OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Projectors Methodology v3.0
Projectors Methodology v3.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Projectors Methodology v3.0: the technical score from the specifications is the base, and independent expert and video reviews (up to ±0.5 points), owner opinions (up to ±0.3) and best-of lists (up to +0.3) move it up or down.
Explore Projectors Methodology v3.0

BenQ LH830ST review: 86 specs compared

Avg. price:~£1,430Native panel resolution:1920x1080ANSI lumens:4000Throw ratio:0.496:1Lamp life:20000 hours

BenQ LH830ST Review: Compare 86 technical specifications to see how this product ranks in the Projectors category and whether it is worth buying.

BenQ LH830ST
7.5/10

Overall score

Score
7.5/ 10
✕
What it is
Our main score for this model, 1–10. It combines specs, best-of lists, expert reviews and owners.
How we count it
Parts: Technical score 35%, List score 30%, Reviews score 25%, Sentiment score 10%
Marks: Each part gets a mark out of 10. For reviews, lists and owners, a typical model in this category gets about 8 and the best one gets 10.
No data yet: A part with no data shows "?". It counts as the mark of a weaker model in this category (4 in 5 models with data score higher). This way, models with reviews, lists and owners usually come out ahead.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 76% of models
Score components

35%

7.5

Technical score

30%

?

List scoreNot enough data yet, so we use 7.5, the mark of a weaker model in this category

25%

?

Reviews scoreNot enough data yet, so we use 7.8, the mark of a weaker model in this category

10%

?

Sentiment scoreNot enough data yet, so we use 6.8, the mark of a weaker model in this category

â–²Better than 76% of projectors
6.1

Value for money

Value for money
6.1/ 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
â–¼ Worse than 76% of models
Score components

70%

7.5

Overall score

30%

3.0

Price

â–¼Worse than 76%
7.5

Technical score

Technical score
7.5/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 35% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 86% of models
Score components

42%

8.5

Image Quality

22%

6.5

Projection & Lens

12%

7.0

HDMI & Gaming

10%

6.0

Audio & Features

8%

7.0

Connectivity

6%

8.4

Design & Power

â–²Better than 86%
?

Reviews score

Reviews score
✕
What it is
Average grade from independent test sites, magazines and video reviewers, 1–10.
How we count it
Grades: Each review's own score is converted to 1–10; without one, we grade the review ourselves. Big test sites count more, short reviews half as much as full tests. A video review counts half.
Score: The average grade is 80% of the review mark; the number of reviews is the other 20% (1 review = 5, the typical number in this category = 8, the most-reviewed model = 10).
Enough data: With few reviews, the average grade is pulled toward the typical grade of this category. No reviews yet: 7.8 for now.
Share: Reviews count 25% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
Grades by review (0)
We have not found an independent test of this model yet. Until we do, its review part counts as 7.8.
User ratings collected online are not part of this score.
No expert tests yet
?

List score

List score
7.5/ 10
✕
What it is
How often independent test sites, magazines and video reviewers put this model in their best-of lists for this category.
How we count it
Points: The model in the most lists of this category gets 10; the others get 8 to 10 in proportion. In no list yet: 7.5. Lists count 30% of the overall score.
Enough data: Every list counts, even a single one. With fewer than 5 best-of lists in the category, this part is left out.
Lists with this model (0)
Not in any best-of list yet, so this part counts as 7.5. Models in a list get 8 to 10.
Not in any best-of list yet
  • benq-lh830st
benq-lh830st
Where to buy
    N/A~ £1,430
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
Loading category ranking...

Technical Specifications of projector BenQ LH830ST

Technical score
Technical score
7.5/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 35% of the overall score.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 86% of models
Score components:

42%

8.5

Image Quality

22%

6.5

Projection & Lens

12%

7.0

HDMI & Gaming

10%

6.0

Audio & Features

8%

7.0

Connectivity

6%

8.4

Design & Power

7.5
Reviews score
7.8
List score
?
Value for money
Value for money
6.1/ 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
â–¼ Worse than 76% of models
Score components:

70%

7.5

Overall score

30%

3.0

Price

6.1
ANSI lumens
4,000
Market range: <280 – >4k
This projector reaches 4,000 ANSI lumens, brighter than 83.9% of projectors and equal to 6.6% of projectors.
Contrast ratio
3,000,000:1
This projector has a contrast ratio of 3000000:1, higher than 93.1% of projectors and equal to 4.5% of projectors.
Native panel resolution
1920x1080
This projector uses a native resolution of 1920x1080, higher than 27% of projectors and equal to 59.2% of projectors.
Output resolution
1920x1080
This projector supports output resolution up to 1920x1080, higher than 25.9% of projectors and equal to 42.3% of projectors.
Projection technology
DLP
Show more
Throw ratio
0.496:1
Min throw distance
0.8 m
Market range: <0.5 m – >1.651 m
This projector needs a minimum throw distance of 0.8 m, shorter than 69.8% of projectors and equal to 4.9% of projectors.
Max projection size
300 inch
Market range: <120 inch – >301 inch
This projector supports projection sizes up to 300 inch, larger than 51.5% of projectors and equal to 38% of projectors.
Zoom ratio
N/A
Motorized zoom
no
This projector does not have motorised zoom. 14.8% of projectors offer this.
Show more
Input lag
16.7 ms
Market range: <8 ms – >68 ms
This projector has input lag of 16.7 ms, lower than 68.7% of projectors and equal to 1.4% of projectors.
At 1080P/60Hz.
Auto low latency mode (ALLM)
no
This projector does not switch to low-latency mode automatically. 16.1% of projectors offer this.
Variable refresh rate (VRR)
no
This projector does not support variable refresh rate. 1.8% of projectors offer this.
HDMI version
2
This projector supports HDMI 2, more modern than 46.1% of projectors and equal to 35.9% of projectors.
Max HDMI bandwidth
18 Gbps
Market range: <10.2 Gbps – >48 Gbps
This projector supports HDMI bandwidth up to 18 Gbps, higher than 48.9% of projectors and equal to 39.7% of projectors.
Show more
N. of HDMI ports
2
Market range: <1 – >2
This projector has 2 HDMI port/s, more than 45.9% of projectors and equal to 47.3% of projectors.
Wi-Fi connectivity
no
This projector does not connect to Wi-Fi networks. 53.4% of projectors offer this.
Wi-Fi version
N/A
Bluetooth connectivity
?
Bluetooth version
N/A
Show more
Smart TV features
?
Operating system
none
Android OS
no
This projector does not run Android OS. 19.1% of projectors run Android OS.
Dedicated smartphone app
no
This projector does not come with a dedicated smartphone app. 36.8% of projectors come with a dedicated smartphone app.
Remote control
yes
This projector includes a remote control. 1.5% of projectors offer this.
Show more
Light source type
laser
This projector uses laser light source technology, more advanced than 75.4% of projectors and equal to 24.6% of projectors.
Laser light source
yes
This projector has a laser light source. 73.3% of projectors offer this.
Lamp life
20,000 hours
Market range: <3.5k hours – >30k hours
This projector offers lamp life of 20,000 hours, shorter than 35.2% of projectors and equal to 25.8% of projectors.
Lamp life (eco mode)
30,000 hours
Market range: <5k hours – >30k hours
This projector offers eco-mode lamp life of 30,000 hours, shorter than 64% of projectors and equal to 31.9% of projectors.
Operating power consumption
230 W
Market range: <57 W – >390 W
This projector uses 230 W of power, less than 49.5% of projectors and equal to 0.8% of projectors.
Normal mode power draw.
Show more

BenQ LH830ST vs the average projector

246810TotalImage QualityProjection & LensHDMI & GamingConnectivityAudio & FeaturesDesign & Power
  • 81.8% brighter image
    This projector has higher ANSI lumens than the average projector (4,000 vs 2,200). The average projector has 2,200 ANSI lumens.
    4,000 vs 2,200
  • Higher contrast ratio
    This projector has a higher contrast ratio than the average projector (3000000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.
    3,000,000:1 vs 10,000:1
  • Supports curved-surface correction
    This projector corrects warping on curved surfaces, while the average projector does not. 5.5% of projectors offer this.
    Supports warping patterns up to 24x15.
  • Built-in Chromecast
    This projector supports built-in Chromecast, while the average projector does not. 24.9% of projectors support built-in Chromecast.
  • Laser light source
    This projector has a laser light source, while the average projector does not. 26.7% of projectors have one.
  • Has S/PDIF output
    This projector supports S/PDIF output, while the average projector does not. 16.6% of projectors support S/PDIF output.
  • 0.18 inch larger DMD chip
    This projector has a higher DMD chip size than the average projector (0.7 inch vs 0.47 inch). The average projector has 0.47 inch of DMD chip size.
    0.65 inch vs 0.47 inch
  • 41.2% higher refresh rate
    This projector 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
  • 81.8% brighter image
    This projector has higher ANSI lumens than the average projector (4,000 vs 2,200). The average projector has 2,200 ANSI lumens.
    4,000 vs 2,200
  • Higher contrast ratio
    This projector has a higher contrast ratio than the average projector (3000000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.
    3,000,000:1 vs 10,000:1
  • 0.18 inch larger DMD chip
    This projector has a higher DMD chip size than the average projector (0.7 inch vs 0.47 inch). The average projector has 0.47 inch of DMD chip size.
    0.65 inch vs 0.47 inch
  • 41.2% higher refresh rate
    This projector 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
  • Supports HLG
    This projector supports HLG, while the average projector does not. 41.2% of projectors support HLG.
  • 4 more recent release
    This projector was released more recently than the average projector (2025 vs 2021). The average projector was released in 2021.
    September 2025
    2025 vs 2021
  • Supports curved-surface correction
    This projector corrects warping on curved surfaces, while the average projector does not. 5.5% of projectors offer this.
    Supports warping patterns up to 24x15.
  • 50 inch larger image size
    This projector has a higher projection size than the average projector (300 inch vs 250 inch). The average projector has 250 inch of projection size.
    300 inch vs 250 inch
  • 0.21 m shorter throw distance
    This projector has a lower throw distance than the average projector (0.8 m vs 1 m). The average projector has 1.0055 m of throw distance.
    0.8 m vs 1.0055 m
  • 10.3 ms lower input lag
    This projector has a lower input lag than the average projector (16.7 ms vs 27 ms). The average projector has 27 ms of input lag.
    At 1080P/60Hz.
    16.7 ms vs 27 ms
  • Built-in Chromecast
    This projector supports built-in Chromecast, while the average projector does not. 24.9% of projectors support built-in Chromecast.
  • Has S/PDIF output
    This projector supports S/PDIF output, while the average projector does not. 16.6% of projectors support S/PDIF output.
  • 1 more RJ45 ports
    This projector has more RJ45 ports than the average projector (1 vs 0). The average projector has 0 RJ45 ports.
    1 vs 0
  • 1 more USB ports
    This projector has more USB ports than the average projector (2 vs 1). The average projector has 1 USB ports.
    2 vs 1
  • 50% stronger audio output
    This projector has a higher audio output power than the average projector (15 W vs 10 W). The average projector has 10 W of audio output power.
    15 W vs 10 W
  • Laser light source
    This projector has a laser light source, while the average projector does not. 26.7% of projectors have one.
  • 4 dB quieter eco mode
    This projector has a lower audible noise in eco mode than the average projector (24 dB vs 28 dB). The average projector has 28 dB of audible noise in eco mode.
    24 dB vs 28 dB
  • 10,000 hours longer eco lamp life
    This projector 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.
    30,000 hours vs 20,000 hours
  • No Wi-Fi connectivity
    This projector does not connect to Wi-Fi networks, while the average projector does. 53.4% of projectors offer this.
  • 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 sleep timer
    This projector does not have a sleep timer, while the average projector does. 82.4% of projectors have one.
  • Narrower color gamut
    This projector has a lower color gamut coverage than the average projector (93% Rec.709 % vs 99% Rec.709 %). The average projector has 99% Rec.709 % of color gamut coverage.
    93% Rec.709 % vs 99% Rec.709 %
  • 2.17x more expensive
    BenQ LH830ST is more expensive than the average projector (£1,430 vs £660).
    £1,430 vs £660
  • 13.1% worse value for money
    BenQ LH830ST has a lower value-for-money score than the average projector (6.14 vs 6.9).
    6.14 vs 6.95
  • 2.17x more expensive
    BenQ LH830ST is more expensive than the average projector (£1,430 vs £660).
    £1,430 vs £660
  • 13.1% worse value for money
    BenQ LH830ST has a lower value-for-money score than the average projector (6.14 vs 6.9).
    6.14 vs 6.95
  • Narrower color gamut
    This projector has a lower color gamut coverage than the average projector (93% Rec.709 % vs 99% Rec.709 %). The average projector has 99% Rec.709 % of color gamut coverage.
    93% Rec.709 % vs 99% Rec.709 %
  • 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 Wi-Fi connectivity
    This projector does not connect to Wi-Fi networks, while the average projector does. 53.4% of projectors offer this.
  • No sleep timer
    This projector does not have a sleep timer, while the average projector does. 82.4% of projectors have one.

Third-party reviews

What customers like about BenQ LH830ST

  • High 4,000 ANSI lumen brightness suitable for rooms with ambient light.
  • Short 0.496 throw ratio allows for large images in compact spaces.
  • Long-lasting laser light source with up to 30,000 hours in Eco mode.
  • IP6X dust-sealed engine provides durability in garage or outdoor settings.
  • Easy installation via 2D keystone, Corner Fit, and 116% projection offset.
  • Seamless multi-projector setup supported by factory-calibrated white balance.

What customers don't like about BenQ LH830ST

  • Native 1080p resolution lacks the extreme clarity of 4K models like the LK830ST.
  • Noticeably slower power-on and source connection time than some competitors.
  • External power adapter can make for a less streamlined physical installation.
  • Optimised for simulation and commercial use rather than dedicated home cinema.
  • Automatic edge-blending software is not built-in and requires external solutions.

Verdict

The BenQ LH830ST is a 1080p Full HD laser projector specifically designed for simulation and multi-projector installations, featuring a bright 4000 ANSI lumen output and a massive 3,000,000:1 FOFO contrast ratio. Key characteristics include a fixed 0.496 short-throw lens capable of projecting a 100-inch image from just a few feet away, 93% Rec. 709 colour coverage, and an IP6X-rated sealed laser engine with a 20,000-hour lifespan. Its main pros are the factory white balance calibration and 'Blending Ready' presets that drastically simplify multi-projector alignment, alongside low 16.7ms input lag for responsive simulation. However, notable cons include its fixed lens with no optical zoom, requiring precise physical placement for screen filling, and its native resolution being limited to 1080p rather than 4K.

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