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

Thomson Sirius PG55B review: 86 specs compared

Avg. price:~£560Native panel resolution:1920x1080ANSI lumens:600Throw ratio:0.19:1Lamp life:20000 hours

Thomson Sirius PG55B Review: Compare 86 technical specifications, 3 expert and video reviews and 2 best-of lists to see how this product ranks in the Projectors category and whether it is worth buying.

Thomson Sirius PG55B
6.9/10

Overall score

Score
6.9/ 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 68% of models
Score components

35%

6.9

Technical score

30%

6.9

List score

25%

6.9

Reviews score

10%

?

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

▼Worse than 68% of projectors
7.1

Value for money

Value for money
7.1/ 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
▼
<55-66-77-88-99-10
▲ Better than 54% of models
Score components

70%

6.9

Overall score

30%

7.6

Price

▲Better than 54%
6.9

Technical score

Technical score
6.9/ 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 67% of models
Score components

42%

6.4

Image Quality

22%

6.3

Projection & Lens

12%

6.8

HDMI & Gaming

10%

8.4

Audio & Features

8%

7.9

Connectivity

6%

8.8

Design & Power

▲Better than 67%
6.9

Reviews score

Reviews score
6.9/ 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 62% of models

6.9

Mark 8.1 is below the typical mark 8.2 of this category, so it cannot lift the score above the technical score

80%

8.5

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 62%
6.9

List score

List score
6.9/ 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 (2)
List score: in 2 of 108 lists (2%)
▲Better than 87%
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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 Thomson Sirius PG55B

Based on 0 · 3

Reviewers agree brightness is the big problem, with the picture looking too dim.
Criticised
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Technical Specifications of projector Thomson Sirius PG55B

Technical score
Technical score
6.9/ 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 67% of models
Score components:

42%

6.4

Image Quality

22%

6.3

Projection & Lens

12%

6.8

HDMI & Gaming

10%

8.4

Audio & Features

8%

7.9

Connectivity

6%

8.8

Design & Power

6.9
Reviews score
6.9
List score
6.9
Value for money
Value for money
7.1/ 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
▼
<55-66-77-88-99-10
▲ Better than 54% of models
Score components:

70%

6.9

Overall score

30%

7.6

Price

7.1
ANSI lumens
600
Market range: <250 – >4k
This projector reaches 600 ANSI lumens, dimmer than 75.8% of projectors and equal to 0.8% of projectors.
Contrast ratio
1,000:1
This projector has a contrast ratio of 1000:1, lower than 85.9% of projectors and equal to 7.5% 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
LCD
Show more
What reviewers say
Throw ratio
0.19:1
Min throw distance
0.26 m
Market range: <0.5 m – >2 m
This projector needs a minimum throw distance of 0.26 m, shorter than 95.2% of projectors and equal to 0.1% of projectors.
Max projection size
100 inch
Market range: <100 inch – >300 inch
This projector supports projection sizes up to 100 inch, smaller than 92% of projectors and equal to 6.7% 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
?
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 Gbps – >50 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
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
?
Bluetooth connectivity
yes
This projector supports Bluetooth for speakers and headphones. 49.4% of projectors offer this.
Bluetooth version
5.1
This projector supports Bluetooth 5.1, more modern than 79.5% of projectors and equal to 7.5% of projectors.
Show more
Smart TV features
yes
This projector has built-in smart TV features. 56.2% of projectors offer this.
Operating system
Google TV
Android OS
?
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: <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)
?
Operating power consumption
72 W
Market range: <50 W – >400 W
This projector uses 72 W of power, less than 78.7% of projectors and equal to 0.6% of projectors.
Show more

Thomson Sirius PG55B vs the average projector

246810TotalImage QualityProjection & LensHDMI & GamingConnectivityAudio & FeaturesDesign & Power
  • Advanced focus control
    This projector offers more advanced focus control than the average projector (auto-focus vs manual). Typical projector: manual.
    auto-focus vs manual
  • Supports HDR10+
    This projector supports HDR10+, while the average projector does not. 15.2% of projectors support HDR10+.
  • 0.75 m shorter throw distance
    This projector has a lower throw distance than the average projector (0.3 m vs 1 m). The average projector has 1.0055 m of throw distance.
    0.26 m vs 1.0055 m
  • Supports auto keystone correction
    Thomson Sirius PG55B corrects keystone distortion automatically, while the average projector does not. 36.9% of projectors offer this.
  • Supports HDMI ARC
    This projector supports HDMI ARC, while the average projector does not. 35.2% of projectors support HDMI ARC.
  • 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.
  • Includes stereo speakers
    This projector has stereo speakers, while the average projector does not. 47.8% of projectors have stereo speakers.
  • Built-in Chromecast
    This projector supports built-in Chromecast, while the average projector does not. 24.9% of projectors support built-in Chromecast.
  • Supports HDR10+
    This projector supports HDR10+, while the average projector does not. 15.2% of projectors support HDR10+.
  • Supports HLG
    This projector supports HLG, while the average projector does not. 41.2% of projectors support HLG.
  • Advanced focus control
    This projector offers more advanced focus control than the average projector (auto-focus vs manual). Typical projector: manual.
    auto-focus vs manual
  • 0.75 m shorter throw distance
    This projector has a lower throw distance than the average projector (0.3 m vs 1 m). The average projector has 1.0055 m of throw distance.
    0.26 m vs 1.0055 m
  • Supports auto keystone correction
    Thomson Sirius PG55B corrects keystone distortion automatically, while the average projector does not. 36.9% of projectors offer this.
  • Motorized focus
    This projector supports motorized focus, while the average projector does not. 45.6% of projectors support motorized focus.
  • Supports HDMI ARC
    This projector supports HDMI ARC, while the average projector does not. 35.2% of projectors support HDMI ARC.
  • 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.
  • Supports AirPlay
    This projector supports AirPlay, while the average projector does not. 40.3% of projectors offer this.
  • 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
  • Supports Miracast mirroring
    This projector supports Miracast, while the average projector does not. 46.4% 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.
  • Includes stereo speakers
    This projector has stereo speakers, while the average projector does not. 47.8% of projectors have stereo speakers.
  • Supports voice commands
    This projector supports voice commands, while the average projector does not. 36.1% of projectors support voice commands.
  • 40% stronger audio output
    This projector has a higher audio output power than the average projector (14 W vs 10 W). The average projector has 10 W of audio output power.
    14 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.
  • Includes built-in battery
    Thomson Sirius PG55B has a built-in battery, while the average projector does not. 6.3% of projectors have one.
  • 158 W lower power use
    This projector uses less power than the average projector (72 W vs 230 W). The average projector uses 230 W of power.
    72 W vs 230 W
  • 42.3% lighter weight
    This projector is lighter than the average projector (1.7 kg vs 2.98 kg). The average projector weighs 2.98 kg.
    1.72 kg vs 2.98 kg
  • 72.7% dimmer image
    This projector has lower ANSI lumens than the average projector (600 vs 2,200). The average projector has 2,200 ANSI lumens.
    600 vs 2,200
  • Lower contrast ratio
    This projector 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
  • 150 inch smaller image size
    This projector has a lower projection size than the average projector (100 inch vs 250 inch). The average projector has 250 inch of projection size.
    100 inch vs 250 inch
  • 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
  • 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 video
    This projector does not support 3D video, while the average projector does. 55.4% of projectors support 3D video.
  • 9.2% lower list score
    List score
    6.9/ 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 (2)
    List score: in 2 of 108 lists (2%)
    6.9 vs 7.6
  • No headphone jack
    This projector does not have a 3.5 mm audio jack, while the average projector does. 84.4% of projectors offer a 3.5 mm audio jack.
  • 9.2% lower list score
    List score
    6.9/ 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 (2)
    List score: in 2 of 108 lists (2%)
    6.9 vs 7.6
  • 6.8% lower review score
    Reviews score
    6.9/ 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 62% of models

    6.9

    Mark 8.1 is below the typical mark 8.2 of this category, so it cannot lift the score above the technical score

    80%

    8.5

    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.
    6.9 vs 7.4
  • 72.7% dimmer image
    This projector has lower ANSI lumens than the average projector (600 vs 2,200). The average projector has 2,200 ANSI lumens.
    600 vs 2,200
  • Lower contrast ratio
    This projector 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
  • No 3D video
    This projector does not support 3D video, while the average projector does. 55.4% of projectors support 3D video.
  • No 3D glasses support
    This projector does not display 3D with glasses, while the average projector does. 54.4% of projectors offer 3D with glasses.
  • 150 inch smaller image size
    This projector has a lower projection size than the average projector (100 inch vs 250 inch). The average projector has 250 inch of projection size.
    100 inch vs 250 inch
  • 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
  • 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 headphone jack
    This projector does not have a 3.5 mm audio jack, while the average projector does. 84.4% of projectors offer a 3.5 mm audio jack.
  • No RS-232 control
    This projector does not support RS-232 control, while the average projector does. 50.6% of projectors support RS-232 control.

Video reviews

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

9.0
Lorenzo-high-tech
≈ estimated
10/05/2026
Long-term test · several weeks of use, picture and features
Verdict
Thomson Sirius PG55B is a versatile projector for most people, despite oversaturated colours and soft edges.
8.0
TonyTech
≈ estimated
05/12/2025
Hands-on review · 15 days of use, image and fan noise
Verdict
Thomson Sirius PG55B delivers an excellent picture in a dim room, but struggles in daylight and is held back by battery life and fan noise.
9.0
Daddyfamtech
≈ estimated
31/10/2025
Hands-on review · battery, image and sound tests
Verdict
Thomson Sirius PG55B is a surprisingly good buy, with solid battery life and sound, though 4K is only upscaled from 1080p.

Third-party reviews

What customers like about Thomson Sirius PG55B

  • A 0.26 m throw distance lets it sit close to the wall.
  • The laser light is rated for 20000 hours.
  • HDR10+ support gives films a wider range of light and dark.
  • A built-in battery lets you move it without a socket.
  • At 1.72 kg and 62 mm high, it is easy to move.
  • Chromecast built-in and AirPlay make streaming from a phone easy.

What customers don't like about Thomson Sirius PG55B

  • 600 ANSI lumens needs a dim room.
  • A 100 inch maximum picture limits it to smaller rooms.
  • Only one HDMI port, so a second device needs a switch.
  • Contrast of 1000:1 limits the depth of dark scenes.
  • There is no motorized zoom, so picture size changes need the projector moved.

Verdict

A throw distance of only 0.26 m from the wall is the main pull of the Thomson Sirius PG55B, a laser projector that fits a crowded living room. It is a 1080p laser set with 600 ANSI lumens, so the picture needs the lights dimmed. The laser light is rated for 20000 hours, and HDR10 and HDR10+ support give films a wider range. A built-in battery means you can move it around the house without finding a socket first. At 1.72 kg and 62 mm high, it is light and low, and it draws 72 W in use. Smart TV features, Wi-Fi, Bluetooth and AirPlay cover the usual ways to stream, and voice commands work too. A 100 inch top size and 600 ANSI lumens suit a dim room, not a large family screen.

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