Optoma HD27HDR vs Optoma UHD51A

HD27HDR vs UHD51A comparison chart

Overall
Optoma HD27HDR
8
Optoma UHD51A
9.6
8
10
Votes 1 1
Rating 5 5
Optoma HD27HDR

Aug 27, 2020

In this Optoma HD27HDR review I’d like to introduce you to an incredible projector, which produces 1080p HDR images with a brightness of 3400 lumens. From the first glance, you’ll underst...

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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

Optoma HD27HDR
Optoma UHD51A

Model

HD27HDR
UHD51A

Brand

Optoma
Optoma

Reviews

860
146

Resolution

Native resolution

1920 x 1080
3840 x 2160

Max resolution (resized)

3840 x 2160
3840 x 2160

Resolution abbreviation

Full HD
4K UHD

Properties

Projection screen size, inch

28-305
30-300

Projection distance, m/ft

0.9 - 10.9/3.2 - 35.9
0.8 - 10.6/2.9 - 34.8

Aspect ratio

16:9
16:9

Brightness, lumens

3400
2400

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
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
DLP, Amazon Alexa, Google Assistant

Lamp

Lamp type, W

203
240

Lamp life (normal mode), hours

6000
4000

Lamp life (eco mode), hours

10000
15000

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
20.91 - 32.62

Lens shift, %

vertical +/- 15

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

User manual

Manual

Dimensions

Size W x H x D, сm/inches

32 x 11 x 25/12.5 x 4.3 x 9.8
39.2 x 12.9 x 28.1/15.4 x 5.1 x 11.1

Weight, kg/pounds

2.8/6.2
6.5/11.7

Other

Release year

2018
2018
Optoma HD27HDR
Optoma UHD51A
Optoma HD27HDR
Optoma UHD51A

Projectors CHooseratoR comparison rating

  • better
  • worse
  • 8
  • 9.6
  • 8Optoma HD27HDR
  • 9.6Optoma UHD51A

Optoma HD27HDR competitors

Optoma UHD51A competitors