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 TH575i review: 86 specs compared

Avg. price:~£470Native panel resolution:1920x1080ANSI lumens:3800Throw ratio:1.49-1.64:1Lamp life:6000 hours

BenQ TH575i Review: Compare 86 technical specifications, 3 expert and video reviews and 1 best-of list to see how this product ranks in the Projectors category and whether it is worth buying.

BenQ TH575i
7.1/10

Overall score

Score
7.1/ 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
▼
<55-66-77-88-99-10
▼ Worse than 55% of models
Score components

35%

6.5

Technical score

30%

8.3

List score

25%

6.5

Reviews score

10%

?

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

▼Worse than 55% of projectors
7.4

Value for money

Value for money
7.4/ 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
▼
<55-66-77-88-99-10
▲ Better than 69% of models
Score components

70%

7.1

Overall score

30%

8.0

Price

▲Better than 69%
6.5

Technical score

Technical score
6.5/ 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
▼
<55-66-77-88-99-10
▲ Better than 51% of models
Score components

42%

8.0

Image Quality

22%

5.0

Projection & Lens

12%

5.7

HDMI & Gaming

10%

6.8

Audio & Features

8%

5.5

Connectivity

6%

4.2

Design & Power

▲Better than 51%
6.5

Reviews score

Reviews score
6.5/ 10
✕
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
▼
<55-66-77-88-99-10
▼ Worse than 69% of models

6.5

Mark 8.2 is below the typical mark 8.2 of this category, so it cannot lift the score above the technical score

80%

8.6

Average grade

20%

6.7

Popularity

Grades by review (3)
3 video reviews, each counting half as much as a written test. Reviews count 25% of the overall score.
User ratings collected online are not part of this score.
▼Worse than 69%
8.3

List score

List score
8.3/ 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 (1)
List score: in 1 of 41 lists (2%)
▲Better than 76%
  • benq-th575i
  • benq-th575i
  • benq-th575i
  • benq-th575i
  • benq-th575i
  • benq-th575i
  • benq-th575i
benq-th575i
benq-th575i
benq-th575i
benq-th575i
benq-th575i
benq-th575i
benq-th575i
Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.

What reviewers say about the BenQ TH575i

Based on 0 · 3

Reviewers like the built-in Google TV, but agree the built-in speakers are weak.
Praised
Criticised
Pick a topic to see who said what
Loading category ranking...

Technical Specifications of projector BenQ TH575i

Technical score
Technical score
6.5/ 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
▼
<55-66-77-88-99-10
▲ Better than 51% of models
Score components:

42%

8.0

Image Quality

22%

5.0

Projection & Lens

12%

5.7

HDMI & Gaming

10%

6.8

Audio & Features

8%

5.5

Connectivity

6%

4.2

Design & Power

6.5
Reviews score
6.5
List score
8.3
Value for money
Value for money
7.4/ 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
▼
<55-66-77-88-99-10
▲ Better than 69% of models
Score components:

70%

7.1

Overall score

30%

8.0

Price

7.4
ANSI lumens
3,800
Market range: <250 – >4k
This projector reaches 3,800 ANSI lumens, brighter than 82.8% of projectors and equal to 0.8% of projectors.
Contrast ratio
15,000:1
This projector has a contrast ratio of 15000:1, higher than 54% of projectors and equal to 2.9% 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
1.49-1.64:1
Min throw distance
2.3 m
Market range: <0.5 m – >2 m
This projector needs a minimum throw distance of 2.3 m, longer than 96.9% of projectors and equal to 0.4% of projectors.
Max projection size
120 inch
Market range: <100 inch – >300 inch
This projector supports projection sizes up to 120 inch, smaller than 80.2% of projectors and equal to 10.7% of projectors.
Zoom ratio
1.1
Market range: <1.1 – >2.1
This projector offers a zoom ratio of 1.1, narrower than 82.4% of projectors and equal to 16.1% of projectors.
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.
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
1.4
This projector supports HDMI 1.4, older than 54% of projectors and equal to 35.7% of projectors.
Max HDMI bandwidth
10.2 Gbps
Market range: <10 Gbps – >50 Gbps
This projector supports HDMI bandwidth up to 10.2 Gbps, lower than 51.2% of projectors and equal to 46.5% of projectors.
Show more
N. of HDMI ports
1
Market range: <1 – >6
This projector has 1 HDMI port/s, fewer than 54.2% of projectors and equal to 42.9% of projectors.
Wi-Fi connectivity
yes
This projector connects to Wi-Fi networks for streaming. 46.7% of projectors offer this.
Wi-Fi version
N/A
Bluetooth connectivity
yes
This projector supports Bluetooth for speakers and headphones. 49.4% of projectors offer this.
Bluetooth version
N/A
Show more
Smart TV features
yes
This projector has built-in smart TV features. 56.2% of projectors offer this.
Operating system
?
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
What reviewers say
Light source type
lamp
This projector uses lamp light source technology, less advanced than 66.5% of projectors and equal to 33.5% of projectors.
Laser light source
no
This projector does not have a laser light source. 26.8% of projectors offer this.
Lamp life
6,000 hours
Market range: <5k hours – >30k hours
This projector offers lamp life of 6,000 hours, longer than 66.8% of projectors and equal to 3.6% of projectors.
Lamp life (eco mode)
10,000 hours
Market range: <5k hours – >30k hours
This projector offers eco-mode lamp life of 10,000 hours, longer than 64.8% of projectors and equal to 9.7% of projectors.
Operating power consumption
295 W
Market range: <50 W – >400 W
This projector uses 295 W of power, more than 68% of projectors and equal to 0.8% of projectors.
Show more

BenQ TH575i vs the average projector

246810TotalImage QualityProjection & LensHDMI & GamingConnectivityAudio & FeaturesDesign & Power
  • 72.7% brighter image
    This projector has higher ANSI lumens than the average projector (3,800 vs 2,200). The average projector has 2,200 ANSI lumens.
    3,800 vs 2,200
  • 44 % more vertical lens shift
    This projector has more vertical lens shift than the average projector (108 % vs 64 %). The average projector has 64 % vertical lens shift.
    108 % vs 64 %
  • Supports auto keystone correction
    BenQ TH575i corrects keystone distortion automatically, while the average projector does not. 36.9% of projectors offer this.
  • Supports smart TV apps
    This projector has built-in smart TV features, while the average projector does not. 43.9% of projectors offer smart TV features.
  • 10 degrees more vertical correction
    This projector offers more vertical keystone correction than the average projector (40 degrees vs 30 degrees). The average projector offers vertical keystone correction of 30 degrees.
    40 degrees vs 30 degrees
  • Built-in Chromecast
    This projector supports built-in Chromecast, while the average projector does not. 24.9% of projectors support built-in Chromecast.
  • 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
  • 5 more recent release
    This projector was released more recently than the average projector (2026 vs 2021). The average projector was released in 2021.
    2,026 vs 2,021
  • 9.2% higher list score
    List score
    8.3/ 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 (1)
    List score: in 1 of 41 lists (2%)
    8.3 vs 7.6
  • 72.7% brighter image
    This projector has higher ANSI lumens than the average projector (3,800 vs 2,200). The average projector has 2,200 ANSI lumens.
    3,800 vs 2,200
  • 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
  • 5 more recent release
    This projector was released more recently than the average projector (2026 vs 2021). The average projector was released in 2021.
    2,026 vs 2,021
  • Higher contrast ratio
    This projector has a higher contrast ratio than the average projector (15000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.
    15,000:1 vs 10,000:1
  • 44 % more vertical lens shift
    This projector has more vertical lens shift than the average projector (108 % vs 64 %). The average projector has 64 % vertical lens shift.
    108 % vs 64 %
  • Supports auto keystone correction
    BenQ TH575i corrects keystone distortion automatically, while the average projector does not. 36.9% of projectors offer this.
  • 10 degrees more vertical correction
    This projector offers more vertical keystone correction than the average projector (40 degrees vs 30 degrees). The average projector offers vertical keystone correction of 30 degrees.
    40 degrees vs 30 degrees
  • 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.
    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.
  • Supports smart TV apps
    This projector has built-in smart TV features, while the average projector does not. 43.9% of projectors offer smart TV features.
  • Basic light source
    This projector has Basic light source than the average projector (lamp vs laser). The average projector uses a laser light source.
    lamp vs laser
  • 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
  • 130 inch smaller image size
    This projector has a lower projection size than the average projector (120 inch vs 250 inch). The average projector has 250 inch of projection size.
    120 inch vs 250 inch
  • Limited HDMI format
    This projector supports a less capable max HDMI input format than the average projector (1080p/120Hz vs 4K/120Hz). The average projector supports a max HDMI input format of 4K/120Hz.
    1080p/120Hz vs 4K/120Hz
  • 1.29 m longer throw distance
    This projector has a higher throw distance than the average projector (2.3 m vs 1 m). The average projector has 1.0055 m of throw distance.
    2.3 m vs 1.0055 m
  • 43.3% lower HDMI bandwidth
    This projector 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
  • Older HDMI version
    This projector has Old HDMI standard than the average projector (1.4 vs 2). The average projector supports HDMI 2.0.
    1.4 vs 2.0
  • 0.2 2x narrower zoom range
    This projector has a lower zoom ratio than the average projector (1.1 vs 1.3). The average projector has 1.3 of zoom ratio.
    1.1 vs 1.3
  • 12.2% lower review score
    Reviews score
    6.5/ 10
    ✕
    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
    ▼
    <55-66-77-88-99-10
    ▼ Worse than 69% of models

    6.5

    Mark 8.2 is below the typical mark 8.2 of this category, so it cannot lift the score above the technical score

    80%

    8.6

    Average grade

    20%

    6.7

    Popularity

    Grades by review (3)
    3 video reviews, each counting half as much as a written test. Reviews count 25% of the overall score.
    User ratings collected online are not part of this score.
    6.5 vs 7.4
  • Narrower color gamut
    This projector has a lower color gamut coverage than the average projector (88% Rec.709 % vs 99% Rec.709 %). The average projector has 99% Rec.709 % of color gamut coverage.
    88% Rec.709 % vs 99% Rec.709 %
  • 130 inch smaller image size
    This projector has a lower projection size than the average projector (120 inch vs 250 inch). The average projector has 250 inch of projection size.
    120 inch vs 250 inch
  • 1.29 m longer throw distance
    This projector has a higher throw distance than the average projector (2.3 m vs 1 m). The average projector has 1.0055 m of throw distance.
    2.3 m vs 1.0055 m
  • 0.2 2x narrower zoom range
    This projector has a lower zoom ratio than the average projector (1.1 vs 1.3). The average projector has 1.3 of zoom ratio.
    1.1 vs 1.3
  • Limited HDMI format
    This projector supports a less capable max HDMI input format than the average projector (1080p/120Hz vs 4K/120Hz). The average projector supports a max HDMI input format of 4K/120Hz.
    1080p/120Hz vs 4K/120Hz
  • 43.3% lower HDMI bandwidth
    This projector 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
  • Older HDMI version
    This projector has Old HDMI standard than the average projector (1.4 vs 2). The average projector supports HDMI 2.0.
    1.4 vs 2.0
  • More outdated HDCP support
    This projector supports an older HDCP version than the average projector (1.4 vs 2.2).
    1.4 vs 2.2
  • 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
  • Basic light source
    This projector has Basic light source than the average projector (lamp vs laser). The average projector uses a laser light source.
    lamp vs laser
  • 3 dB louder operation
    This projector has a higher audible noise than the average projector (34 dB vs 31 dB). The average projector has 31 dB of audible noise.
    34 dB vs 31 dB
  • 14,000 hours shorter lamp life
    This projector has a lower lamp life than the average projector (6,000 hours vs 20,000 hours). The average projector has 20,000 hours of lamp life.
    6,000 hours vs 20,000 hours
  • 10,000 hours shorter eco lamp life
    This projector has a lower lamp life in eco mode than the average projector (10,000 hours vs 20,000 hours). The average projector has 20,000 hours of lamp life in eco mode.
    10,000 hours vs 20,000 hours
  • 1 dB louder eco mode
    This projector has a higher audible noise in eco mode than the average projector (29 dB vs 28 dB). The average projector has 28 dB of audible noise in eco mode.
    29 dB vs 28 dB
  • 65 W higher power use
    This projector uses more power than the average projector (295 W vs 230 W). The average projector uses 230 W of power.
    295 W vs 230 W
  • 87 mm thicker body
    This projector is thicker than the average projector (237 mm vs 150 mm). The average projector has a thickness of 150 mm.
    237 mm vs 150 mm

Video reviews

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

9.0
Mrtechinside Shorts
≈ estimated
09/10/2026
Two-week hands-on review · movies, sports and gaming
Verdict
BenQ TH575i is a very good alternative to a TV for movies and shows, though not for competitive gaming.
9.0
SoundNStyle
≈ estimated
21/07/2026
First impressions · unboxing and setup
Verdict
BenQ TH575i is good value for money, with a bright picture and built-in Google TV that suits the price.
Shop video
Overview video

Third-party reviews

What customers like about BenQ TH575i

  • 108 % vertical lens shift moves the picture without tilting the projector.
  • Auto keystone correction and 40 degrees of vertical correction make setup easy.
  • 3800 ANSI lumens give a bright picture in a lit room.
  • A 1920x1080 panel gives full HD detail.
  • At 2.3 kg it is light enough to move between rooms.
  • Ceiling mounting is supported, and it can show 3D formats.
  • Eco mode lowers the noise to 29 dB and extends lamp life to 10000 hours.

What customers don't like about BenQ TH575i

  • The maximum picture is 120 inch, which cannot fill a large wall.
  • The minimum throw of 2.3 m needs a room deep enough for the projector to sit back.
  • Zoom is only 1.1, so placement has to be planned.
  • There is only one HDMI port, so a console and a streaming stick need a switch.
  • At 237 mm thick, it takes up room on a shelf.

Verdict

Lens shift is the reason to look at the BenQ TH575i, a mid-range 1080p projector that is easy to place in an awkward room. With 108 % vertical lens shift, the picture moves up or down the wall without tilting the projector, so it stays square. At 3800 ANSI lumens and 1920x1080, it is bright enough for a lit living room and sharp enough for films. Its 120 Hz refresh rate and 16.7 ms input lag make it a fair choice for console games. The trade-off is the 120 inch maximum picture, which cannot fill a large wall. Eco mode drops noise from 34 dB to 29 dB and stretches lamp life to 10000 hours. It suits someone with a modest room who wants to mount the projector almost anywhere.

Compare BenQ TH575i with other products in the Projectors category

1Product to compare no. 1
VS
2Product to compare no. 2
VS
3Product to compare no. 3 (optional)

Graphic comparison of BenQ TH575i and other products in the Projectors category

No results found