alaTest has collected and analyzed 8 user reviews of Sylvania SMP 4200 MP3 Player 4 GB from Amazon.com. The average user rating for this product is 3.3/5, compared to an average user rating of 3.8/5 for other products in the same category on Amazon.com. People are impressed by the usability and durability. The size and portability are also mentioned favorably, whereas there are some less positive reviews about the performance.