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Acer K138ST

alaTest has collected and analyzed 6 reviews of Acer K138ST. The average rating for this product is 3.1/5, compared to an average rating of 4.2/5 for other products in the same category for all reviews. People are impressed by the reliability. The size is also appreciated, whereas the noise and price get less positive opinions.

usability, size, reliability

image quality, price, noise

We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the Acer K138ST is awarded an overall alaScore™ of 90/100 = Excellent quality.

Review analysis

(Based on 6 reviews)

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Consumer review ( review summary for Acer K138ST


alaTest has collected and analyzed 1 user review of Acer K138ST from The average user rating for this product is 1.0/5, compared to an average user rating of 4.3/5 for other products in the same category on Some have doubts about the price and image quality.

image quality, price

0% of the reviews on give this product a positive rating.

Jul, 2019

Expert review by : Tony Hoffman (

Acer K138ST


The LED-based Acer K138ST has a relatively short throw distance and can project content from a smartphone via its MHL-enabled HDMI connection.

Compact. Lightweight. Can project content from a smartphone. Long lamp life. Short throw distance. Comes in soft carrying case.

Limited connection choices. Rainbow effect in video. Scaling artifacts visible at projector's native resolution.

Conclusion The Acer K138ST is compact and easily portable, and it has a relatively short throw for an LED projector, so you can position it close to the screen, and you can also display content from a smartphone attached to its MHL-enabled HDMI port....

Mar, 2016

Expert review by : Alex Hernandez (

Acer K138ST Projector review: A decent LED home projector


Projectors have multiple use applications from the office to a home theater and the Acer K138ST is capable of living in multiple worlds.

Compact and portable. Nice carrying case included. Easy setup and easy to use.

Speakers are weak, price point may be strong for a 720p projector.

A decent home or office with the basics and not much more.

Jun, 2016

Price comparison for Acer K138ST

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