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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 Projectors for all reviews. Reviewers really like the reliability. The size is also appreciated, whereas many are critical about the noise and price.

usability, size, reliability

image quality, price, noise

We analyzed user and expert ratings, product age and more factors. Compared to other Projectors the Acer K138ST is awarded an overall alaScore™ of 91/100 = Excellent quality.

Review analysis

(Based on 6 reviews)

Expert Reviews  

User Reviews  

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Consumer review by: (amazon.co.uk)

Amazon.co.uk review summary for Acer K138ST

 

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

image quality, price

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

This summary is based on the products: Acer K138ST 3D Portable Projector, WXGA, 800Lm, 100.000/1, HDMIAcer K138ST 3D Portable Projector, WXGA, 800Lm, 100.000/1, HDMI

Nov, 2017

Expert review by: Tony Hoffman (pcmag.com)

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 (techaeris.com)

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

Product Specifications

Design

Ceiling mountable: Yes
Ceiling mounting supported:Y
Color of product:White
Form Factor:Desktop / Portable
Product type:Desktop projector / Portable projector

Display

Built-in display:N / No

Energy Management

AC adapter input voltage:100 - 240
AC input voltage:100 - 240
Consumption (economy mode):38
Power consumption (PowerSave):38
Power consumption (typical):80
Power Source:AC

Lamps

Lamp Type:LED
Lamps quantity:1
Service life of lamp:20000
Service life of lamp (economic mode):30000

Lens System

Digital Zoom:1.7
Focus:Manual
Optical Zoom:1
Throw ratio:0.8:1

Multimedia

Built-in speaker(s):Y
Built-in speakers: Yes
Number of built-in speakers:2
RMS rated power:3 / 6

Networking

Ethernet LAN:N
Ethernet LAN connection: No
Wi-Fi:N / No

Operational Conditions

Operating relative humidity (H-H):0 - 80
Operating relative humidity range:0 - 80
Operating temperature (T-T):5 - 40
Operating temperature range (T-T):5 - 40

Other Features

Audio Input:Y
Audio Output:Y

Packaging Content

AC adapter bundled: Yes
AC adapter included:Y
Batteries included:Y / Yes
Cables included:AC
Carrying case:Y / Yes
Handheld remote control:Y / Yes
Manual: Yes
Quick start guide:Y / Yes
Remote Control Type:IR
User guide:Y / Yes

Performance

Mac operating systems supported:Y / Yes
Noise Level:33
Noise level (economic mode):29
Plug and Play: Yes
Vertical scan range:50 - 120
Windows operating systems supported:Y / Yes

Ports & interfaces

AC (power) in:Y / Yes
DC-in jack: Yes
DVI port:N / No
HDMI connector type:Full-size
HDMI ports quantity:1
USB 2.0 ports quantity:1
VGA (D-Sub) ports quantity:1

Power

AC input voltage:100 - 240
Power consumption (economy mode):38
Power consumption (PowerSave):38
Power consumption (typical):80
Power Source:AC

Projector

Contrast ratio (dynamic):100000:1
Contrast ratio (typical):100000:1
Horizontal synchronization (max):0.1 / 100
Horizontal synchronization (min):0.03 / 30
Keystone correction, vertical:-20 - 20 / -40 - 40
Maximum digital resolution:1920 x 1080
Native Aspect Ratio:16:10
Number of colors:1.073 billion colors / 1070
Objective projection distance:15.7 - 66.9
Projection distance:15.7 - 66.9
Projection technology:DLP
Projector brightness:800
Projector native resolution:WXGA (1280x800)
Screen size compatibility:25 - 100
Supported aspect ratios:4:3, 16:10, 16:9 / 4:3, 16:9 / 4:3, 16:9, 16:10
Vertical synchronization (max):0.12 / 120
Vertical synchronization (min):0.05 / 50
Zoom capability: Yes

Storage

Card reader integrated:N / No

Video

3D:Y
3D compatibility: Yes
3D-ready:Y / Yes
Full HD:N / No
HD-Ready: Yes
Supported graphics resolutions:1920 x 1080 (HD 1080)

Weight & Dimensions

Weight:26.4 / 26.5