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Acer K138ST
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Acer K138ST Projector

$773.38
$456.99 $316.39 cheaper than 72 days ago
100000:1 WXGA (1280x800) 33dB May 2015
Contrast Ratio Native Projector Resolution 3D Image Projection Noise Level Release Date
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... More
$19.57 Electricity cost over 5 years. Calculate
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Newegg UK
$456.99
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Acer K138ST from PCNation-Outlet
$533.21
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$562.45
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Acer K138ST from Pricebreak Outlet
$577.13
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Acer K138ST from Newegg US
$579.99
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$586.92
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Acer K138ST from Vision ComputersUSA
$599.88
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Acer K138ST from beachaudio
$614.43
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Acer K138ST from Antonline
$625.59
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Acer K138ST from Arsenal PC Inc
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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 Projectors Have Good Reviews

Projectors built by Acer generally have good reviews compared to other manufacturers.

Supports 3D Image Projection

The Acer K138ST supports 3D image projection. Most of the other projectors of a comparable type and age to the K138ST also support 3D image projection.

We think you might also be interested in some of the alternative projectors which support 3D image projection currently available including because of it's better review score, the Philips HDP1550[plb_2138690_price].

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Has a Built-In Speaker

The Acer K138ST has a built-in speaker, as do most of the other similar spec multimedia projectors that have been on the market for a comparable time to the K138ST.

It may also be worth considering one of the alternative projectors with a built-in speaker currently available including because of it's better review score, the Philips HDP1550[plb_2138690_price], or the LG PW600[plb_2860339_price].

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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 a 640 x 480 (VGA) projector, which is the most common resolution supported by comparable spec projectors that have been around for more than a year. The best resolution of all comparable spec multimedia projectors that are a similar age to the K138ST is 4096 x 2160 and the worst is 640 x 480 (VGA).

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Fairly Long Service Life of Lamp in Economic Mode

The Acer K138ST has one of the longer service life of lamp in economic mode (30,000 hours) amongst comparable spec data projectors of this age. Across all the similar spec projectors that were released around the same time as the K138ST the service life of lamp in economic mode range from 800h to 75,000h.

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Quite High Maximum Horizontal Synchronization

At 100 kilohertz, the Acer K138ST has a fairly high maximum horizontal synchronization compared to most of the other multimedia projectors of this age and spec. The lowest maximum horizontal synchronization of projectors that have been on the market for a similar time to the K138ST is 80kHz and the highest is 110kHz.

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Quite Low Power Consumption in Economy Mode

The average power consumption in economy mode of similar spec projectors that have been available for more than a year is 330W, and the power consumption in economy mode range from 38W to 890W. When compared to other multimedia projectors that have been around for around the same time as the K138ST that we have checked the power consumption in economy mode of, the Acer K138ST's power consumption in economy mode of only 38 Watts is one of the lowest.

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9 Reasons Against

Only 100V AC Input Voltage

This projector has a 100 - 240V AC input voltage, which is typical of many similar spec projectors that are a comparable age to it.

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Does Not Support Full HD Projection

Like most of the other projectors of this age and spec, the Acer K138ST does not support Full HD projection.

There are a number of other multimedia projectors which also support Full HD projection that you might want to consider including the Philips HDP1550[plb_2138690_price] which also has a higher rating.

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Does Not Support WiFi Connectivity

Like most of the other projectors of a comparable age and spec to the K138ST, the Acer K138ST does not support WiFi connectivity.

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Very Dim Projector Brightness

The dimmest projector brightness of projectors of a comparable age and spec to the K138ST is 100 ANSI lumens, the brightest is 11,000 ANSI lumens, and the average projector brightness is 3,700 ANSI lumens. The Acer K138ST has one of the dimmer projector brightness (only 800 ANSI lumens) amongst data projectors of this age.

If this 100000:1 contrast ratio projector projector brightness is too dim for you then you might want to look at the Epson EH-TW5350[plb_3024662_price] (2,200 ANSI lumens and higher rated).

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Very Low Maximum Vertical Synchronization

With a maximum vertical synchronization of only 0.12 kilohertz, the Acer K138ST has a quite low maximum vertical synchronization compared to most of the other multimedia projectors that are a comparable age to the K138ST. The maximum vertical synchronization of multimedia projectors of a similar spec and age to the K138ST range from 0.12kHz to 240kHz.

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Only One USB 2.0 Port

The Acer K138ST is a one USB 2.0 port multimedia projector.

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Only One HDMI Port

The Acer K138ST is a one HDMI port data projector.

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Very Small Optical Zoom

The Acer K138ST has a quite small optical zoom (only 1 times zoom factor) compared to most of the other similar spec data projectors that were released around the same time as the K138ST. Across all the similar spec data projectors that were released one year ago the optical zooms range from 1x to 2x, and the average optical zoom is 1.3x.

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Very Short Lamp Service Life

The Acer K138ST has a quite short lamp service life (only 20,000 hours) compared to most of the other 100000:1 contrast ratio data projectors that came out around the same time as the K138ST. Projectors of this type and age have lamp service lives of between 20,000h and 30,000h.

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3 Other reasons to consider the Acer K138ST

Released Over a Year Ago

It was over a year ago when Acer released the K138ST.

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 projectors that were released around the same time as it.

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Average Noise Level

The Acer K138ST has a pretty average noise level (33 decibels) compared to most of the other projectors of a comparable age and spec to the K138ST.

Other projectors with a louder noise level that you might want to look at include the Philips HDP1550[plb_2138690_price] (25dB), or the LG PW600[plb_2860339_price] (34dB) which also has a higher rating.

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Specification

Projector
Contrast Ratio
Native Projector Resolution
Projector Brightness
Maximum Digital Resolution
Vertical Keystone Correction
Minimum Vertical Synchronization
Maximum Horizontal Synchronization
Maximum Vertical Synchronization
Minimum Horizontal Synchronization
Number of Colours
Dynamic Contrast Ratio
Projection Distance
Supported Aspect Ratio
Compatible Screen Size
Native Aspect Ratio
Projection Technology
Supported Number of Colours Display
Lamps
Lamp
Service Life of Lamp in Economic Mode
Lamp Type
Lamp Service Life
Lens System
Optical Zoom
Throw Ratio
Digital Zoom
Focus Mode
Video
Graphics Resolution
Full HD Projection
Ports & Interfaces
USB 2.0 Port
HDMI Port
VGA (D-Sub) Port
HDMI Port
Performance
Noise Level
Noise Level in Economy Mode
Vertical Scan Range
Multimedia
RMS Rated Power
Built-In Speaker
Design
Form Factor
Colour
Product Type
Display
Built-In Display
Power
Power Source
Typical Power Consumption
Power Consumption in Economy Mode
Power Consumption During PowerSave
AC Adapter Input Voltage
AC Input Voltage
Operational Conditions
Relative Humidity Operational Range
Operating Temperature Range
Weight & Dimensions
Weight
Packaging Content
Remote Control Type
Cable Included
Other Features
Audio Input

Expert Reviews

26 October 2015

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…

User Reviews

(1)
Reviewed 17 March 2016 by Amazon Customer
(Verified Purchase)

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…

Running Cost

Hours of Use Per Day: hours
Show running costs over: years
Electricity cost when switched on $19.97
Electricity cost when on standby
@ $0.108264468 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 %
Water cost when switched on
@ $0.00154539824 per litre - Edit water usage and price
litres per hour
Water price $per litre
Annual water price inflation %
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Total running cost over 5 years $19.97
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.
0.13T
Running this projector over 5 years will generate 0.13 tonnes of carbon dioxide (CO2).
4
To offset that much CO2 you would need to plant 4 tree seedlings and grow them for 10 years.

+- Manufacturer's Description

Product Identifiers

Barcodes 00888863023677, 04053162882102, 04713147866250, 04713147866267, 04713147866274

See How Other Projectors Compare to the Acer K138ST

LG PW600 vs Acer K138ST

LG PW600 vs Acer K138ST
LG PW600 Acer K138ST
$ 315.99 $456.99
User Reviews Are Vastly Better
34% Longer Lamp Service Life
25% Lighter
19% Cheaper to Run
1,053.3M Lower Number of Colours
50% Lower RMS Rated Power

Asus P3B vs Acer K138ST

Asus P3B vs Acer K138ST
Asus P3B Acer K138ST
$ 455.99 $456.99
Hugely Better User Reviews
Two More USB 2.0 Ports
10,000h Longer Lamp Service Life
Newer by Five Months
Lower Number of Colours
One Less Built-In Speaker

Philips HDP1690 vs Acer K138ST

Philips HDP1690 vs Acer K138ST
Philips HDP1690 Acer K138ST
$ 999.99 $456.99
23W Higher RMS Rated Power
Significantly Better User Reviews
Two More USB 2.0 Ports
Three HDMI Ports
Older by Five Months
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