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BenQ SP840

BenQ SP840
alaScore 79

15 reviews

Oct, 2015

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. People are impressed by the size. The image quality is also mentioned favorably, but some have doubts about the usability. There are some mixed views about the price.

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 79/100 = Good quality.

Review analysis

(Based on 15 reviews)

Expert Reviews  

User Reviews  

Showing 3 review(s)

Expert Reviews User Reviews
Showing 1 - 3 of 3 Show Reviews: in English | in other languages (12)

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 People really like the price.


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

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

Oct, 2015

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