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14 Reasons For
Based on 2,052 user and expert reviews, Benq has good ratings for its multimedia projectors. Benq also has good ratings specifically within its 12000:1 contrast ratio multimedia projectors range.
100 - 240V AC Input Voltage
This multimedia projector has a 100 - 240V AC input voltage, which is typical of many data projectors of a similar spec and age to it.
Has a Built-In Speaker
The Benq TH681 has a built-in speaker. Most of the other multimedia projectors that were launched more than a year ago also have a built-in speaker.
There are a number of alternative multimedia projectors with a built-in speaker currently available that you might want to consider including the PJD5153 (£218.31), or the PJD5155 (£243.71) both from Viewsonic which has a better Rating.
Supports 3D Image Projection
The Benq TH681 supports 3D image projection, unlike most of the other data projectors that have been on the market for around the same time as the TH681 which do not support 3D image projection.
Other projectors which support 3D image projection currently available which you might want to consider include because of it's better review score, the Viewsonic PJD5155 (£243.71), or the Optoma H181X (£259.00).
It is worth considering other projectors which also support 3D image projection including the Viewsonic PJD5253 (£316.98).
Supports Full HD Projection
The Benq TH681 supports Full HD projection. Most of the other projectors that have been around for around the same time as the TH681 also support Full HD projection.
It may also be worth also looking at one of the other projectors which support Full HD projection currently available including the Optoma H181X (£259.00), or the Benq TH681+ which has a better Rating.
There are a number of alternative projectors which also support Full HD projection which you might want to look at including the Viewsonic PLED-W800 (£513.32).
1080p (1920x1080) Native Projector Resolution
The highest resolution of the Benq TH681 is 1080p (1920x1080). That's over two times the resolution of a XGA (1024x768) projector, which is the most common resolution. The worst resolution of all multimedia projectors of this age and spec is nHD (640x360) and the best is DCI 4K (4096 x 2160).
We compared all the other multimedia projectors that have a resolution of 1080p (1920x1080) to this projector and we think the Epson Home Cinema 3000, the Benq HC1200 (£2,348.37), and the Acer H7550 which has a better Rating is also worth considering.
If you are looking for a data projector with a higher resolution then you might also want to consider the Epson EB-Z9875U (WUXGA (1920x1200)), the Benq SU917 (£968.40) (WUXGA (1920x1200)), or the Barco CNWU-81B (WUXGA (1920x1200)).
+9 More reasons for
1920 X 1200 (WUXGA) Graphics Resolution
The Benq TH681 supports a maximum resolution of 1920 x 1200 (WUXGA). That's over seven times the resolution of a 640 x 480 (VGA) data projector, which is the most frequently found resolution supported by comparable spec multimedia projectors that have been on the market for a similar time to the TH681. The best resolution of all multimedia projectors of this type and age is 4096 x 2160 and the worst is 640 x 480 (VGA).
If the resolution of this data projector is not high enough for you then you might also want to consider the NEC M353WS (£795.60) (640 x 480 (VGA)|720 x 480|720 x 576|800 x 600 (SVGA)|832 x 624|1024 x 768 (XGA)|1152 x 864 (XGA+)|1152 x 870|1280 x 1024 (SXGA)|1280 x 720 (HD 720)|1280 x 768 (WXGA)|1280 x 800 (WXGA)|1280 x 960|1360 x 768 (WXGA)|1366 Ñ 768|1400 x 1050 (SXGA+)|1440 x 900 (WXGA+)|1600 x 1200 (UXGA)|1600 x 900|1680 x) which also has a higher Rating.
Quite Quiet Noise Level
At only 33 decibels, the Benq TH681 has a fairly quiet noise level compared to most of the other projectors that came out more than a year ago. Across all the projectors that are a comparable age to the TH681 the noise levels range from 28dB to 45dB.
Alternative 33dB noise level data projectors currently available that you might want to consider include because of it's better review score, the Benq TH681+.
Alternative multimedia projectors with a louder noise level that you might want to look at include the CTWU-61B (33dB), or the CTHD-61B (33dB) both from Barco.
Three VGA (D-Sub) Ports
The Benq TH681 is a three VGA (D-Sub) port multimedia projector. Most of the other projectors that have been on the market for a comparable time to the TH681 only have between one and two VGA (D-Sub) ports.
Fairly Long Service Life of Lamp in Economic Mode
Multimedia projectors of this type and age have service life of lamp in economic mode of between 800h and 30,000h. With a service life of lamp in economic mode of 6,500 hours, the Benq TH681 has a fairly long service life of lamp in economic mode compared to most of the other comparable spec multimedia projectors that were released one year ago.
Fairly High RMS Rated Power
The lowest RMS rated power of data projectors of a similar age and type to the TH681 is 1W, the highest is 20W, and the average RMS rated power is 9W. With an RMS rated power of 10 Watts, the Benq TH681 has a quite high RMS rated power compared to most of the other comparable spec projectors that were released one year ago.
Quite Low Power Consumption in Economy Mode
Comparable spec projectors that were released around the same time as the TH681 have power consumption in economy mode of between 38W and 890W. The Benq TH681 has one of the lower power consumption in economy mode (only 220 Watts) amongst comparable spec data projectors of this age.
Projectors of this type and age have widths of between 170mm and 670mm. The Benq TH681 is one of the narrower similar spec data projectors that have been available for a comparable time to the TH681 (only 311.81 millimeters) amongst projectors of this age.
With a weight of only 2.6 kilograms, the Benq TH681 is one of the lighter projectors of a similar age and spec to the TH681 amongst multimedia projectors of this age. The lightest projector of a comparable type and age to the TH681 is 790g heavy, the heaviest is 33kg, and the average weight is 9.2kg.
5 Reasons Against
Does Not Support WiFi Connectivity
Most comparable spec data projectors that have been around for around the same time as the TH681 do not support WiFi connectivity. The Benq TH681 is no exception to this as it too does not support WiFi connectivity.
It is worth also looking at other data projectors which also support WiFi connectivity including the NEC PX700W (£5,532.00).
Quite Dim Projector Brightness
The projector brightness of multimedia projectors that came out more than a year ago range from 600 ANSI lumens to 11,000 ANSI lumens, and the average projector brightness is 5,000 ANSI lumens. At only 3,200 ANSI lumens, the Benq TH681 has a quite dim projector brightness compared to most of the other projectors of a similar age and type to the TH681.
Other 3,200 ANSI lumens brightness multimedia projectors currently available which you might also want to look at include the Viewsonic PJD5153 (£218.31), or the Benq TH681+ which has a better Rating.
Data projectors with a brighter projector brightness that might also be worth considering include the MX726 (£586.36) (4,000 ANSI lumens), or the MW727 (£610.98) (4,200 ANSI lumens) both from Benq or the Sony VPL-CX236 (£870.00) (4,100 ANSI lumens).
Very Low Number of Colours
The average number of colours of similar spec data projectors that have been around for a comparable time to the TH681 is 600M, and the numbers of colours range from 1M to 1,100M. At only 1.07 million, the Benq TH681 has a fairly low number of colours compared to most of the other data projectors that were released one year ago.
Only One USB 2.0 Port
The Benq TH681 is a one USB 2.0 port data projector. Most of the other projectors that have been around for around the same time as the TH681 have one USB 2.0 port.
+2 More reasons against
Only One HDMI Port
Most similar spec data projectors that were released more than a year ago have one HDMI port, including the Benq TH681 which has one HDMI port.
2 Other reasons to consider the Benq TH681
Released Over Two Years Ago
Benq released the TH681 over two years ago.
Average Running Costs
Based on typical usage levels and energy prices we estimate that the 1 year running cost of the TH681 is £91, which is typical compared to the other multimedia projectors of this type and age.
Native Projector Resolution
3,200 ANSI lumens
Vertical Keystone Correction
-40 - 40
Number of Colours
Compatible Screen Size
45 - 300
Native Aspect Ratio
Supported Number of Colours Display
1.073 billion colours
Service Life of Lamp in Economic Mode
Lamp Service Life
2.59 - 2.87
Focal Length Range
16.88 - 21.88
3D Image Projection
1920 x 1200 (WUXGA), 640 x 480 (VGA)
Full HD Projection
Analog Signal Format System
NTSC, PAL, SECAM
Frame packing, Frame Sequential, Side by side, Top and bottom
Ports & Interfaces
Serial Interface Type
Audio in Port
Composite Video in Port
USB Connector Type
USB 2.0 Port
VGA (D-Sub) Port
AC Power in
Ethernet LAN Connection
Integrated Card Reader
Noise Level in Economy Mode
Horizontal Scan Range
15 - 102
Vertical Scan Range
23 - 120
On Screen Display Language
ARA, BUL, CHI (SIMPL), CHI (TR), CRO, CZE, DAN, DEU, DUT, ENG, ESP, FIN, FRE, GRE, HUN, ITA, JPN, KOR, NOR, POL, POR, RUM, RUS, SWE, THA, TUR
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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 Benq TH681uses then please let us know by entering those figures in the boxes above.
Running this projector over 5 years will generate 0.45 tonnes of carbon dioxide (CO2).
To offset that much CO2 you would need to plant 12 tree seedlings and grow them for 10 years.
Previous and future annual running costs of the Benq TH681 assuming future electricity price inflation of 0.0600% per year. Edit inflation assumptions