ViewSonic PX747-4K vs Optoma UHD51ALV review
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If you have already decided that you want to buy a new projector, but still don’t know what exactly you want, the ViewSonic PX747-4K vs Optoma UHD51ALV comparison is here to offer you two decent solutions. Based on our rating, PX747-4K has a total rating of 7.3 out of 10 versus 9.6 for UHD51ALV.
Advantages ViewSonic PX747-4K over Optoma UHD51ALV
- Better brightness: 3500 vs 3000 lumens
- Lower noise level, 27 dB vs 28 dB
- Lower power consumption, 310 W vs 317 W
Advantages Optoma UHD51ALV over ViewSonic PX747-4K
- Bigger projection screen size: 34-302 inch vs 60-200 inch
- 3D support
- Wireless connection enabled
- More USB ports: 3 vs 1
- Stereo sound vs mono from integrated speakers
Common features and specifications
- 4K UHD resolution
- HDR-compatible
- Equal lamp life (normal mode): 4000 hours
- Equal HDMI connectors quantity: 2
- Integrated speakers
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Common
Product
ViewSonic PX747-4K
Optoma UHD51ALV
Model
PX747-4K
UHD51ALV
Brand
ViewSonic
Optoma
Reviews
523
146
Resolution
Native resolution
3840 x 2160
3840 x 2160
Max resolution (resized)
3840 x 2160
4096 x 2160
Resolution abbreviation
4K UHD
4K UHD
Properties
Projection screen size, inch
60-200
34-302
Projection distance, m/ft
0.9 - 11.6/2.9 - 38
0.8 - 10.6/2.9 - 34.9
Aspect ratio
16:9
16:9
Brightness, lumens
3500
3000
Contrast ratio
12000:1
500000:1
Throw ratio range
1.47:1 - 1.76:1
1.21:1 - 1.59:1
Color reproduction
1.07 billion
Projection system
DLP
DLP
Noise level, dBA
27
28
Power consumption, W
310
317
Features
Remote control
HDR
3D
Security
kensington lock, password protection
kensington lock, password protection
Projection method
front, rear, ceiling mount, tabletop
front, rear, ceiling mount, tabletop
Wireless connection
Additional features
has not
Amazon Alexa, Google Assistant, DLP
Lamp
Lamp type, W
240
240
Lamp life (normal mode), hours
4000
4000
Lamp life (eco mode), hours
15000
10000
Connectivity
HDMI
2
2
VGA input
1
1
Composite video input (RCA)
0
0
Audio input (RCA)
0
0
Audio input (3.5mm)
1
1
Audio output (3.5mm)
1
1
SPDIF (optical)
0
1
Ethernet (RJ45)
0
1
MHL
RS-232
0
1
12V trigger
1
1
USB
1
3
USB (service)
1
1
Audio
Integrated speakers
Speaker power, W
10
5
Sound type
mono
stereo
Lens
F-number
2.5 - 3.26
Focal length, mm
20.9 - 32.6
Lens shift, %
vertical +/- 10
Zoom ratio
1.2x
1.3x
Settings
Keystone adjustment vertical, +- degrees
40
Keystone adjustment horizontal, +- degrees
Operating temperature
Min, C/F
0/32
5/41
Max, C/F
40/104
40/104
Dimensions
Size W x H x D, сm/inches
33 x 12.7 x 25.4/13.1 x 5.3 x 10.3
39.1 x 12.9 x 28,1/15.4 x 5.1 x 11.1
Weight, kg/pounds
4.01/8.84
5.3/11.7
Other
Release year
2018
2018
Projectors SoundStrokes Art comparison rating
- 7.3ViewSonic PX747-4K
- 9.6Optoma UHD51ALV
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