Your presentations can now fit in a pocket - or your palm. Be PC-free: Project your content directly from a plugged-in USB drive, or SD Card, or even a smartphone. Show your ideas in HD quality by...
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9 Reasons For
Easy to Use
One person who reviewed this projector considered that it was comfortable and easy to hold. Expert website Liveatpc.com wrote “So, when Acer placed this short throw projector in my hands, I was excited to watch all my backlogged” in their Acer K138ST review.
Good Technical Features
One customer who reviewed the Acer K138ST considered that it had good features. In October Amazon Customer wrote in their review of the Acer K138ST on Amazon “Also, there are many fake features like Bluetooth”.
Acer Has Good Reviews for Its Multimedia Projectors
Acer is one of the better rated data projector manufacturers according to average expert and owner review score data that we have collected for all projectors.
Supports 3D Image Projection
Like most of the other projectors of a comparable age and type to the K138ST, the Acer K138ST supports 3D image projection.
We compared all the other projectors which support 3D image projection to this data projector and we think the Philips HDP1590TV[plb_2930725_price] which has better reviews is also worth considering.
Has a Built-In Speaker
The Acer K138ST has a built-in speaker, as do most of the other 100000:1 contrast ratio projectors that were launched around the same time as the K138ST.
Other data projectors with a built-in speaker currently available that you might also want to look at include because of it's better review score, the Philips HDP1590TV[plb_2930725_price], or the LG PW600[plb_2860339_price].
1920 X 1080 (HD 1080) Graphics Resolution
The Acer K138ST supports a maximum resolution of 1920 x 1080 (HD 1080). That's over six times the resolution of the most frequently found graphics resolution of 640 x 480 (VGA). Across all comparable spec projectors that have been on the market for a similar time to the K138ST the worst resolution is 640 x 480 (VGA) and the best is 4096 x 2160.
+4 More reasons for
Quite Long Service Life of Lamp in Economic Mode
Across all the projectors of a similar type and age to the K138ST the service life of lamp in economic mode range from 800h to 75,000h, and the average service life of lamp in economic mode is 9,500h. The Acer K138ST has one of the longer service life of lamp in economic mode (30,000 hours) amongst similar spec data projectors of this age.
Quite High Maximum Horizontal Synchronization
With a maximum horizontal synchronization of 100 kilohertz, the Acer K138ST has a fairly high maximum horizontal synchronization compared to most of the other data projectors of this age and type. Projectors that were released one year ago have maximum horizontal synchronization of between 80kHz and 110kHz.
Quite Low Power Consumption in Economy Mode
With a power consumption in economy mode of only 38 Watts, the Acer K138ST has one of the lowest power consumption in economy mode amongst similar spec multimedia projectors of this age. Across all the similar spec data projectors that were launched more than a year ago the power consumption in economy mode range from 38W to 890W.
8 Reasons Against
A Bit Expensive
One Acer K138ST owner wrote that the Acer K138ST was not good value for money. Amazon Customer said on Amazon a few weeks ago “The qualty of the picture is not really good regarding its high price”.
Only 100V AC Input Voltage
This projector has a 100 - 240V AC input voltage, which is the most frequently found AC input voltage on projectors that are a comparable age to it.
Does Not Support WiFi Connectivity
Most 100000:1 contrast ratio projectors that have been available for more than a year do not support WiFi connectivity. The Acer K138ST is no exception to this as it too does not support WiFi connectivity.
We think you might also be interested in alternative data projectors which also support WiFi connectivity including the Philips HDP1590TV[plb_2930725_price] which is also higher rated.
Very Dim Projector Brightness
The dimmest projector brightness of similar spec data projectors that have been available for a comparable time to the K138ST is 100 ANSI lumens and the brightest is 11,000 ANSI lumens. With a projector brightness of only 800 ANSI lumens, the Acer K138ST has one of the dimmer projector brightness amongst data projectors of this age.
If this data projector projector brightness is not bright enough for you then you might want to look at the Epson EH-TW5350[plb_3024662_price] (2,200 ANSI lumens) which is also higher rated.
+5 More reasons against
Very Low Maximum Vertical Synchronization
Comparable spec data projectors that have been available for around the same time as the K138ST have maximum vertical synchronization of between 0.085kHz and 240kHz. The Acer K138ST has one of the lower maximum vertical synchronization (only 0.12 kilohertz) amongst data projectors of this age.
Very Small Optical Zoom
At only 1 times zoom factor, the Acer K138ST has a quite small optical zoom compared to most of the other comparable spec data projectors that have been on the market for more than a year. Similar spec multimedia projectors that have been around for a comparable time to the K138ST have optical zooms of between 1x and 2x.
Very Short Lamp Service Life
The Acer K138ST has one of the shorter lamp service lives (only 20,000 hours) amongst similar spec projectors of this age. 100000:1 contrast ratio projectors that came out around the same time as the K138ST have lamp service lives of between 20,000h and 30,000h, and the average lamp service life is 28,000h.
After checking the price of data projectors of a comparable age and type they range in price from £352 to £446. We think that this Acer data projector looks expensive compared to other data projectors of a comparable age and type.
3 Other reasons to consider the Acer K138ST
Running Costs Are OK
The K138ST has an average running cost of £26 over 1 year based on average energy prices and usage levels, which is typical compared to the other 5 multimedia projectors of a comparable age and spec.
WXGA (1280x800) Native Projector Resolution
This projector has a native projector resolution of WXGA (1280x800), which is the most commonly found native projector resolution on 100000:1 contrast ratio projectors that have been available for a similar time to it.
Average Noise Level
With a noise level of 33 decibels, the Acer K138ST has a relatively typical noise level compared to most of the other projectors of a comparable age and type to the K138ST.
Other multimedia projectors with a louder noise level that you might want to look at include the Philips HDP1590TV[plb_2930725_price] (25dB), or the LG PW600[plb_2860339_price] (34dB) which also has a higher rating.
Gone are the days when projectors were only used for presentations; now you can watch movies on your wall and not compromise on quality, sound and space. So, when Acer placed this short throw... Read more…
This product is good but it's not really a portable. It is smaller than others but there's no battery installed to take it away from home. It should be plugged into electricity all the time.
Also,... Read more…
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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 Acer K138STuses then please let us know by entering those figures in the boxes above.
Running this projector over 5 years will generate 0.13 tonnes of carbon dioxide (CO2).
To offset that much CO2 you would need to plant 4 tree seedlings and grow them for 10 years.
Previous and future annual running costs of the Acer K138ST assuming future electricity price inflation of 0.0600% per year. Edit inflation assumptions