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Impartial price comparison

Optoma UHD51 vs. ViewSonic M1 + 9

Optoma UHD51

Optoma UHD51

£1,249.00

£1,299.00 Incl. delivery
ViewSonic M1

ViewSonic M1

3.3

£139.97

£223.20 Incl. delivery
Epson EH-TW9400

Epson EH-TW9400

4

£2,499.00

Free delivery
Epson EB-X41

Epson EB-X41

£329.99

Free delivery
Epson EH-TW650

Epson EH-TW650

4.1

£461.90

£469.00 Incl. delivery
Optoma UHD60

Optoma UHD60

4

£1,787.42

Free delivery
Nebula Capsule

Nebula Capsule

£279.00

£281.48 Incl. delivery
Epson EH-TW7000

Epson EH-TW7000

3.5

£1,081.56

£1,091.55 Incl. delivery
Optoma UHD42

Optoma UHD42

£1,099.00

Free delivery
Epson EB-U42

Epson EB-U42

£581.90

£629.00 Incl. delivery
Epson EB-U05

Epson EB-U05

£444.90

£499.00 Incl. delivery
Noise level
25 - 27 dB
25 dB
20 - 24 dB
37 dB
28 dB
25 - 28 dB
24 dB
26 - 28 dB
28 dB
37 dB
Ethernet connection
Yes
No
Yes
Yes
No
Yes
No
No
Yes
Yes
Wireless network (Wi-Fi)
No
No
Yes
Yes
Yes
No
Yes
No
No
Yes
No
3D support (3D-Ready)
Yes
Yes
Yes
No
No
No
Yes
Yes
No
No
Glasses included
No
No
No
No
No
HD ready
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Full HD (HD ready 1080p)
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
HDR
Yes
No
Yes
Yes
Yes
Yes
Yes
Streaming standards
Miracast
Analogue 3.5mm input
Yes
No
No
Yes
Yes
Component input (YPbPr/YCbCr)
1 ​
0 ​
0 ​
1 ​
Composite input
0 ​
0 ​
0 ​
1 ​
1 ​
DisplayPort
No
No
No
Yes
No
No
No
HDMI
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
HDMI version
2.0
1.4
2.0
2.0
2.0
Number of HDMI inputs
2 ​
1 ​
2 ​
1 ​
2 ​
2 ​
2 ​
2 ​
2 ​
2 ​
Supported standards
MHL
MHL
MHL
MHL
Other connectors
Digital coaxial output (S/PDIF), 3.5mm output
DVI
Digital coaxial output (S/PDIF), 3.5mm output
Digital coaxial output (S/PDIF), 3.5mm output
S-video
No
No
No
Yes
USB
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
USB 2.0
1 ​
2 ​
1 ​
1 ​
0 ​
2 ​
2 ​
1 ​
VGA in
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Available colours
Black
Black, Silver
Black
Black, White
White
White, Silver
Black, Red
White
White
Black, White
White
Dimensions (WxHxD)
Depth
118 mm
126 mm
450 mm
2370 mm
252 mm
331 mm
68 mm
310 mm
270 mm
252 mm
252 mm
Height
281 mm
40.5 mm
193 mm
82 mm
92 mm
141 mm
120 mm
157 mm
118 mm
92 mm
92 mm
Width
392 mm
148 mm
520 mm
3020 mm
302 mm
498 mm
68 mm
410 mm
315 mm
302 mm
302 mm
Product weight
5.22 kg
0.7 kg
11 kg
2.5 kg
2.7 kg
7.3 kg
0.42 kg
6.6 kg
3.9 kg
2.8 kg
2.8 kg
Features
Remote control
Bluetooth, Remote control, Memory card reader
Remote control, Lens memory
Remote control
Remote control
Remote control
Remote control
Bluetooth, Remote control, Ultra short throw
Remote control
Remote control
Remote control
Built-in speakers
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Display Technology
DLP
DLP
LCD
LCD
LCD
DLP
DLP
LCD
DLP
LCD
LCD
Lamp life max (normal)
4000 h
30000 h
3500 h
6000 h
4500 h
4000 h
30000 h
3500 h
15000 h
6000 h
6000 h
Lamp life max (power save/ eco)
15000 h
30000 h
5000 h
10000 h
7500 h
10000 h
5000 h
10000 h
10000 h
10000 h
Lens shift
Yes
No
Yes
Yes
Yes
Yes
Steering
Manual
Motor-driven
Manual
Manual
Type of lens shift
Vertical
Vertical, Horizontal
Vertical
Vertical, Horizontal
Vertical
Light source
Bulb
LED
Bulb
Bulb
Bulb
Bulb
LED
Bulb
Bulb
Bulb
Bulb
Portable
No
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Projection distance
1.2 - 8.1 m
1 m
3 - 6.3 m
1.8 - 2.17 m
1.35 - 1.64 m
1.3 - 9.3 m
0.58 - 3.08 m
2.95 - 4.77 m
1.2 - 8.1 m
1.5 - 2.17 m
1.8 - 2.17 m
Screen size
34.1 - 302.4 inches
24 - 100 inches
50 - 300 inches
26.45 - 302.2 inches
34.1 - 302.4 inches
30 - 300 inches
Throw ratio
1.21 - 1.59 :1
1.2 :1
1.35 - 2.84 :1
1.48 - 1.77 :1
1.02 - 1.23 :1
1.39 - 2.22 :1
1.32 - 2.15 :1
1.21 - 1.59 :1
1.38 - 1.68 :1
1.38 - 1.68 :1
Zoom ratio
1.3 x
1 x
2.1 x
1.2 x
1.6 x
1.6 x
1.3 x
1.2 x
Resolution
3840x2160 (4K Ultra HD)
854x480
3840x2160 (4K Ultra HD)
1024x768 (XGA)
1920x1080 (Full HD)
3840x2160 (4K Ultra HD)
854x480
3840x2160 (4K Ultra HD)
3840x2160 (4K Ultra HD)
1920x1200
1920x1200
Aspect ratio
16:9, 4:3
16:9, 16:10
16:9
16:9, 4:3, 16:10
16:9
16:9, 4:3
16:9
16:9
16:9, 4:3
16:9, 16:10
16:9, 4:3, 16:10
Brightness (max)
2400 ANSI
250 ANSI
2600 ANSI
3600 ANSI
3100 ANSI
3000 ANSI
150 ANSI
3000 ANSI
3400 ANSI
3600 ANSI
3400 ANSI
Contrast
500000 :1
120000 :1
1200000 :1
15000 :1
15000 :1
1000000 :1
1500 :1
40000 :1
500000 :1
15000 :1
15000 :1
Dynamic contrast
500000 :1
120000 :1
1200000 :1
15000 :1
50000 :1
500000 :1
40000 :1
500000 :1
15000 :1
15000 :1
Image frequency
24p, 30p, 60p, 50p
24p, 30p, 60p, 50p
24p, 60p, 50p
Video formats supported
480p, 576p, 720p, 1080p (Full HD), 1080i, 480i, 576i, 2160p (4K Ultra HD)
480p, 576p, 720p, 1080p (Full HD), 1080i, 480i, 576i
720p, 1080p (Full HD), 1080i, 2160p (4K Ultra HD)
720p, 1080p (Full HD), 1080i
720p, 1080p (Full HD), 1080i, 2160p (4K Ultra HD)
480p, 576p, 720p, 1080p (Full HD), 1080i, 480i, 576i, 2160p (4K Ultra HD)
720p, 1080i
720p, 1080p (Full HD), 2160p (4K Ultra HD)
480p, 576p, 720p, 1080p (Full HD), 1080i, 480i, 576i, 2160p (4K Ultra HD)
720p, 1080p (Full HD), 1080i
720p, 1080p (Full HD), 1080i
Release year
2018
2018
2018
2017
2017
2017
2018
2019
2020
2017
2017
Operational Power Consumption (min-max)
249 - 305 W
55 W
271 - 355 W
282 W
298 W
259 - 348 W
368 W
220 - 305 W
291 W
298 W
Power consumption (standby)
0.5 W
0.5 W
0.35 W
0.5 W
0.5 W
0.5 W
0.2 W
Power management
Mains
Mains, Battery
Mains
Mains, USB
Battery
Mains
Mains