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Acer K138STi
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Acer K138STi Projector

100000:1 WXGA (1280x800) 33dB 800 ANSI Lumens Mar 2016
Contrast Ratio (typical) Projector Native Resolution Noise Level Projector Brightness Release Date
$19.05 Electricity cost over 5 years. Calculate
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6 Reasons For

Acer Multimedia Projectors Have Good Reviews

On average Acer multimedia projectors are rated 79 out of 100, which is in the top 58% of all projector brands that we have assessed.

WXGA (1280x800) Projector Native Resolution

The highest resolution of the K138STi is WXGA (1280x800). That's over two times the resolution of the most common projector native resolution of WVGA (854x480).

This projector's resolution (WXGA (1280x800)) is actually the best resolution across all similar spec multimedia projectors that have been available for a comparable time to the K138STi.

Across similar types of projector the worst resolution is WVGA (854x480).

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Quite Big Uniformity

With a uniformity of 90 percent, the Acer K138STi has one of the bigger uniformitys amongst projectors of this age. Across all the similar spec data projectors that are a comparable age to the K138STi the uniformitys range from 75% to 900%.

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MP3 Audio Formats Supported

This multimedia projector audio formats supported, which is the most frequently found audio formats supported on projectors that were launched in the last 12 months.

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Fairly Bright Projector Brightness

At 800 ANSI lumens, the K138STi has a fairly bright projector brightness compared to most of the other comparable spec multimedia projectors that have been on the market for a similar time to the K138STi. The average projector brightness of battery powered projectors that were launched around the same time as the K138STi is 810 ANSI lumens, and the projector brightnesss range from 65 ANSI lumens to 3,500 ANSI lumens.

If you would prefer a projector with a brighter projector brightness then you might also want to consider the Sony VPL-DX270 (3,500 ANSI lumens).

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Very Low Power Consumption (economy Mode)

The average power consumption (economy mode) of latest similar spec data projectors is 240W. With a power consumption (economy mode) of only 38 Watts, the K138STi has one of the lower power consumption (economy mode)s amongst similar spec multimedia projectors of this age.

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6 Reasons Against

Does Not Support 3D

Like most of the other data projectors that have been available for the last year, the K138STi does not support 3D.

Other projectors which also support 3D that you might also want to look at include the Benq GS1, or the LG PH450UG which is also higher rated.

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Does Not Support Wi-Fi

The Acer K138STi does not support wi-Fi, although it is worth keeping in mind that most of the other new projectors also do not support wi-Fi.

Other multimedia projectors which also support wi-Fi that you might want to look at include the Pico Genie M400 Pro.

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Does Not Support Full HD

The K138STi does not support full HD. Most of the other comparable spec projectors that came out in the last 12 months also do not support full HD.

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Very Small Battery Capacity

Across all the battery powered projectors that were launched around the same time as the K138STi the battery capacitys range from 400mAh to 13,000mAh, and the average battery capacity is 4,800mAh. With a battery capacity of only 400 milliamperes * hour, the K138STi has one of the smaller battery capacitys amongst data projectors of this age.

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Very Dim Projector Brightness (economic Mode)

The average projector brightness (economic mode) of similar spec multimedia projectors that have been on the market for around the same time as the K138STi is 3,000 ANSI lumens. With a projector brightness (economic mode) of only 640 ANSI lumens, the K138STi has a quite dim projector brightness (economic mode) compared to most of the other multimedia projectors that have been on the market for around the same time as the K138STi.

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Very Small Optical Zoom

The K138STi has a fairly small optical zoom (only 1 times zoom factor) compared to most of the other comparable spec multimedia projectors that have been around for around the same time as the K138STi. The smallest optical zoom of newly released projectors is 1x, the biggest is 1.8x, and the average optical zoom is 1.3x.

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4 Other reasons to consider the Acer K138STi

Released Eleven Months Ago

This battery powered projector was released eleven months ago.

1280 X 800 Supported Graphics Resolutions

The highest resolution supported by the Acer K138STi is 1280 x 800. That's over two times the resolution of the most frequently found supported graphics resolutions of 800 x 600 (SVGA).

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Average Noise Level

The K138STi has a relatively standard noise level (33 decibels) compared to most of the other projectors that were launched around the same time as the K138STi.

If you are not worried about having a louder noise level then you might also want to consider the Optoma W330 (29dB).

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Average Battery Life (max)

The K138STi has a fairly typical battery life (max) (2.6 hours) compared to most of the other comparable spec multimedia projectors that have been available for a similar time to the K138STi.

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Specification

Projector
Contrast Ratio (typical)
Projector Native Resolution
Projector Brightness
Keystone Correction, Vertical
Uniformity
Vertical Synchronization (min)
Horizontal Synchronization (max)
Vertical Synchronization (max)
Horizontal Synchronization (min)
Projector Brightness (economic Mode)
Zoom Ratio
Projection Distance
Supported Aspect Ratios
Screen Size Compatibility
Native Aspect Ratio
Projection Technology
Number of Colours
Lamps
Lamps Quantity
Service Life of Lamp (economic Mode)
Lamp Type
Service Life of Lamp
Lens System
Optical Zoom
Throw Ratio
Digital Zoom
Focus
Video
Supported Graphics Resolutions
3D-Ready
HD-Ready
Ports & Interfaces
PC Audio in
PC Audio Out
PC in (D-Sub)
USB 2.0 Ports Quantity
Ethernet LAN (RJ-45) Ports
HDMI Ports Quantity
VGA (D-Sub) Ports Quantity
AC (power) in
Networking
Ethernet LAN
Storage
Compatible Memory Cards
Card Reader Integrated
Performance
Noise Level
Noise Level (economic Mode)
Multimedia
Audio Formats Supported
Video Formats Supported
RMS Rated Power
Number of Built-In Speakers
Design
Ceiling Mountable
Colour of Product
Product Type
Power
Power Source
Power Consumption (typical)
Power Consumption (economy Mode)
AC Input Voltage
Battery
Battery Life (max)
Battery Technology
Battery Capacity
Operational Conditions
Operating Relative Humidity (H-H)
Operating Temperature (T-T)
Weight & Dimensions
Weight
Height
Depth
Width

Running Cost

Hours of Use Per Day: hours
Show running costs over: years
Electricity cost when switched on $19.41
Electricity cost when on standby
@ $0.10525476 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
@ $0.0015024368 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 $19.41
Running costs for this projector have been estimated based on other similar projectors. If you know how much electricity and water the Acer K138STiuses 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.

Product Identifiers

Manufacturer Part Numbers acer k138, acer k138s, acer k138st, acer k138sti, acer acerk138, acer 1280x800, acer acerk138s, acer acerk138st, acer acerk138sti
Barcodes 04713392225673
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