080p Full HD input, a 2000:1 contrast ratio, and a lamp life extended up to 40,000–50,000 hours. It offers versatile connectivity including HDMI, USB, VGA, and Micro SD, capable of projecting an image ranging from 32 to 176 inches at distances between 1.5 and 5 metres. Main pros include its extreme affordability, high portability for travel or camping, and the inclusion of a 100-inch projection screen in many bundles. However, notable cons include limited brightness that requires a pitch-black room for visibility, basic built-in sound quality that often necessitates external speakers, and manual-only keystone correction.

Technical Specifications of DR J Hi 04

Technical Score

What it is: An assessment of the projector's technical performance, covering eight key areas: image quality, brightness, contrast, connectivity, gaming features, smart features, audio, and design.

When it matters: When you want to compare projectors based on technical performance and available features.

Score components:

42.0%

5.4

Image Quality

22.0%

2.7

Projection & Lens

12.0%

4.5

HDMI & Gaming

10.0%

5.2

Audio & Features

8.0%

3.1

Connectivity

6.0%

7.5

Design & Power

4.6
DR J Hi 04 has a technical score of 4.64 points, which is lower than 92.4% of projectors.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the projector.

When it matters: When you want to know how a projector performs in real use and how reliable it remains over time according to user feedback.

Score components:

70.0%

8.6

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.3
(4449)

(Reviews last updated: June 2026)

9.0
DR J Hi 04 has a user score of 9.02 points, which is higher than 91.9% of projectors.
Popularity
What it is: An indicator based on the number of reviews received by the projector.
When it matters: When you prefer to buy a product chosen and reviewed by many other consumers.
10
DR J Hi 04 has a popularity of 10 points, which is higher than 83.9% of products in this category.
Ratio quality/price

What it is: An indicator that combines the projector's overall rating with its cost.

When it matters: When you are looking for a projector with a good balance between quality and price.

Score components:

60.0%

5.1

Overall score

40.0%

10

Price

6.6
DR J Hi 04 has a quality-to-price ratio of 6.6 points, which is higher than 71.6% of products in this category.
ANSI lumens
What it is: Brightness output measured in ANSI lumens.
When it matters: When you watch with ambient light or on a large screen, higher brightness matters.

Importance: HIGH

?
Contrast ratio
What it is: Ratio of brightest white to darkest black displayed by the projector.
When it matters: When you watch movies in a dark room, stronger contrast matters.

Importance: HIGH

2000:1
DR J Hi 04 has a contrast ratio of 2000:1, lower than 71.1% of projectors and equal to 7.6% of projectors.
Native contrast ratio.
Native panel resolution
What it is: Native resolution of the display panel or imaging device.
When it matters: When picture sharpness matters enough that you want to know the projector's true native imaging resolution, not just supported input formats.

Importance: HIGH

800x480
DR J Hi 04 uses a native resolution of 800x480, lower than 99.2% of projectors and equal to 0.5% of projectors.
Output Resolution
What it is: The resolution the projector can actually display through its imaging system.
When it matters: When you want to know the actual image detail the projector can put on screen rather than just the source format it accepts.

Importance: HIGH

?
Projection technology
What it is: Projection imaging technology used by the projector.
When it matters: When color character, contrast behavior, and overall image personality matter before you compare brightness alone.

Importance: MEDIUM

LCD
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Throw ratio
What it is: Ratio between projection distance and image width.
When it matters: When room size and screen size have to match properly instead of guessing whether the projector will fit the space.

Importance: MEDIUM

1.4:1
Min throw distance
What it is: Minimum distance required between projector and screen.
When it matters: When room depth is limited and you still need a large image from a short placement distance.

Importance: MEDIUM

1.5 m
DR J Hi 04 needs a minimum throw distance of 1.5 m, longer than 78.8% of projectors and equal to 7.2% of projectors.
Max projection size
What it is: Maximum supported image size for projection, measured diagonally.
When it matters: When you want a cinema-size picture, maximum projection size matters.

Importance: MEDIUM

176 inch
DR J Hi 04 supports projection sizes up to 176 inch, smaller than 65.7% of projectors and equal to 0.4% of projectors.
Zoom ratio
What it is: Optical zoom capability expressed as a ratio.
When it matters: When projector placement is not ideal and you need optical zoom to frame the image correctly.

Importance: MEDIUM

N/A
Motorized zoom
What it is: Motorized control of the optical zoom function.
When it matters: When the projector position is fixed but screen size or framing still needs to be adjusted from a distance.

Importance: LOW

no
DR J Hi 04 does not have motorized zoom. 16.3% of projectors have motorized zoom.
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Input lag
What it is: Time delay between input signal and displayed image, measured in milliseconds.
When it matters: When gaming responsiveness matters and you want controls to feel more immediate on fast titles.

Importance: MEDIUM

?
Auto low latency mode (ALLM)
What it is: Automatically reduces input lag when gaming.
When it matters: When you play fast games, lower latency matters.

Importance: LOW

no
DR J Hi 04 does not support ALLM. 20.3% of projectors support ALLM.
Variable refresh rate (VRR)
What it is: Support for variable refresh rate to reduce screen tearing.
When it matters: When gaming matters and you want the projector to handle variable frame rates with less tearing or stutter.

Importance: LOW

no
DR J Hi 04 does not support VRR. 1.9% of projectors support VRR.
HDMI version
What it is: Version of the HDMI standard supported.
When it matters: When source devices push newer HDMI features, refresh rates, or bandwidth levels that older ports may limit.

Importance: LOW

?
Max HDMI bandwidth
What it is: Maximum bandwidth supported by HDMI inputs, measured in Gbps.
When it matters: When newer consoles, gaming PCs, or media boxes need more HDMI throughput than older projectors can handle.

Importance: LOW

10.2 Gbps
DR J Hi 04 supports HDMI bandwidth up to 10.2 Gbps, lower than 52.1% of projectors and equal to 45.4% of projectors.
Show more
N. of HDMI ports
What it is: Number of available HDMI input ports.
When it matters: When you need a console, streamer, set-top box, and another source connected at the same time without swapping cables.

Importance: LOW

1
DR J Hi 04 has 1 HDMI port/s, fewer than 54.6% of projectors and equal to 42.2% of projectors.
Wi-Fi connectivity
What it is: Support for Wi-Fi network connectivity.
When it matters: When the projector should handle network features, updates, or streaming functions without needing wired Ethernet only.

Importance: LOW

no
DR J Hi 04 does not support Wi-Fi. 52.7% of projectors support Wi-Fi.
Wi-Fi version
What it is: Supported Wi-Fi standard version.
When it matters: When wireless stability and throughput matter for streaming, updates, or projector ecosystem features.

Importance: LOW

N/A
Bluetooth connectivity
What it is: Support for Bluetooth wireless connectivity.
When it matters: When you plan to pair wireless speakers, headphones, remotes, or other accessories directly with the projector.

Importance: LOW

yes
DR J Hi 04 supports Bluetooth. 50.1% of projectors support Bluetooth.
Bluetooth version
What it is: Supported Bluetooth version.
When it matters: When wireless accessory compatibility and connection quality matter beyond Bluetooth being a simple checkbox.

Importance: LOW

5.2
DR J Hi 04 supports Bluetooth 5.2, more modern than 88.7% of projectors and equal to 7.4% of projectors.
Show more
Smart TV features
What it is: Includes built-in Smart TV functions or operating system.
When it matters: When you prefer built-in apps and streaming convenience instead of adding an external media stick or box.

Importance: LOW

no
DR J Hi 04 does not have smart TV features. 43.8% of projectors have smart TV features.
Operating system
What it is: The built-in software platform that runs the projector interface, streaming apps, and smart features.
When it matters: When you care about which apps are available, how modern the smart interface feels, and whether the projector includes a built-in streaming platform.

Importance: LOW

none
Android OS

Importance: MEDIUM

no
Dedicated smartphone app
What it is: Availability of a dedicated smartphone control app.
When it matters: When you want setup, input switching, or basic control handled from your phone without always reaching for a remote.

Importance: LOW

no
DR J Hi 04 does not come with a dedicated smartphone app. 35.6% of projectors come with a dedicated smartphone app.
Remote control
What it is: Comes with a dedicated remote control for operation.
When it matters: When you want easier everyday control without extra gear, built-in convenience features matter.

Importance: LOW

yes
DR J Hi 04 includes a remote control. 1.6% of projectors include a remote control.
Show more
Light source type
What it is: Type of light source used by the projector.
When it matters: When maintenance expectations, startup behavior, brightness stability, and long-term running costs all matter in the buying decision.

Importance: LOW

led
DR J Hi 04 uses led light source technology, more advanced than 33.1% of projectors and equal to 39% of projectors.
Laser Light Source
What it is: Whether the projector uses a laser light source instead of a traditional lamp.
When it matters: When lower maintenance, faster startup, and a lamp-free light engine matter over the long term.

Importance: LOW

no
DR J Hi 04 does not use a laser light source. 28.1% of projectors use a laser light source.
Lamp life
What it is: Expected operational lifespan of the lamp in standard mode, measured in hours.
When it matters: When you care about running costs and maintenance intervals, light-source lifespan matters.

Importance: LOW

40,000 hours
DR J Hi 04 offers lamp life of 40000 hours, shorter than 94.4% of projectors and equal to 0.8% of projectors.
LED light source life.
Lamp life (eco mode)
What it is: Expected operational lifespan of the lamp in eco mode, measured in hours.
When it matters: When you care about running costs and maintenance intervals, light-source lifespan matters.

Importance: LOW

?
Operating power consumption
What it is: Average power consumption during normal operation.
When it matters: When electricity use and heat output matter because the projector runs for long sessions or frequent daily use.

Importance: LOW

60 W
DR J Hi 04 uses 60 W of power, less than 87.5% of projectors and equal to 1.7% of projectors.
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DR J Hi 04 vs the average projector

  • Built-in stereo speakers
    DR J Hi 04 has stereo speakers, while the average projector does not. 48.9% of projectors have stereo speakers.
    stereo speakers.
    What it is: Built-in stereo speakers for audio playback.
    When it matters: When casual use should include left-right sound without automatically adding an external audio setup.

    Importance: LOW

    DR J Hi 04 has stereo speakers, while the average projector does not. 48.9% of projectors have stereo speakers.
  • 20,000 hours longer lamp life
    DR J Hi 04 has a higher lamp life than the average projector (40,000 hours vs 20,000 hours). The average projector has 20,000 hours of lamp life.
    LED light source life.
    What it is: Expected operational lifespan of the lamp in standard mode, measured in hours.
    When it matters: When you care about running costs and maintenance intervals, light-source lifespan matters.

    Importance: LOW

    DR J Hi 04 has a higher lamp life than the average projector (40,000 hours vs 20,000 hours). The average projector has 20,000 hours of lamp life.40000 hours vs 20000 hours
  • Supports Bluetooth
    DR J Hi 04 supports Bluetooth, while the average projector does not. 49.9% of projectors support Bluetooth.
    What it is: Support for Bluetooth wireless connectivity.
    When it matters: When you plan to pair wireless speakers, headphones, remotes, or other accessories directly with the projector.

    Importance: LOW

    DR J Hi 04 supports Bluetooth, while the average projector does not. 49.9% of projectors support Bluetooth.
  • Wider color gamut
    DR J Hi 04 has a higher color gamut coverage than the average projector (53% sRGB, 45% NTSC % vs 99% Rec.709 %). The average projector has 99% Rec.709 % of color gamut coverage.
    What it is: Percentage of the target color gamut covered by the projector.
    When it matters: When you care about accurate tones and refined image quality, color precision matters.

    Importance: HIGH

    DR J Hi 04 has a higher color gamut coverage than the average projector (53% sRGB, 45% NTSC % vs 99% Rec.709 %). The average projector has 99% Rec.709 % of color gamut coverage.53% sRGB, 45% NTSC % vs 99% Rec.709 %
  • 1 more audio input ports
    DR J Hi 04 has more audio input ports than the average projector (1 vs 0). The average projector has 0 audio input ports.
    Via combined AV input.
    What it is: Number of analog audio input ports available.
    When it matters: When you connect several devices at the same time, port count matters.

    Importance: LOW

    DR J Hi 04 has more audio input ports than the average projector (1 vs 0). The average projector has 0 audio input ports.1 vs 0
  • 173.9 W lower power use
    DR J Hi 04 uses less power than the average projector (60 W vs 233.9 W). The average projector uses 233.9 W of power.
    What it is: Average power consumption during normal operation.
    When it matters: When electricity use and heat output matter because the projector runs for long sessions or frequent daily use.

    Importance: LOW

    DR J Hi 04 uses less power than the average projector (60 W vs 233.9 W). The average projector uses 233.9 W of power.60 W vs 233.9 W
  • 56.1% lighter weight
    DR J Hi 04 is lighter than the average projector (1.4 kg vs 3.1 kg). The average projector weighs 3.1 kg.
    What it is: Total weight of the projector including lamp and lens.
    When it matters: When you move the projector between rooms or setups, lower weight matters.

    Importance: LOW

    DR J Hi 04 is lighter than the average projector (1.4 kg vs 3.1 kg). The average projector weighs 3.1 kg.1.361 kg vs 3.1 kg
  • 8.56x cheaper
    DR J Hi 04 is cheaper than the average projector (£90 vs £770).
    DR J Hi 04 is cheaper than the average projector (£90 vs £770).£90 vs £770
  • Wider color gamut
    DR J Hi 04 has a higher color gamut coverage than the average projector (53% sRGB, 45% NTSC % vs 99% Rec.709 %). The average projector has 99% Rec.709 % of color gamut coverage.
  • Supports Bluetooth
    DR J Hi 04 supports Bluetooth, while the average projector does not. 49.9% of projectors support Bluetooth.
  • Includes memory card slot
    DR J Hi 04 includes an external memory slot, while the average projector does not. 34.9% of projectors include an external memory slot.
  • Includes VGA
    DR J Hi 04 includes VGA input, while the average projector does not. 43.1% of projectors include VGA input.
  • Built-in stereo speakers
    DR J Hi 04 has stereo speakers, while the average projector does not. 48.9% of projectors have stereo speakers.
  • 1 more audio input ports
    DR J Hi 04 has more audio input ports than the average projector (1 vs 0). The average projector has 0 audio input ports.
  • 20,000 hours longer lamp life
    DR J Hi 04 has a higher lamp life than the average projector (40,000 hours vs 20,000 hours). The average projector has 20,000 hours of lamp life.
  • 173.9 W lower power use
    DR J Hi 04 uses less power than the average projector (60 W vs 233.9 W). The average projector uses 233.9 W of power.
  • 2 dB quieter operation
    DR J Hi 04 has a lower audible noise than the average projector (28 dB vs 30 dB). The average projector has 30 dB of audible noise.
  • 56.1% lighter weight
    DR J Hi 04 is lighter than the average projector (1.4 kg vs 3.1 kg). The average projector weighs 3.1 kg.
  • No HDR10 support
    DR J Hi 04 does not support HDR10, while the average projector does. 56.3% of projectors support HDR10.
  • Low native resolution
    DR J Hi 04 has a lower native panel resolution than the average projector (800x480 vs 1920x1080). The average projector has a native panel resolution of 1920x1080.
  • 2 bit lower color depth
    DR J Hi 04 has a lower color depth than the average projector (8 bit vs 10 bit). The average projector has 10 bit of color depth.
  • Lower contrast ratio
    DR J Hi 04 has a lower contrast ratio than the average projector (2000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.
    Native contrast ratio.
  • 29.4% lower refresh rate
    DR J Hi 04 has a lower refresh rate than the average projector (60 Hz vs 85 Hz). The average projector has 85 Hz of refresh rate.
  • No 3D support
    DR J Hi 04 does not support 3D playback, while the average projector does. 55.1% of projectors support 3D playback.
    No supported 3D playback format is stated.
  • No 3D glasses support
    DR J Hi 04 does not support 3D glasses, while the average projector does. 55.9% of projectors support 3D glasses.
  • 0.44 m longer throw distance
    DR J Hi 04 has a higher throw distance than the average projector (1.5 m vs 1.06 m). The average projector has 1.06 m of throw distance.
  • 74 inch smaller image size
    DR J Hi 04 has a lower projection size than the average projector (176 inch vs 250 inch). The average projector has 250 inch of projection size.
  • 15 degrees less vertical keystone correction
    DR J Hi 04 offers less vertical keystone correction than the average projector (15 degrees degrees vs 30 degrees degrees). The average projector offers 30 degrees degrees of vertical keystone correction.
  • Limited HDMI format
    DR J Hi 04 supports a less capable max HDMI input format than the average projector (1080p/60Hz vs 4K/120Hz). The average projector supports a max HDMI input format of 4K/120Hz.
  • 43.3% lower HDMI bandwidth
    DR J Hi 04 has a lower HDMI bandwidth than the average projector (10.2 Gbps vs 18 Gbps). The average projector has 18 Gbps of HDMI bandwidth.
  • Old HDCP version
    DR J Hi 04 has Old HDCP version than the average projector (1.4 vs 2.2). The average projector supports HDCP 2.2.
  • 1 fewer HDMI ports
    DR J Hi 04 has fewer HDMI ports than the average projector (1 vs 2). The average projector has 2 HDMI ports.
  • No Wi-Fi support
    DR J Hi 04 does not support Wi-Fi, while the average projector does. 52.6% of projectors support Wi-Fi.
  • No RS-232 control
    DR J Hi 04 does not support RS-232 control, while the average projector does. 52.1% of projectors support RS-232 control.
  • 60% weaker audio output
    DR J Hi 04 has a lower audio output power than the average projector (4 W vs 10 W). The average projector has 10 W of audio output power.
    2x2W.
  • Basic light source
    DR J Hi 04 has Basic light source than the average projector (led vs laser). The average projector uses a laser light source.
  • 4 older model
    DR J Hi 04 was released earlier than the average projector (2,017 vs 2,021). The average projector was released in 2,021.
  • No HDR10 support
    DR J Hi 04 does not support HDR10, while the average projector does. 56.3% of projectors support HDR10.
    What it is: Support for HDR10 high dynamic range standard.
    When it matters: When you want the projector to handle mainstream HDR movie and streaming content instead of standard dynamic range only.

    Importance: MEDIUM

    DR J Hi 04 does not support HDR10, while the average projector does. 56.3% of projectors support HDR10.
  • Low native resolution
    DR J Hi 04 has a lower native panel resolution than the average projector (800x480 vs 1920x1080). The average projector has a native panel resolution of 1920x1080.
    What it is: Native resolution of the display panel or imaging device.
    When it matters: When picture sharpness matters enough that you want to know the projector's true native imaging resolution, not just supported input formats.

    Importance: HIGH

    DR J Hi 04 has a lower native panel resolution than the average projector (800x480 vs 1920x1080). The average projector has a native panel resolution of 1920x1080.800x480 vs 1920x1080
  • Limited HDMI format
    DR J Hi 04 supports a less capable max HDMI input format than the average projector (1080p/60Hz vs 4K/120Hz). The average projector supports a max HDMI input format of 4K/120Hz.
    What it is: Highest HDMI input format supported by the projector.
    When it matters: When you want to confirm the exact signal format the projector can accept from high-end modern sources.

    Importance: MEDIUM

    DR J Hi 04 supports a less capable max HDMI input format than the average projector (1080p/60Hz vs 4K/120Hz). The average projector supports a max HDMI input format of 4K/120Hz.1080p/60Hz vs 4K/120Hz
  • 2 bit lower color depth
    DR J Hi 04 has a lower color depth than the average projector (8 bit vs 10 bit). The average projector has 10 bit of color depth.
    What it is: Number of bits per color channel for color depth.
    When it matters: When you care about accurate tones and refined image quality, color precision matters.

    Importance: LOW

    DR J Hi 04 has a lower color depth than the average projector (8 bit vs 10 bit). The average projector has 10 bit of color depth.8 bit vs 10 bit
  • 1 fewer HDMI ports
    DR J Hi 04 has fewer HDMI ports than the average projector (1 vs 2). The average projector has 2 HDMI ports.
    What it is: Number of available HDMI input ports.
    When it matters: When you need a console, streamer, set-top box, and another source connected at the same time without swapping cables.

    Importance: LOW

    DR J Hi 04 has fewer HDMI ports than the average projector (1 vs 2). The average projector has 2 HDMI ports.1 vs 2
  • Basic light source
    DR J Hi 04 has Basic light source than the average projector (led vs laser). The average projector uses a laser light source.
    What it is: Type of light source used by the projector.
    When it matters: When maintenance expectations, startup behavior, brightness stability, and long-term running costs all matter in the buying decision.

    Importance: LOW

    DR J Hi 04 has Basic light source than the average projector (led vs laser). The average projector uses a laser light source.led vs laser
  • 43.3% lower HDMI bandwidth
    DR J Hi 04 has a lower HDMI bandwidth than the average projector (10.2 Gbps vs 18 Gbps). The average projector has 18 Gbps of HDMI bandwidth.
    What it is: Maximum bandwidth supported by HDMI inputs, measured in Gbps.
    When it matters: When newer consoles, gaming PCs, or media boxes need more HDMI throughput than older projectors can handle.

    Importance: LOW

    DR J Hi 04 has a lower HDMI bandwidth than the average projector (10.2 Gbps vs 18 Gbps). The average projector has 18 Gbps of HDMI bandwidth.10.2 Gbps vs 18 Gbps
  • No Wi-Fi support
    DR J Hi 04 does not support Wi-Fi, while the average projector does. 52.6% of projectors support Wi-Fi.
    What it is: Support for Wi-Fi network connectivity.
    When it matters: When the projector should handle network features, updates, or streaming functions without needing wired Ethernet only.

    Importance: LOW

    DR J Hi 04 does not support Wi-Fi, while the average projector does. 52.6% of projectors support Wi-Fi.

Graphic comparison of DR J Hi 04 and

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Third-party reviews

United Kingdom

(Reviews last updated: June 2026)

What customers like about DR J Hi 04?

  • Highly affordable price point, often cited as a top value-for-money entry-level option
  • Great portability due to its compact 'mini' size and light weight
  • Impressive lamp life of up to 40,000 hours, significantly reducing maintenance costs over time
  • Ease of setup and use, including a user-friendly interface and simple connectivity options like HDMI and USB
  • Quiet cooling system featuring dual heat pipes and a silent fan

What customers dislike about DR J Hi 04?

  • Native resolution is 480p (800x480), which means 1080p content is downscaled and loses fine detail
  • Low brightness (lumens), making it difficult to see in rooms with ambient light; best used in pitch-black environments
  • Built-in speaker quality is poor and lacks bass, leading many users to recommend external speakers
  • Limited keystone correction (only ±15° vertical), which restricts placement options
  • Mixed long-term reliability reports, with some users experiencing early hardware failures after a few months

Expert reviews

N
nerdtechy.com
04/02/2019

The DR. J Professional HI-04 is a highly compact, budget-friendly mini projector weighing about 3 lbs and measuring 7.8 x 2.7 x 6.02 inches, making it a portable choice for home entertainment. It features an LED light source that produces 2,000 lumens with a 2,000:1 contrast ratio, capable of projecting an image up to 170 inches wide in dark rooms. The projector includes a dual-fan...Read more

Video reviews

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