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

Ricoh UHL3660 review: 86 specs compared

Avg. price:~£4,950Native panel resolution:1920x1080ANSI lumens:6500Throw ratio:0.24:1Lamp life:20000 hours

Ricoh UHL3660 Review: Compare 86 technical specifications, 4 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.

Ricoh UHL3660
7.4/10

Overall score

Score
7.4/ 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
▲ Better than 71% of models
Score components

35%

7.2

Technical score

30%

7.2

List score

25%

8.3

Reviews score

10%

?

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

▲Better than 71% of projectors
5.5

Value for money

Value for money
5.5/ 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
▼ Worse than 91% of models
Score components

70%

7.4

Overall score

30%

1.0

Price

▼Worse than 91%
7.2

Technical score

Technical score
7.2/ 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 75% of models
Score components

42%

8.7

Image Quality

22%

5.0

Projection & Lens

12%

6.5

HDMI & Gaming

10%

6.8

Audio & Features

8%

6.9

Connectivity

6%

6.3

Design & Power

▲Better than 75%
8.3

Reviews score

Reviews score
8.3/ 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
▲ Better than 51% of models

80%

8.6

Average grade

20%

7.1

Popularity

Grades by review (4)
3 reviews: 0 with a printed score, 3 estimated from the review. 1 video review, 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.
▲Better than 51%
7.2

List score

List score
7.2/ 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 102 lists (1%)
▲Better than 76%
  • ricoh-uhl3660
ricoh-uhl3660
Where to buy
    N/A~ £4,950
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 Ricoh UHL3660

Based on 3 · 1

Reviewers praise its bright, sharp picture from very close to the wall, but miss video conferencing features and Wi-Fi.
Praised
Criticised
Pick a topic to see who said what
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Technical Specifications of projector Ricoh UHL3660

Technical score
Technical score
7.2/ 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 75% of models
Score components:

42%

8.7

Image Quality

22%

5.0

Projection & Lens

12%

6.5

HDMI & Gaming

10%

6.8

Audio & Features

8%

6.9

Connectivity

6%

6.3

Design & Power

7.2
Reviews score
8.3
List score
7.2
Value for money
Value for money
5.5/ 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
▼ Worse than 91% of models
Score components:

70%

7.4

Overall score

30%

1.0

Price

5.5
ANSI lumens
6,500
Market range: <280 – >4k
This projector reaches 6,500 ANSI lumens, brighter than 98.6% of projectors and equal to 0.1% of projectors.
Contrast ratio
5,000,000:1
This projector has a contrast ratio of 5000000:1, higher than 98.2% of projectors and equal to 1.2% of projectors.
Dynamic contrast ratio.
Native panel resolution
1920x1080
This projector uses a native resolution of 1920x1080, higher than 27% of projectors and equal to 59.2% of projectors.
Uses XPR pixel-shifting for 4K output.
Output resolution
3840x2160
This projector supports output resolution up to 3840x2160, higher than 71.2% of projectors and equal to 24.6% of projectors.
Via XPR pixel shifting.
Projection technology
DLP
Show more
What reviewers say
Throw ratio
0.24:1
Min throw distance
0.01 m
Market range: <0.5 m – >1.651 m
This projector needs a minimum throw distance of 0.01 m, shorter than 100% of projectors.
Max projection size
160 inch
Market range: <120 inch – >301 inch
This projector supports projection sizes up to 160 inch, smaller than 66.4% of projectors and equal to 0.6% of projectors.
Zoom ratio
N/A
Motorized zoom
no
This projector does not have motorised zoom. 14.8% of projectors offer this.
Show more
What reviewers say
Input lag
58.7 ms
Market range: <8 ms – >68 ms
This projector has input lag of 58.7 ms, higher than 86.6% 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.
Different HDMI ports reach 18 and 10.2 Gbps.
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
yes
This projector connects to Wi-Fi networks for streaming. 46.7% of projectors offer this.
Wi-Fi version
?
Bluetooth connectivity
no
This projector does not support Bluetooth. 50.7% of projectors offer this.
Bluetooth version
N/A
Show more
What reviewers say
Smart TV features
no
This projector does not have built-in smart TV features. 43.9% of projectors offer this.
Operating system
none
Android OS
no
This projector does not run Android OS. 19.1% of projectors run 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.
Dual laser.
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
460 W
Market range: <57 W – >390 W
This projector uses 460 W of power, more than 96.4% of projectors and equal to 0.3% of projectors.
Show more

Ricoh UHL3660 vs the average projector

246810TotalImage QualityProjection & LensHDMI & GamingConnectivityAudio & FeaturesDesign & Power
  • 2.95x brighter image
    This projector has higher ANSI lumens than the average projector (6,500 vs 2,200). The average projector has 2,200 ANSI lumens.
    6,500 vs 2,200
  • Higher contrast ratio
    This projector has a higher contrast ratio than the average projector (5000000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.
    Dynamic contrast ratio.
    5,000,000:1 vs 10,000:1
  • Higher output resolution
    This projector supports a higher output resolution than the average projector (3840x2160 vs 1920x1080). The average projector outputs at 1920x1080 resolution.
    Via XPR pixel shifting.
    3840x2160 vs 1920x1080
  • Wider color gamut
    This projector has a higher color gamut coverage than the average projector (87.8% DCI-P3 % vs 99% Rec.709 %). The average projector has 99% Rec.709 % of color gamut coverage.
    87.8% DCI-P3 % vs 99% Rec.709 %
  • 1 m shorter throw distance
    This projector has a lower throw distance than the average projector (0 m vs 1 m). The average projector has 1.0055 m of throw distance.
    0.01 m vs 1.0055 m
  • Supports pixel shifting
    This projector supports pixel shifting, while the average projector does not. 26.6% of projectors support pixel shifting.
    Via 4-way pixel shift.
  • 2 more RJ45 ports
    This projector has more RJ45 ports than the average projector (2 vs 0). The average projector has 0 RJ45 ports.
    LAN and HDBaseT ports.
    2 vs 0
  • 3 more USB ports
    This projector has more USB ports than the average projector (4 vs 1). The average projector has 1 USB ports.
    4 vs 1
  • 12.2% higher review score
    Reviews score
    8.3/ 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
    ▲ Better than 51% of models

    80%

    8.6

    Average grade

    20%

    7.1

    Popularity

    Grades by review (4)
    3 reviews: 0 with a printed score, 3 estimated from the review. 1 video review, 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.
    8.3 vs 7.4
  • 2.95x brighter image
    This projector has higher ANSI lumens than the average projector (6,500 vs 2,200). The average projector has 2,200 ANSI lumens.
    6,500 vs 2,200
  • Higher contrast ratio
    This projector has a higher contrast ratio than the average projector (5000000:1 vs 10000:1). The average projector has 10000:1 of contrast ratio.
    Dynamic contrast ratio.
    5,000,000:1 vs 10,000:1
  • Higher output resolution
    This projector supports a higher output resolution than the average projector (3840x2160 vs 1920x1080). The average projector outputs at 1920x1080 resolution.
    Via XPR pixel shifting.
    3840x2160 vs 1920x1080
  • Wider color gamut
    This projector has a higher color gamut coverage than the average projector (87.8% DCI-P3 % vs 99% Rec.709 %). The average projector has 99% Rec.709 % of color gamut coverage.
    87.8% DCI-P3 % vs 99% Rec.709 %
  • Supports pixel shifting
    This projector supports pixel shifting, while the average projector does not. 26.6% of projectors support pixel shifting.
    Via 4-way pixel shift.
  • 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
  • Supports HLG
    This projector supports HLG, while the average projector does not. 41.2% of projectors support HLG.
  • 3 more recent release
    This projector was released more recently than the average projector (2024 vs 2021). The average projector was released in 2021.
    2024 vs 2021
  • 1 m shorter throw distance
    This projector has a lower throw distance than the average projector (0 m vs 1 m). The average projector has 1.0055 m of throw distance.
    0.01 m vs 1.0055 m
  • Advanced focus control
    This projector offers more advanced focus control than the average projector (motorized vs manual). Typical projector: manual.
    Remote-controlled electronic focus.
    motorized vs manual
  • Motorized focus
    This projector supports motorized focus, while the average projector does not. 45.6% of projectors support motorized focus.
    Remote-controlled electronic focus.
  • 2 more RJ45 ports
    This projector has more RJ45 ports than the average projector (2 vs 0). The average projector has 0 RJ45 ports.
    LAN and HDBaseT ports.
    2 vs 0
  • 3 more USB ports
    This projector has more USB ports than the average projector (4 vs 1). The average projector has 1 USB ports.
    4 vs 1
  • Supports Miracast mirroring
    This projector supports Miracast, while the average projector does not. 46.4% of projectors offer this.
  • VGA input included
    This projector supports VGA input, while the average projector does not. 44.1% of projectors support VGA input.
  • Includes stereo speakers
    This projector has stereo speakers, while the average projector does not. 47.8% of projectors have stereo speakers.
  • 10% stronger audio output
    This projector has a higher audio output power than the average projector (11 W vs 10 W). The average projector has 10 W of audio output power.
    2 x 3W.
    11 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.
    Dual laser.
  • 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
  • 31.7 ms higher input lag
    This projector has a higher input lag than the average projector (58.7 ms vs 27 ms). The average projector has 27 ms of input lag.
    At 1080P/60Hz.
    58.7 ms vs 27 ms
  • No Bluetooth connectivity
    This projector does not support Bluetooth, while the average projector does. 50.6% 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
  • 90 inch smaller image size
    This projector has a lower projection size than the average projector (160 inch vs 250 inch). The average projector has 250 inch of projection size.
    160 inch vs 250 inch
  • No 3D video
    This projector does not support 3D video, while the average projector does. 55.4% of projectors support 3D video.
  • 5 dB louder operation
    This projector has a higher audible noise than the average projector (36 dB vs 31 dB). The average projector has 31 dB of audible noise.
    36 dB vs 31 dB
  • 15 degrees less horizontal correction
    This projector offers less horizontal keystone correction than the average projector (15 degrees vs 30 degrees). The average projector offers horizontal keystone correction of 30 degrees.
    15 degrees vs 30 degrees
  • 3.86x heavier weight
    This projector is heavier than the average projector (11.5 kg vs 2.98 kg). The average projector weighs 2.98 kg.
    11.5 kg vs 2.98 kg
  • 7.5x more expensive
    Ricoh UHL3660 is more expensive than the average projector (£4,950 vs £660).
    £4,950 vs £660
  • 26.5% worse value for money
    Ricoh UHL3660 has a lower value-for-money score than the average projector (5.49 vs 6.9).
    5.49 vs 6.95
  • 5.3% lower list score
    List score
    7.2/ 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 102 lists (1%)
    7.2 vs 7.6
  • 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.
  • 12.9% lower refresh rate
    This projector has a lower refresh rate than the average projector (74 Hz vs 85 Hz). The average projector has 85 Hz of refresh rate.
    74 Hz vs 85 Hz
  • 90 inch smaller image size
    This projector has a lower projection size than the average projector (160 inch vs 250 inch). The average projector has 250 inch of projection size.
    160 inch vs 250 inch
  • 15 degrees less horizontal correction
    This projector offers less horizontal keystone correction than the average projector (15 degrees vs 30 degrees). The average projector offers horizontal keystone correction of 30 degrees.
    15 degrees vs 30 degrees
  • 10 degrees less vertical correction
    This projector offers less vertical keystone correction than the average projector (20 degrees vs 30 degrees). The average projector offers vertical keystone correction of 30 degrees.
    20 degrees vs 30 degrees
  • 31.7 ms higher input lag
    This projector has a higher input lag than the average projector (58.7 ms vs 27 ms). The average projector has 27 ms of input lag.
    At 1080P/60Hz.
    58.7 ms vs 27 ms
  • 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 Bluetooth connectivity
    This projector does not support Bluetooth, while the average projector does. 50.6% of projectors offer this.
  • 5 dB louder operation
    This projector has a higher audible noise than the average projector (36 dB vs 31 dB). The average projector has 31 dB of audible noise.
    36 dB vs 31 dB
  • 3.86x heavier weight
    This projector is heavier than the average projector (11.5 kg vs 2.98 kg). The average projector weighs 2.98 kg.
    11.5 kg vs 2.98 kg
  • 230 W higher power use
    This projector uses more power than the average projector (460 W vs 230 W). The average projector uses 230 W of power.
    460 W vs 230 W
  • 4 dB louder eco mode
    This projector has a higher audible noise in eco mode than the average projector (32 dB vs 28 dB). The average projector has 28 dB of audible noise in eco mode.
    32 dB vs 28 dB
  • 233 mm wider body
    This projector is wider than the average projector (530 mm vs 297 mm). The average projector has a width of 297 mm.
    530 mm vs 297 mm

Video reviews

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

9.0
ProjectorCentral
≈ estimated
04/03/2025
Podcast interview · reviewer's hands-on testing and impressions
Verdict
Ricoh UHL3660 gets a very positive review as a high-brightness ultra short throw projector that stands out, with rock-solid 4K imaging.
Overview video
Brand video

Expert reviews

In-depth analysis and verdict from leading tech publications

9.0
projectorcentral.com
≈ estimated
30/01/2025
Expert review · Ultra-short-throw 4K projector
Verdict
The Ricoh UHL3660 is a very bright 4K ultra-short-throw projector for conference rooms and classrooms, but it lacks a 21:9 widescreen meeting mode.
9.0
projectorreviews.com
≈ estimated
17/04/2025
Product review · Ultra-short-throw 4K projector
Verdict
The Ricoh UHL3660 is a very bright 4K ultra-short-throw projector for well-lit rooms, though it lacks a 21:9 widescreen meeting mode.
9.0
aixprojector.com
≈ estimated
26/07/2025
Feature review · Ultra-short-throw 4K projector
Verdict
The Ricoh UHL3660 is a bright 4K ultra-short-throw projector for classrooms and conference rooms, but it lacks a 21:9 widescreen meeting mode.

Third-party reviews

What customers like about Ricoh UHL3660

  • High actual brightness often exceeding its 6,500-lumen rating for well-lit rooms
  • Ultra-short throw (0.24 ratio) allows massive images from minimal distance without shadows
  • Long-lasting laser source with up to 40,000-hour lifespan in eco/long-life modes
  • Maintenance-free design with a sealed, IP6X dust-proof light engine
  • Flexible installation options including 360-degree mounting and portrait mode
  • Advanced setup tools like geometric correction, warping, and built-in edge blending
  • Excellent text legibility and sharpness even at smaller font sizes

What customers don't like about Ricoh UHL3660

  • Noticeable hot spotting in the upper right corner when displaying bright white content
  • Lack of 'smart' features; requires external streaming devices for apps
  • WiFi connectivity is limited primarily to Miracast screen sharing
  • Included remote control lacks a backlight for use in dark rooms
  • No support for 3D content
  • High price point compared to lower-output consumer or business models
  • Input lag is around 58.7ms, making it unsuitable for competitive gaming

Verdict

The Ricoh PJ UHL3660 is a professional 4K UHD ultra-short-throw laser projector utilizing a 0.65-inch DLP chip and 4-way pixel-shifting technology to deliver exceptionally sharp visuals with a 5,000,000:1 dynamic contrast ratio. Key characteristics include a high brightness of 6,500 lumens powered by dual-laser OptiBright technology, an ultra-low 0.24:1 throw ratio capable of projecting a 160-inch image from just 15 inches away, and an IP6X dust-proof sealed optical engine for 24/7 operation. Major pros include a maintenance-free lifespan of up to 40,000 hours in Long Life mode, 360-degree and portrait mounting flexibility, and robust connectivity with HDMI 2.0, HDBaseT, and wireless Miracast. Some cons include a lack of built-in smart TV features, no 3D support, and a non-backlit remote control.

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