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Xiaomi Redmi Projector 4 Review | 84 Data compared

Avg. price:~£160Native panel resolution:1920x1080ANSI lumens:?Throw ratio:1.2:1Lamp life:?

Xiaomi Redmi Projector 4 Review: Compare 84 technical specifications and user reviews to see how this product ranks in the Projectors category and whether it is worth buying.

6.7/10

Overall score

Score
6.7/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 55% of models
Score components

90%

6.7

Technical score

10%

?

User score

â–²Better than 55% of projectors
7.6

Value for money

Value for money
7.6/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
★ Better than 94% of models
Score components

70%

6.7

Overall score

30%

9.7

Price

★Better than 94%
6.7

Technical score

Technical score
6.7/ 10
✕
What it is
An assessment of technical performance for products in the Projectors category across these key areas: Image Quality, Projection & Lens, HDMI & Gaming, Connectivity, Audio & Features, Design & Power.
When it matters
When you want to compare projectors based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 61% of models
Score components

42%

7.2

Image Quality

22%

4.3

Projection & Lens

12%

7.9

HDMI & Gaming

10%

8.3

Audio & Features

8%

6.8

Connectivity

6%

7.4

Design & Power

â–²Better than 61%
?

User score

User score
8.0/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 69% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

  • No image
No image
Where to buy
    N/A~ £160
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of projector Xiaomi Redmi Projector 4

Technical score
Technical score
6.7/ 10
✕
What it is
An assessment of technical performance for products in the Projectors category across these key areas: Image Quality, Projection & Lens, HDMI & Gaming, Connectivity, Audio & Features, Design & Power.
When it matters
When you want to compare projectors based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 61% of models
Score components:

42%

7.2

Image Quality

22%

4.3

Projection & Lens

12%

7.9

HDMI & Gaming

10%

8.3

Audio & Features

8%

6.8

Connectivity

6%

7.4

Design & Power

6.7
User score
User score
8.0/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 69% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

?
Popularity
Popularity
1.0/ 10
✕
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.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 99% of models
Popularity:
Xiaomi Redmi Projector 4 has a popularity score of 1 point, which is lower than 64.5% of projectors.
1.0
Value for money
Value for money
7.6/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
★ Better than 94% of models
Score components:

70%

6.7

Overall score

30%

9.7

Price

7.6
ANSI lumens
?
Contrast ratio
?
Native panel resolution
1920x1080
This projector uses a native resolution of 1920x1080, higher than 26.2% of projectors and equal to 59.7% of projectors.
Output Resolution
1920x1080
This projector supports output resolution up to 1920x1080, higher than 24.9% of projectors and equal to 41% of projectors.
Projection technology
LCD
Show more
Throw ratio
1.2:1
Min throw distance
?
Max projection size
120 inch
Market range: <100 inch – >300 inch
This projector supports projection sizes up to 120 inch, smaller than 80% of projectors and equal to 11.1% of projectors.
Zoom ratio
N/A
Motorized zoom
no
This projector does not have motorized zoom. 16.3% of projectors have motorized zoom.
Show more
Input lag
42 ms
Market range: <8 ms – >68 ms
This projector has input lag of 42 ms, higher than 70.5% of projectors and equal to 0.2% of projectors.
In Game Mode.
Auto low latency mode (ALLM)
yes
This projector supports ALLM. 82.9% of projectors support ALLM.
Variable refresh rate (VRR)
no
This projector does not support VRR. 1.6% of projectors support VRR.
HDMI version
2
This projector supports HDMI 2, more modern than 45.3% of projectors and equal to 36.8% of projectors.
Max HDMI bandwidth
18 Gbps
Market range: <10 Gbps – >50 Gbps
This projector supports HDMI bandwidth up to 18 Gbps, higher than 47.7% of projectors and equal to 40.1% of projectors.
Show more
N. of HDMI ports
1
Market range: <1 – >6
This projector has 1 HDMI port/s, fewer than 55.1% of projectors and equal to 41.6% of projectors.
Wi-Fi connectivity
yes
This projector supports Wi-Fi. 47.2% of projectors support Wi-Fi.
Wi-Fi version
Wi-Fi 5 (802.11ac)
This projector supports Wi-Fi 5 (802.11ac), more modern than 55.1% of projectors and equal to 29.4% of projectors.
Bluetooth connectivity
yes
This projector supports Bluetooth. 49.6% of projectors support Bluetooth.
Bluetooth version
5.1
This projector supports Bluetooth 5.1, more modern than 80.8% of projectors and equal to 7.7% of projectors.
Show more
Smart TV features
yes
This projector has smart TV features. 56.4% of projectors have smart TV features.
Operating system
?
Android OS
?
Dedicated smartphone app
yes
This projector comes with a dedicated smartphone app. 64.9% of projectors come with a dedicated smartphone app.
Mi Home app.
Remote control
yes
This projector includes a remote control. 1.6% of projectors include a remote control.
Show more
Light source type
led
This projector uses led light source technology, more advanced than 33.1% of projectors and equal to 39% of projectors.
Laser Light Source
no
This projector does not use a laser light source. 28.1% of projectors use a laser light source.
Lamp life
?
Lamp life (eco mode)
?
Operating power consumption
65 W
Market range: <50 W – >400 W
This projector uses 65 W of power, less than 81% of projectors and equal to 6.4% of projectors.
Show more

Xiaomi Redmi Projector 4 vs the average projector

246810TotalImage QualityProjection & LensHDMI & GamingConnectivityAudio & FeaturesDesign & Power
  • Advanced focus control
    This projector offers Advanced focus control than the average projector (auto-focus vs manual). The average projector uses manual focus control.
    auto-focus vs manual
  • Supports ALLM
    This projector supports ALLM, while the average projector does not. 17.2% of projectors support ALLM.
  • Supports HDMI ARC
    This projector supports HDMI ARC, while the average projector does not. 36% of projectors support HDMI ARC.
  • Built-in smart TV features
    This projector has built-in smart TV features, while the average projector does not. 43.7% of projectors have built-in smart TV features.
  • Smartphone app support
    This projector supports smartphone app control, while the average projector does not. 35.2% of projectors support smartphone app control.
    Mi Home app.
  • Supports frame interpolation
    This projector supports frame interpolation, while the average projector does not. 37.1% of projectors support frame interpolation.
  • Built-in stereo speakers
    This projector has stereo speakers, while the average projector does not. 48.9% of projectors have stereo speakers.
  • Built-in Chromecast
    This projector supports built-in Chromecast, while the average projector does not. 26% of projectors support built-in Chromecast.
    Google Cast supported.
  • 4.81x cheaper
    Xiaomi Redmi Projector 4 is cheaper than the average projector (£160 vs £770).
    £160 vs £770
  • 17.2% better value for money
    Xiaomi Redmi Projector 4 has a higher value-for-money score than the average projector (7.63 vs 6.5).
    7.63 vs 6.51
  • Advanced focus control
    This projector offers Advanced focus control than the average projector (auto-focus vs manual). The average projector uses manual focus control.
    auto-focus vs manual
  • Motorized focus
    This projector supports motorized focus, while the average projector does not. 47.2% of projectors support motorized focus.
  • Supports ALLM
    This projector supports ALLM, while the average projector does not. 17.2% of projectors support ALLM.
  • Supports frame interpolation
    This projector supports frame interpolation, while the average projector does not. 37.1% of projectors support frame interpolation.
  • Supports HDMI ARC
    This projector supports HDMI ARC, while the average projector does not. 36% of projectors support HDMI ARC.
  • Built-in Chromecast
    This projector supports built-in Chromecast, while the average projector does not. 26% of projectors support built-in Chromecast.
    Google Cast supported.
  • Supports Miracast
    This projector supports Miracast, while the average projector does not. 45.1% of projectors support Miracast.
  • Built-in smart TV features
    This projector has built-in smart TV features, while the average projector does not. 43.7% of projectors have built-in smart TV features.
  • Smartphone app support
    This projector supports smartphone app control, while the average projector does not. 35.2% of projectors support smartphone app control.
    Mi Home app.
  • Built-in stereo speakers
    This projector has stereo speakers, while the average projector does not. 48.9% of projectors have stereo speakers.
  • Supports voice commands
    This projector supports voice commands, while the average projector does not. 36.3% of projectors support voice commands.
    Far-field voice control.
  • 170 W lower power use
    This projector uses less power than the average projector (65 W vs 235 W). The average projector uses 235 W of power.
    65 W vs 235 W
  • 2 dB quieter operation
    This projector has a lower audible noise than the average projector (28 dB vs 30 dB). The average projector has 30 dB of audible noise.
    28 dB vs 30 dB
  • 51.6% lighter weight
    This projector is lighter than the average projector (1.5 kg vs 3.1 kg). The average projector weighs 3.1 kg.
    1.5 kg vs 3.1 kg
  • 175 mm narrower width
    This projector is narrower than the average projector (125 mm vs 300 mm). The average projector has a width of 300 mm.
    125 mm vs 300 mm
  • 2 bit lower color depth
    This projector 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
    This projector has fewer HDMI ports than the average projector (1 vs 2). The average projector has 2 HDMI ports.
    1 vs 2
  • 126.5 inch smaller image size
    This projector has a lower projection size than the average projector (120 inch vs 246.5 inch). The average projector has 246.5 inch of projection size.
    120 inch vs 246.5 inch
  • Basic light source
    This projector has Basic light source than the average projector (led vs laser). The average projector uses a laser light source.
    led vs laser
  • 29.4% lower refresh rate
    This projector has a lower refresh rate than the average projector (60 Hz vs 85 Hz). The average projector has 85 Hz of refresh rate.
    60 Hz vs 85 Hz
  • Limited HDMI format
    This projector supports a less capable max HDMI input format than the average projector (4K/60Hz vs 4K/120Hz). The average projector supports a max HDMI input format of 4K/120Hz.
    4K/60Hz vs 4K/120Hz
  • No 3D support
    This projector does not support 3D playback, while the average projector does. 55% of projectors support 3D playback.
  • 15 degrees less vertical keystone correction
    This projector 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.
    15 degrees vs 30 degrees
  • 4.87x less popular
    Xiaomi Redmi Projector 4 has a lower popularity than the average projector (1 vs 4.9).
    1 vs 4.87
  • 2 bit lower color depth
    This projector 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
  • 29.4% lower refresh rate
    This projector has a lower refresh rate than the average projector (60 Hz vs 85 Hz). The average projector has 85 Hz of refresh rate.
    60 Hz vs 85 Hz
  • No 3D support
    This projector does not support 3D playback, while the average projector does. 55% of projectors support 3D playback.
  • No 3D glasses support
    This projector does not support 3D glasses, while the average projector does. 55.1% of projectors support 3D glasses.
  • 126.5 inch smaller image size
    This projector has a lower projection size than the average projector (120 inch vs 246.5 inch). The average projector has 246.5 inch of projection size.
    120 inch vs 246.5 inch
  • 15 degrees less vertical keystone correction
    This projector 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.
    15 degrees vs 30 degrees
  • 15 degrees less horizontal keystone correction
    This projector offers less horizontal keystone correction than the average projector (15 degrees degrees vs 30 degrees degrees). The average projector offers 30 degrees degrees of horizontal keystone correction.
    15 degrees vs 30 degrees
  • Limited HDMI format
    This projector supports a less capable max HDMI input format than the average projector (4K/60Hz vs 4K/120Hz). The average projector supports a max HDMI input format of 4K/120Hz.
    4K/60Hz vs 4K/120Hz
  • 15 ms higher input lag
    This projector has a higher input lag than the average projector (42 ms vs 27 ms). The average projector has 27 ms of input lag.
    In Game Mode.
    42 ms vs 27 ms
  • 1 fewer HDMI ports
    This projector has fewer HDMI ports than the average projector (1 vs 2). The average projector has 2 HDMI ports.
    1 vs 2
  • No RS-232 control
    This projector does not support RS-232 control, while the average projector does. 52.1% of projectors support RS-232 control.
  • Basic light source
    This projector has Basic light source than the average projector (led vs laser). The average projector uses a laser light source.
    led vs laser
  • 77.8 mm taller body
    This projector is taller than the average projector (204.8 mm vs 127 mm). The average projector has a height of 127 mm.
    204.8 mm vs 127 mm

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Overview video

Third-party reviews

What customers like about Xiaomi Redmi Projector 4

  • Delivers true native 1080p resolution for sharp image clarity.
  • Seamlessly integrates with the Xiaomi Home app for automation and smart control.
  • Features fast and reliable built-in auto-keystone and auto-focus correction.
  • Operates quietly with a fan noise level often measured under 28dB.
  • Offers a high-value entry point for a cinematic experience in small spaces.
  • Supports HDR10 decoding for enhanced contrast in dark scenes.

What customers don't like about Xiaomi Redmi Projector 4

  • Experiencing noticeable input lag (approx. 42ms), making it unsuitable for competitive gaming.
  • Lacks native 4K output, which some users may miss at its price point.
  • Potential software difficulty for international users if the system remains focused on the Chinese market.
  • Brightness is sufficient for dark rooms but easily washed out by ambient daylight.
  • Does not support HDMI 2.1 features like 120Hz or VRR for next-gen consoles.

Verdict

The Xiaomi Redmi Projector 4 is a compact, smart home cinema solution offering native 1080p Full HD resolution and a peak brightness of 360 CVIA lumens. Its key characteristics include a MediaTek MT9660 processor, 2GB of RAM, 32GB of internal storage, and the Xiaomi HyperOS Connect platform for seamless smart home integration. Key advantages are its advanced image correction features, such as ToF-based autofocus and omnidirectional automatic keystone correction, alongside MEMC motion smoothing for fluid video playback and dual 5W full-range speakers. On the downside, its brightness may struggle in well-lit rooms, and as a primarily China-market release, it often lacks native support for international streaming services like Netflix without workarounds.

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