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BenQ SP840

BenQ SP840
alaScore 78

15 reviews

Oct, 2017

alaTest has collected and analyzed 15 reviews of BenQ SP840. The average rating for this product is 3.8/5, compared to an average rating of 4.2/5 for other Projectors for all reviews. Reviewers really like the size. The image quality is also mentioned favorably. There are some mixed comments about the price. Some have doubts about the usability.

image quality, size


We analyzed user and expert ratings, product age and more factors. Compared to other Projectors the BenQ SP840 is awarded an overall alaScore™ of 78/100 = Good quality.

Review analysis

(Based on 15 reviews)

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User Reviews  

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Consumer review by: ( review summary for BenQ SP840


alaTest has collected and analyzed 2 user reviews of BenQ SP840 from The average user rating for this product is 5.0/5, compared to an average user rating of 4.3/5 for other Projectors on Reviewers really like the price.


100% of the reviews on give this product a positive rating.

This summary is based on the products: BenQ SP840 - DLP Projector - 4000 ANSI lumens - 1920 x 1080 - widescreen - High Definition 1080p - LANBenQ SP840 - DLP Projector - 4000 ANSI lumens - 1920 x 1080 - widescreen - High Definition 1080p - LAN

Oct, 2017

Expert review by: (

BenQ SP840 review


The BenQ SP840 is a stunningly bright projector with a 4,000 lumens lamp. It means that you should be able to use it in any room without having to dim lights or close curtains. This brightness also makes the SP840 far more suitable as a living room TV...

The SP840 is clearly designed for use in well-lit public areas, but the rainbow effect and high price were more than enough to put us off.

Feb, 2011

Product Specifications


Native Aspect Ratio:16:9
Number of Colours:1.073 billion colours
Projector native resolution:1080p (1920x1080) / WUXGA (1920x1200)
Supported aspect ratios:16:9