Aug 27, 2020
This Optoma UHD15A review is targeted for users who seek true realism in every scene. This device is a 4K Ultra HD projector that is unmatched in home entertainment. It will provide you with superb c...
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Nebula Mars II vs Optoma UHD51A
Nebula and Optoma
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Common
Product
Nebula Mars II
Optoma UHD51A
Model
Mars II
UHD51A
Brand
Nebula
Optoma
Reviews
517
146
Resolution
Native resolution
1280 × 720
3840 x 2160
Max resolution (resized)
1280 × 720
3840 x 2160
Resolution abbreviation
HD
4K UHD
Properties
Projection screen size, inch
30-150
30-300
Projection distance, m/ft
1 - 3/3.2 - 9.8
0.8 - 10.6/2.9 - 34.8
Aspect ratio
16:9
16:9
Brightness, lumens
300
2400
Contrast ratio
1000:1
500000:1
Throw ratio range
1.21:1 - 1.59:1
Color reproduction
1.07 billion
Projection system
DLP
DLP
Noise level, dBA
32
28
Power consumption, W
57
317
Features
Remote control
HDR
3D
Security
kensington lock, password protection
Projection method
front, rear, tabletop
front, rear, ceiling mount, tabletop
Wireless connection
Additional features
Android OS, Bluetooth, Wi-Fi
DLP, Amazon Alexa, Google Assistant
Lamp
Lamp type, W
240
Lamp life (normal mode), hours
30000
4000
Lamp life (eco mode), hours
30000
15000
Connectivity
HDMI
1
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
1
3
USB (service)
0
1
Audio
Integrated speakers
Speaker power, W
5
5
Sound type
stereo
stereo
Lens
F-number
2.5 - 3.26
Focal length, mm
20.91 - 32.62
Lens shift, %
vertical +/- 15
Zoom ratio
1.3x
Settings
Keystone adjustment vertical, +- degrees
Keystone adjustment horizontal, +- degrees
Operating temperature
Min, C/F
0/32
5/41
Max, C/F
35/95
40/104
Dimensions
Size W x H x D, сm/inches
12.2 × 13.8 × 17.8/ 4.8 × 5.4 × 7
39.2 x 12.9 x 28.1/15.4 x 5.1 x 11.1
Weight, kg/pounds
1.4/2.2
6.5/11.7
Other
Release year
2018
2018
Projectors CHooseratoR comparison rating
- 6.6Nebula Mars II
- 9.6Optoma UHD51A
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