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ASUS P3B Review | 85 Data compared

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  • Avg. price in UK: ~£500
  • Avg. price in US: ~$600
  • ANSI lumens: 800
  • Native panel resolution: 1280x800
  • Throw ratio: 0.8:1

ASUS P3B review. Compare 85 technical specifications and user reviews to see how it ranks among projectors and if it is worth buying.

4.8

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%

4.5

Technical Score

10.0%

7.3

User score

Poor
4.5

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%

4.7

Image Quality

22.0%

4.5

Projection & Lens

12.0%

4.1

HDMI & Gaming

10.0%

3.9

Audio & Features

8.0%

2.8

Connectivity

6.0%

6.9

Design & Power

Poor
7.3

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%

9.6

User reviews

30.0%

2.1

Popularity

User score:
United Kingdom
amazon
4.8
(7)

(Reviews last updated: June 2026)

Very good
  • 6.9
    Gaming

    Score components:

    35.0%

    ?

    Input lag

    25.0%

    10

    Refresh rate

    20.0%

    7.2

    Output Resolution

    10.0%

    1.0

    HDR10 support

    10.0%

    1.0

    Audio output power

  • 5.6
    Portable

    Score components:

    35.0%

    10

    Weight

    20.0%

    ?

    Has A Built-In Speaker

    15.0%

    1.0

    Bluetooth connectivity

    15.0%

    1.0

    Wi-Fi connectivity

    15.0%

    1.0

    Smart TV features

  • 3.6
    Home theatre

    Score components:

    30.0%

    7.2

    Output Resolution

    25.0%

    1.0

    HDR10 support

    20.0%

    1.0

    Dolby Vision support

    15.0%

    2.5

    ANSI lumens

    10.0%

    5.8

    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 ASUS P3B is an ultra-portable LED projector featuring a native WXGA (1280 x 800) resolution, an 800-lumen light source, and a 100,000:1 contrast ratio within a compact 750g frame roughly the size of a CD case. Main characteristics include a 30,000-hour lamp life, a 12,000mAh built-in battery providing up to 3 hours of wireless projection, and a short-throw lens capable of projecting a 200-inch image from just 3.4 meters away. Key pros are its extreme mobility, ability to double as a power bank for mobile devices, and versatile connectivity including HDMI/MHL, VGA, and a microSD card slot for PC-free presentations. Notable cons include a significant drop in brightness to 300 lumens when running on battery power, reported issues with uneven focus across the entire image, and a cooling fan that can be noisy during plugged-in operation.

Technical Specifications of ASUS P3B

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%

4.7

Image Quality

22.0%

4.5

Projection & Lens

12.0%

4.1

HDMI & Gaming

10.0%

3.9

Audio & Features

8.0%

2.8

Connectivity

6.0%

6.9

Design & Power

4.5
ASUS P3B has a technical score of 4.47 points, which is lower than 94.9% 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%

9.6

User reviews

30.0%

2.1

Popularity

User score:
United Kingdom
amazon
4.8
(7)

(Reviews last updated: June 2026)

7.3
ASUS P3B has a user score of 7.34 points, which is lower than 73.6% 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.
2.1
ASUS P3B has a popularity of 2.1 points, which is higher than 50.7% 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%

4.8

Overall score

40.0%

7.9

Price

5.7
ASUS P3B has a quality-to-price ratio of 5.7 points, which is lower than 63.3% 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

800
ASUS P3B reaches 800 ANSI lumens, dimmer than 71.8% of projectors and equal to 1.4% of projectors.
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

1,000:1
ASUS P3B has a contrast ratio of 1000:1, lower than 85.5% of projectors and equal to 7.8% of projectors.
Dynamic 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

1280x800
ASUS P3B uses a native resolution of 1280x800, lower than 74.6% of projectors and equal to 7.8% 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

1280x800
ASUS P3B supports output resolution up to 1280x800, lower than 75.9% of projectors and equal to 7.9% of projectors.
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

DLP
Show more
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

0.8:1
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

0.43 m
ASUS P3B needs a minimum throw distance of 0.43 m, shorter than 92.4% of projectors and equal to 0.8% 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

200 inch
ASUS P3B supports projection sizes up to 200 inch, smaller than 51.3% of projectors and equal to 12.7% 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
ASUS P3B does not have motorized zoom. 16.3% of projectors have motorized zoom.
Show more
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
ASUS P3B 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
ASUS P3B 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

1.3
ASUS P3B supports HDMI 1.3, older than 88.8% of projectors and equal to 7.9% of projectors.
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
ASUS P3B 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
ASUS P3B 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
ASUS P3B 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

no
ASUS P3B does not support Bluetooth. 50% 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

N/A
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
ASUS P3B 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

proprietary
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

yes
ASUS P3B comes with a dedicated smartphone app. 64.5% of projectors come with a dedicated smartphone app.
ASUS Wi-Fi Projection 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
ASUS P3B 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
ASUS P3B 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
ASUS P3B 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

30,000 hours
ASUS P3B offers lamp life of 30000 hours, shorter than 68.9% of projectors and equal to 25.4% of projectors.
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

30,000 hours
ASUS P3B offers eco-mode lamp life of 30000 hours, shorter than 59.6% of projectors and equal to 35.6% of projectors.
Eco mode rating.
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

65 W
ASUS P3B uses 65 W of power, less than 80.8% of projectors and equal to 6.4% of projectors.
Maximum power-on rating.
Show more

ASUS P3B vs the average projector

  • 0.63 m shorter throw distance
    ASUS P3B has a lower throw distance than the average projector (0.4 m vs 1.06 m). The average projector has 1.06 m of 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

    ASUS P3B has a lower throw distance than the average projector (0.4 m vs 1.06 m). The average projector has 1.06 m of throw distance.0.43 m vs 1.06 m
  • Smartphone app support
    ASUS P3B supports smartphone app control, while the average projector does not. 35.6% of projectors support smartphone app control.
    ASUS Wi-Fi Projection 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

    ASUS P3B supports smartphone app control, while the average projector does not. 35.6% of projectors support smartphone app control.
  • Wider color gamut
    ASUS P3B has a higher color gamut coverage than the average projector (100% 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

    ASUS P3B has a higher color gamut coverage than the average projector (100% NTSC % vs 99% Rec.709 %). The average projector has 99% Rec.709 % of color gamut coverage.100% NTSC % vs 99% Rec.709 %
  • 41.2% higher refresh rate
    ASUS P3B has a higher refresh rate than the average projector (120 Hz vs 85 Hz). The average projector has 85 Hz of refresh rate.
    What it is: Number of screen refreshes per second, measured in hertz.
    When it matters: When motion clarity matters for gaming, sports, or fast-moving video instead of slower cinematic content only.

    Importance: MEDIUM

    ASUS P3B has a higher refresh rate than the average projector (120 Hz vs 85 Hz). The average projector has 85 Hz of refresh rate.120 Hz vs 85 Hz
  • 10,000 hours longer lamp life
    ASUS P3B has a higher lamp life than the average projector (30,000 hours vs 20,000 hours). The average projector has 20,000 hours of 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

    ASUS P3B has a higher lamp life than the average projector (30,000 hours vs 20,000 hours). The average projector has 20,000 hours of lamp life.30000 hours vs 20000 hours
  • 1 more USB ports
    ASUS P3B has more USB ports than the average projector (2 vs 1). The average projector has 1 USB ports.
    What it is: Number of available USB ports.
    When it matters: When the projector needs to power accessories, read media, or support extra peripherals directly.

    Importance: LOW

    ASUS P3B has more USB ports than the average projector (2 vs 1). The average projector has 1 USB ports.2 vs 1
  • Supports Miracast
    ASUS P3B supports Miracast, while the average projector does not. 45.1% of projectors support Miracast.
    What it is: Support for Miracast wireless screen mirroring.
    When it matters: When you want quick wireless mirroring from supported Windows or Android devices without extra streaming hardware.

    Importance: LOW

    ASUS P3B supports Miracast, while the average projector does not. 45.1% of projectors support Miracast.
  • 75.8% lighter weight
    ASUS P3B is lighter than the average projector (0.8 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

    ASUS P3B is lighter than the average projector (0.8 kg vs 3.1 kg). The average projector weighs 3.1 kg.0.75 kg vs 3.1 kg
  • Wider color gamut
    ASUS P3B has a higher color gamut coverage than the average projector (100% NTSC % vs 99% Rec.709 %). The average projector has 99% Rec.709 % of color gamut coverage.
  • 41.2% higher refresh rate
    ASUS P3B has a higher refresh rate than the average projector (120 Hz vs 85 Hz). The average projector has 85 Hz of refresh rate.
  • 0.63 m shorter throw distance
    ASUS P3B has a lower throw distance than the average projector (0.4 m vs 1.06 m). The average projector has 1.06 m of throw distance.
  • 1 more USB ports
    ASUS P3B has more USB ports than the average projector (2 vs 1). The average projector has 1 USB ports.
  • Supports Miracast
    ASUS P3B supports Miracast, while the average projector does not. 45.1% of projectors support Miracast.
  • Includes memory card slot
    ASUS P3B includes an external memory slot, while the average projector does not. 34.9% of projectors include an external memory slot.
  • Includes VGA
    ASUS P3B includes VGA input, while the average projector does not. 43.1% of projectors include VGA input.
  • Smartphone app support
    ASUS P3B supports smartphone app control, while the average projector does not. 35.6% of projectors support smartphone app control.
  • 10,000 hours longer lamp life
    ASUS P3B has a higher lamp life than the average projector (30,000 hours vs 20,000 hours). The average projector has 20,000 hours of lamp life.
  • 75.8% lighter weight
    ASUS P3B is lighter than the average projector (0.8 kg vs 3.1 kg). The average projector weighs 3.1 kg.
  • 10,000 hours longer eco lamp life
    ASUS P3B has a higher lamp life in eco mode than the average projector (30,000 hours vs 20,000 hours). The average projector has 20,000 hours of lamp life in eco mode.
  • 168.9 W lower power use
    ASUS P3B uses less power than the average projector (65 W vs 233.9 W). The average projector uses 233.9 W of power.
  • 146 mm narrower width
    ASUS P3B is narrower than the average projector (153.5 mm vs 299.5 mm). The average projector has a width of 299.5 mm.
  • 84 mm lower height
    ASUS P3B is shorter than the average projector (43 mm vs 127 mm). The average projector has a height of 127 mm.

Total
Image Quality
Projection & Lens
Connectivity
Audio & Features
Design & Power
  • No HDR10 support
    ASUS P3B does not support HDR10, while the average projector does. 56.3% of projectors support HDR10.
  • Lower contrast ratio
    ASUS P3B has a lower contrast ratio than the average projector (1000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.
    Dynamic contrast ratio.
  • 63.6% dimmer image
    ASUS P3B has lower ANSI lumens than the average projector (800 vs 2,200). The average projector has 2,200 ANSI lumens.
  • 2 bit lower color depth
    ASUS P3B has a lower color depth than the average projector (8 bit vs 10 bit). The average projector has 10 bit of color depth.
  • Low native resolution
    ASUS P3B has a lower native panel resolution than the average projector (1280x800 vs 1920x1080). The average projector has a native panel resolution of 1920x1080.
  • Lower output resolution
    ASUS P3B supports a lower output resolution than the average projector (1280x800 vs 1920x1080). The average projector outputs at 1920x1080 resolution.
  • 0.02 inch smaller DMD chip
    ASUS P3B has a lower DMD chip size than the average projector (0.5 inch vs 0.47 inch). The average projector has 0.47 inch of DMD chip size.
  • 50 inch smaller image size
    ASUS P3B has a lower projection size than the average projector (200 inch vs 250 inch). The average projector has 250 inch of projection size.
  • Limited HDMI format
    ASUS P3B 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.
  • Older HDMI version
    ASUS P3B has Old HDMI standard than the average projector (1.3 vs 2.0). The average projector supports HDMI 2.0.
  • 43.3% lower HDMI bandwidth
    ASUS P3B 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
    ASUS P3B has Old HDCP version than the average projector (1.4 vs 2.2). The average projector supports HDCP 2.2.
  • 1 fewer HDMI ports
    ASUS P3B has fewer HDMI ports than the average projector (1 vs 2). The average projector has 2 HDMI ports.
  • No Wi-Fi support
    ASUS P3B does not support Wi-Fi, while the average projector does. 52.6% of projectors support Wi-Fi.
  • No RS-232 control
    ASUS P3B does not support RS-232 control, while the average projector does. 52.1% of projectors support RS-232 control.
  • 80% weaker audio output
    ASUS P3B has a lower audio output power than the average projector (2 W vs 10 W). The average projector has 10 W of audio output power.
  • No sleep timer
    ASUS P3B does not have a sleep timer, while the average projector does. 80.8% of projectors have a sleep timer.
  • Basic light source
    ASUS P3B has Basic light source than the average projector (led vs laser). The average projector uses a laser light source.
  • 2 dB louder operation
    ASUS P3B has a higher audible noise than the average projector (32 dB vs 30 dB). The average projector has 30 dB of audible noise.
  • 5 older model
    ASUS P3B was released earlier than the average projector (2,016 vs 2,021). The average projector was released in 2,021.
    February 2016
  • No HDR10 support
    ASUS P3B 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

    ASUS P3B does not support HDR10, while the average projector does. 56.3% of projectors support HDR10.
  • Limited HDMI format
    ASUS P3B 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

    ASUS P3B 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
  • Lower contrast ratio
    ASUS P3B has a lower contrast ratio than the average projector (1000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.
    Dynamic 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

    ASUS P3B has a lower contrast ratio than the average projector (1000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.1,000:1 vs 10,000:1
  • 63.6% dimmer image
    ASUS P3B has lower ANSI lumens than the average projector (800 vs 2,200). The average projector has 2,200 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

    ASUS P3B has lower ANSI lumens than the average projector (800 vs 2,200). The average projector has 2,200 ANSI lumens.800 vs 2,200
  • 2 bit lower color depth
    ASUS P3B 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

    ASUS P3B 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
    ASUS P3B 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

    ASUS P3B has fewer HDMI ports than the average projector (1 vs 2). The average projector has 2 HDMI ports.1 vs 2
  • Older HDMI version
    ASUS P3B has Old HDMI standard than the average projector (1.3 vs 2.0). The average projector supports HDMI 2.0.
    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

    ASUS P3B has Old HDMI standard than the average projector (1.3 vs 2.0). The average projector supports HDMI 2.0.1.3 vs 2.0
  • Basic light source
    ASUS P3B 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

    ASUS P3B has Basic light source than the average projector (led vs laser). The average projector uses a laser light source.led vs laser
Total
Overall
Image Quality
Projection & Lens
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Audio & Features
Design & Power

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Third-party reviews

United Kingdom
amazon
4.8
7 Reviews

(Reviews last updated: June 2026)

What customers like about ASUS P3B?

  • Compact and lightweight design (approx. 750g), roughly the size of a CD case
  • Short-throw technology allows for large images (up to 200 inches) from short distances
  • Built-in 12,000mAh battery provides up to 3 hours of cable-free use and functions as a power bank
  • Versatile connectivity options including HDMI, MHL, VGA, microSD, and USB ports
  • Bright 800-lumen output for its size, providing sharp WXGA (1280x800) visuals in low light
  • Long-lasting LED light source with a 30,000-hour lifespan

What customers dislike about ASUS P3B?

  • Remote control is often cited as small, cheap-feeling, and sometimes unresponsive
  • In-built speakers are relatively quiet and may not fill larger rooms
  • Image quality and brightness can drop noticeably when running on battery power versus AC power
  • Limited local media playback functionality, such as difficulty with specific video formats (Cinemascope) or external hard drives
  • Wireless connectivity and networking features can be finicky or require additional dongles to work reliably
  • User interface and menu systems are not considered very user-friendly

Expert reviews

G
gadgetsnow.indiatimes.com
22/09/2016
Asus P3B Portable LED Projector review - Ideal companion for your living room

The Asus P3B is a highly portable LED projector suited for small rooms and business use, offering easy setup, automatic keystone correction, and 12,000mAh battery-powered projection for up to 3 hours. It features short-throw capabilities, projecting up to 200 inches, and includes decent audio with Asus SonicMaster technology. However, optimal image quality requires a dark...Read more

P
power.sil.org
10/04/2019
Asus P3B LED Projector evaluation

The Asus P3B is a portable Mini LED projector featuring a native resolution of 1280 x 800, an 800 ANSI lumen brightness rating, and a built-in 45Wh battery. When plugged into wall power, it delivers a very nice image with clear, readable text, making it highly efficient (25.8 ANSI Lumens/watt) and well-suited for solar-powered setups. It boasts a hefty, impressive build quality with...Read more

F
financialexpress.com
21/07/2016
ASUS P3B projector: Pocket-sized powerhouse for a perfect home thrill

The ASUS P3B is a 750g, ultra-short-throw LED projector with 800-lumen brightness, 1280x800 resolution, and a 12,000mAh battery providing up to 3 hours of portable, PC-free viewing. It offers flexible installation via automatic keystone correction and features built-in SonicMaster audio, acting as a versatile solution for on-the-go media consumption. However, performance is limited...Read more

H
hifitest.de
12/04/2026
Projector Technical Data - Asus P3B - Review

The Asus P3B is a highly portable LED and DLP pocket projector that serves as a lightweight, miniature powerhouse for on-the-go presentations and entertainment. Its standout pros include an ultra-short-throw lens with an 0.8:1 projection ratio, allowing users to project a massive 200-inch display from just 3.44 meters away. It delivers a native WXGA resolution (1280 x 800 pixels)...Read more

(Translated)Show original
L
lesnumeriques.com
03/07/2017
Asus P3B Review: A 720p LED Short-Throw Pico Projector

The Les Numériques review of the Asus P3B evaluates this portable mini LED projector as a 3 out of 5-star product tailored more for professional presentations than dedicated home cinema use. Its standout features include an ultra-short-throw lens, which allows it to project a large 2-meter base image from just 1.5 meters away, making it convenient for tight spaces like coffee...Read more

(Translated)Show original
F
forum.lesnumeriques.com
03/07/2017
[Official Thread] Projector Review: Asus P3B

The Asus P3B is a highly capable and ultra-compact LED picoprojecteur that positions itself as a strong competitor to rival models like the Qumi Q3 Plus and Philips PicoPix PPX4935. Tested and reviewed by Les Numériques, the device's absolute standout feature is its short-throw focal lens, which allows it to project large images from a very close distance to the wall. It is highly...Read more

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P
profesionalreview.com
20/01/2016
Asus P3B Review

Asus P3B Review Summary Despite its functional design, the proyector falls short in high-definition multimedia entertainment due to its limited 1280x800 native resolution, making the lack of full 1080p support a notable drawback for high-quality video playback. While its 800 lumens brightness is a strong milestone for Asus's compact lineup, it is insufficient for well-lit...Read more

(Translated)Show original

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