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13 Reasons For
We checked 1,712 owner and expert reviews for Optoma projectors and found that on average Optoma has good reviews. We also found that Optoma has good reviews specifically for its data projectors.
Low Running Costs
The average 1 year running cost of the EH331 is only £76 based on typical energy prices, which makes it one of the cheaper to run recently released data projectors.
Only Released Seven Months Ago
As one of the newer multimedia projectors, this multimedia projector is likely to have more advanced features.
Supports Full HD
The Optoma EH331 supports full HD. Most of the other data projectors that came out in the last year do not support full HD.
Alternative multimedia projectors which support full HD currently available that you might also want to look at include the Viewsonic PJD7836HDL[plb_3737503_price], or the Optoma EH330[plb_3857165_price] which is cheaper.
We think you might also be interested in other multimedia projectors which also support full HD including the Optoma EH345[plb_3907680_price].
The Optoma EH331 supports 3D, unlike most of the other similar spec projectors that have been on the market for the last year which do not support 3D.
We think you might also be interested in some of the alternative multimedia projectors which support 3D currently available including cheaper projectors such as the Viewsonic PJD7836HDL[plb_3737503_price].
Other projectors which also support 3D that you might want to consider include the Optoma EH345[plb_3907680_price], or the Benq W1210ST[plb_3888834_price].
Has a Built-In Speaker(s)
Like most of the other latest data projectors, the Optoma EH331 has a built-in speaker(s).
There are a number of other multimedia projectors with a built-in speaker(s) currently available that you might also want to look at including the Viewsonic PJD7836HDL[plb_3737503_price], or the Optoma EH330[plb_3857165_price] which is cheaper.
We compared this data projector to all the other projectors with a built-in speaker(s) and we think the Optoma EH345[plb_3907680_price] is also worth considering.
+8 More reasons for
1080p (1920x1080) Projector Native Resolution
This multimedia projector has a projector native resolution of 1080p (1920x1080), which is the most commonly found projector native resolution on data projectors that have been on the market for the last year.
1920 X 1080 (HD 1080) Supported Graphics Resolutions
The Optoma EH331 supports a maximum resolution of 1920 x 1080 (HD 1080). That's over six times the resolution of the most frequently found supported graphics resolutions of 640 x 480 (VGA) (which is also supported by this multimedia projector). This projector also support supported graphics resolutionss of 800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 768 (WXGA) and 1360 x 768 (WXGA) and 1600 x 1200 (UXGA). Data projectors that are a similar age to the EH331 supported graphics resolutionss range from 640 x 480 (VGA) (worst) to 1920 x 1200 (WUXGA) (best).
Two Number of Built-In Speakerss
The Optoma EH331 is a two number of built-in speakers data projector.
Quite Long Service Life of Lamp
The service life of lamps of data projectors that have been available for around the same time as the EH331 range from 1,500h to 30,000h, and the average service life of lamp is 7,000h. With a service life of lamp of 10,000 hours, the Optoma EH331 has one of the longer service life of lamps amongst data projectors of this age.
Quite Quiet Noise Level
The Optoma EH331 has a quite quiet noise level (only 29 decibels) compared to most of the other data projectors that are a similar age to the EH331. The average noise level of similar spec multimedia projectors that have been on the market for around the same time as the EH331 is 33dB, and the noise levels range from 22dB to 40dB.
Alternative projectors with a louder noise level that you might want to look at include the Pro7827HD[pl_3305117_price] (36dB and cheaper), the PJD7326[pl_3627578_price] (36dB and cheaper), or the PJD7526W[pl_3627579_price] (36dB and cheaper) all from Viewsonic.
At only 2.2 kilograms, the Optoma EH331 is quite light compared to most of the other new data projectors. The lightest projector that was released in the last 12 months is 2.7g heavy and the heaviest is 28kg.
Very Low Power Consumption (economy Mode)
The power consumption (economy mode)s of data projectors that have been on the market for around the same time as the EH331 range from 180W to 850W, and the average power consumption (economy mode) is 260W. At only 187 Watts, the Optoma EH331 has a fairly low power consumption (economy mode) compared to most of the other data projectors that are a comparable age to the EH331.
8 Reasons Against
Does Not Support Wi-Fi
The Optoma EH331 does not support wi-Fi, although this is within the context that most of the other latest data projectors also do not support wi-Fi.
Very Small Uniformity
The Optoma EH331 has one of the smaller uniformitys (only 70 percent) amongst comparable spec multimedia projectors of this age. The uniformitys of comparable spec projectors that have been around for around the same time as the EH331 range from 70% to 90%, and the average uniformity is 79%.
Very Small Bulb Power
Projectors that came out around the same time as the EH331 have bulb powers of between 190W and 470W, and the average bulb power is 270W. At only 195 Watts, the Optoma EH331 has a quite small bulb power compared to most of the other new data projectors.
Very Low Horizontal Synchronization (max)
At only 91 kilohertz, the Optoma EH331 has a quite low horizontal synchronization (max) compared to most of the other data projectors that were launched around the same time as the EH331. Across all the comparable spec multimedia projectors that are a similar age to the EH331 the horizontal synchronization (max)s range from 0.1kHz to 100,000kHz.
+5 More reasons against
Quite Low RMS Rated Power
When compared to other data projectors that have been available for around the same time as the EH331 that we have assessed, the RMS rated power of the Optoma EH331 of only 2 Watts is one of the lowest. The average RMS rated power of newly released data projectors is 8.3W.
Only One HDMI Ports Quantity
The Optoma EH331 is a one HDMI ports quantity data projector.
Only One Audio (L,R) in
The Optoma EH331 is a one audio (L,R) in data projector. Most of the other projectors that are a comparable age to the EH331 have between one and two audio (L,R) ins.
Quite Small Matrix Size
The Optoma EH331 has one of the smaller matrix sizes (only 0.65 inches) amongst data projectors of this age. The matrix sizes of latest data projectors range from 0.55" to 0.76".
1 Other reason to consider the Optoma EH331
Average Projector Brightness
At 3,300 ANSI lumens, the Optoma EH331 has a relatively standard projector brightness compared to most of the other recently released data projectors.
Projector Native Resolution
3,300 ANSI lumens
Keystone Correction, Vertical
Horizontal Synchronization (max)
Horizontal Synchronization (min)
1.2 - 12
Supported Aspect Ratios
Screen Size Compatibility
27.88 - 305.3
Native Aspect Ratio
Number of Colours
1.073 billion colours
Service Life of Lamp (economic Mode)
Service Life of Lamp
1.48 - 1.62:1, 1.48 - 1.62
Aperture Range (F-F)
2.5 - 2.6
Focal Length Range (f-F)
21.86 - 24
Supported Graphics Resolutions
640 x 480 (VGA), 800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 768 (WXGA), 1280 x 768, 1360 x 768 (WXGA), 1600 x 1200 (UXGA), 1920 x 1080 (HD 1080)
Analog Signal Format System
NTSC, NTSC, NTSC 4.43, NTSC, NTSC M, PAL, PAL, PAL B, PAL, PAL D, PAL, PAL G, PAL, PAL H, PAL, PAL I, PAL, PAL M, PAL, PAL N, SECAM, SECAM, SECAM B, SECAM, SECAM D, SECAM, SECAM G, SECAM, SECAM K, SECAM, SECAM K, SECAM K1, SECAM, SECAM L
Supported 3D Formats
Frame Sequential, Frame packing, Side by side
Ports & Interfaces
Serial Interface Type
Audio (L,R) Out
Audio (L,R) in
Composite Video in
USB 2.0 Ports Quantity
HDMI Ports Quantity
VGA (D-Sub) Ports Quantity
AC (power) in
Optical Disc Player Type
Noise Level (economic Mode)
Horizontal Scan Range
15 - 91
Vertical Scan Range
24 - 85
On Screen Display (OSD) Languages
ALB, CHI (SIMPL), CHI (TR), CZE, DAN, DEU, DUT, ENG, ESP, FIN, FRE, GRE, HUN, IND, ITA, JPN, KOR, NOR, POL, POR, RUM, RUS, SWE, THA, TUR, VIE
On Screen Display (OSD)
RMS Rated Power
Number of Built-In Speakers
Cable Lock Slot
Cable Lock Slot Type
Colour of Product
Power Consumption (standby)
Power Consumption (typical)
Power Consumption (economy Mode)
Auto Power Off
AC Input Frequency
50, 50/60, 60
AC Input Voltage
100, 100 - 240
0 - 3000
Operating Relative Humidity (H-H)
0 - 85
Operating Temperature (T-T)
5 - 40
Weight & Dimensions
Remote Control Type
Handheld Remote Control
Quick Start Guide
Hours of Use Per Day: hours
Show running costs over: years
Electricity cost when switched on
Electricity cost when on standby
@ £0.139 per kwh - Edit electricity price and usage
kwh per hour
kwh per hour left on standby
Electricity price £per kilowatt hour
Annual electricity price inflation %
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Water cost when switched on
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litres per hour
Water price £per litre
Annual water price inflation %
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Submit Energy Consumption Figures
Total running cost over 5 years
Running costs for this projector have been estimated based on other similar projectors. If you know how much electricity and water the Optoma EH331uses then please let us know by entering those figures in the boxes above.
Running this projector over 5 years will generate 0.38 tonnes of carbon dioxide (CO2).
To offset that much CO2 you would need to plant 10 tree seedlings and grow them for 10 years.
Previous and future annual running costs of the Optoma EH331 assuming future electricity price inflation of 0.0600% per year. Edit inflation assumptions