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BenQ SP840

BenQ SP840
alaScore 78

15 reviews

Feb, 2016

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 and price, whereas some have doubts about the usability.

image quality, price, 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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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

Feb, 2016

Expert review by: Kat Orphanides (

BenQ SP840 review


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.

However, the very obvious rainbow effect detracted from our enjoyment and although the projector’s brightness is very welcome, £2,000 is a lot to pay for a single-chip DLP projector. We’d rather spend the money on a good LCD model and draw the...

Feb, 2011