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Acer K138ST
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Acer K138ST Projector

£469.98
£299.00 £170.98 cheaper than 26 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
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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.

Read more Less Chart Edit

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].

Read more Less Chart Edit

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.

Chart Edit

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.

Chart Edit

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.

Chart Edit

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.

Chart Edit

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.

Chart Edit

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.

Read more Less Chart Edit

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.

Read more Less Chart Edit

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.

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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.

Chart Edit

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.

Chart Edit

Expensive

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.

Chart Edit

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.

Read more Less Chart Edit

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
Zoom Capability
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
3D Image Projection
Graphics Resolution
Full HD Projection
3D-Ready
HD-Ready
Ports & Interfaces
DC-In Jack
USB 2.0 Port
HDMI Port
VGA (D-Sub) Port
HDMI Port
AC Power in
Performance
Noise Level
Mac Operating System
Windows Operating System
Noise Level in Economy Mode
Vertical Scan Range
Plug and Play
Multimedia
Built-In Speaker
RMS Rated Power
Built-In Speaker
Design
Ceiling Mountable
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
Carrying Case
Manual
User Guide
Remote Control Type
Handheld Remote Control
Battery Included
Quick Start Guide
AC Adapter Included
Cable Included
Other Features
Audio Input
Audio Output Port

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 £25.64
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 %
Water cost when switched on
@ £0.003474 per litre - Edit water usage and price
litres per hour
Water price £per litre
Annual water price inflation %
Submit Energy Consumption Figures
Total running cost over 5 years £25.64
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

Manufacturer Part Numbers acer k138, acer k138s, apple k138, apple k138s, acer k138st, acer p238840, apple k138st, acer n167504, acer k138sti, special k138, acer acerk138, acer 1280x800, acer p238840p, acer n167504w, special k138s, acer cme100w01, special k138st, acer acerk138s, acer mrjlh1100, acer acerk138st, acer mrjlh1100a, projectors k138, acer cme100w01m, projectors k138s, acer cme100w01mw, acer acerk138sti, acer cme100w01mwm, acer b0391709k138, projectors k138st, acer b0391709k138s
Barcodes 00888863023677, 03610174499059, 04053162882102, 04713147866250, 04713147866267, 04713147866274, 04713147930852, 04713392225673, 05054629859889

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See How Other Projectors Compare to the Acer K138ST

Acer P1385W vs Acer K138ST

Acer P1385W vs Acer K138ST
Acer P1385W Acer K138ST
£ 390.00 £299.00
Higher Maximum Horizontal Synchronization
Vastly Brighter Projector Brightness
Three VGA (D-Sub) Ports
Two HDMI Ports
Shorter Service Life of Lamp in Economic Mode
One Less Built-In Speaker

NEC M323X vs Acer K138ST

NEC M323X vs Acer K138ST
NEC M323X Acer K138ST
£ 532.57 £299.00
Vastly Higher Maximum Vertical Synchronization
75% Brighter Projector Brightness
70% Higher RMS Rated Power
One More VGA (D-Sub) Port
Shorter Service Life of Lamp in Economic Mode
Only One Built-In Speaker

Acer H6518BD vs Acer K138ST

Acer H6518BD vs Acer K138ST
Acer H6518BD Acer K138ST
£ 293.20 £299.00
75% Brighter Projector Brightness
One More VGA (D-Sub) Port
One More HDMI Port
40% Higher RMS Rated Power
25,000h Shorter Service Life of Lamp in Economic Mode
252% Higher Running Costs Over Five Years
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