Here we are comparing two cameras with different body types: Sony A6400, which was introduced in January 2019 is a Semi-Pro Mirrorless camera with a 24.0MP APS-C sensor whereas Pentax K-S2, which was introduced in February 2015 is a Entry-Level DSLR camera with a 20.0MP APS-C sensor.
Despite some fundamental differences of these two body types, Mirrorless cameras are becoming serious alternatives to DSLR cameras thanks to their size/weight advantages and recent improvements in their focus speeds , which makes this comparison even more interesting. Fortunately, you can't go wrong with any of these cameras as we rank them amongst Top 10 cameras in their classes. Sony A6400 is ranked #4
out of 44 Semi-Pro Mirrorless cameras with an overall score of 81 whereas Pentax K-S2 is ranked #2
out of 79 Entry-Level DSLR cameras with an overall score of 81.
Let's have a brief look at the main features of Sony A6400 and Pentax K-S2 before getting into our more detailed comparison.