Optoma HD27HDR 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 Optoma HD27HDR vs Optoma UHD51ALV comparison is here to offer you two decent solutions. Based on our rating, HD27HDR has a total rating of 8 out of 10 versus 9.6 for UHD51ALV.
Advantages Optoma HD27HDR over Optoma UHD51ALV
- Better brightness: 3400 vs 3000 lumens
- Lower noise level, 26 dB vs 28 dB
- Lower power consumption, 236 W vs 317 W
- Longer lamp life (normal mode): 6000 vs 4000 hours
Advantages Optoma UHD51ALV over Optoma HD27HDR
- Bring the cinematic 4K UHD experience home with the UHD51ALV
- Bigger projection screen size: 34-302 inch vs 28-305 inch
- Wireless connection enabled
- Stereo sound vs mono from integrated speakers
Common features and specifications
- HDR-compatible
- 3D support
- Equal HDMI connectors quantity: 2
- Integrated speakers
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Common
Product
Optoma HD27HDR
Optoma UHD51ALV
Model
HD27HDR
UHD51ALV
Brand
Optoma
Optoma
Reviews
857
146
Resolution
Native resolution
1920 x 1080
3840 x 2160
Max resolution (resized)
3840 x 2160
4096 x 2160
Resolution abbreviation
Full HD
4K UHD
Properties
Projection screen size, inch
28-305
34-302
Projection distance, m/ft
0.9 - 10.9/3.2 - 35.9
0.8 - 10.6/2.9 - 34.9
Aspect ratio
16:9
16:9
Brightness, lumens
3400
3000
Contrast ratio
50000:1
500000:1
Throw ratio range
1.48:1 - 1.62:1
1.21:1 - 1.59:1
Color reproduction
1.07 billion
Projection system
DLP
DLP
Noise level, dBA
26
28
Power consumption, W
236
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
DLP
Amazon Alexa, Google Assistant, DLP
Lamp
Lamp type, W
203
240
Lamp life (normal mode), hours
6000
4000
Lamp life (eco mode), hours
10000
10000
Connectivity
HDMI
2
2
VGA input
0
1
Composite video input (RCA)
0
0
Audio input (RCA)
0
0
Audio input (3.5mm)
0
1
Audio output (3.5mm)
1
1
SPDIF (optical)
0
1
Ethernet (RJ45)
0
1
MHL
RS-232
0
1
12V trigger
0
1
USB
0
3
USB (service)
1
1
Audio
Integrated speakers
Speaker power, W
10
5
Sound type
mono
stereo
Lens
F-number
2.5 - 2.67
2.5 - 3.26
Focal length, mm
21.86 - 24
20.9 - 32.6
Lens shift, %
vertical +/- 10
Zoom ratio
1.1x
1.3x
Settings
Keystone adjustment vertical, +- degrees
40
Keystone adjustment horizontal, +- degrees
Operating temperature
Min, C/F
5/41
5/41
Max, C/F
40/104
40/104
Dimensions
Size W x H x D, сm/inches
32 x 11 x 25/12.5 x 4.3 x 9.8
39.1 x 12.9 x 28,1/15.4 x 5.1 x 11.1
Weight, kg/pounds
2.8/6.2
5.3/11.7
Other
Release year
2018
2018
Projectors SoundStrokes Art comparison rating
- 8Optoma HD27HDR
- 9.6Optoma UHD51ALV
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