product review
noun [ C or U ]
ukus COMMERCE, MARKETING
a report in a newspaper, magazine, or programme in which an expert gives an opinion about a product or compares various similar products:
This month's product reviews look at the latest satellite navigation systems.
E-COMMERCE, MARKETING (also customer review)
a report about a product written by a customer on a commercial website to help people decide if they want to buy it:
Product reviews on Amazon give the book an average of four stars.