Nebula Mars II vs Optoma UHD51A

Mars II vs UHD51A comparison chart

Overall
Nebula Mars II
6.6
Optoma UHD51A
9.6
7
10
Votes 1 1
Rating 5 5
Optoma UHD51A

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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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

User manual

Manual

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
Nebula Mars II
Optoma UHD51A
Nebula Mars II
Optoma UHD51A

Projectors CHooseratoR comparison rating

  • better
  • worse
  • 6.6
  • 9.6
  • 6.6Nebula Mars II
  • 9.6Optoma UHD51A

Nebula Mars II competitors

Optoma UHD51A competitors