Here we are comparing two cameras with different body types: Canon 1D X II, which was introduced in February 2016 is a Pro DSLR camera with a 20.0MP Full frame sensor whereas Sony A9, which was introduced in April 2017 is a Pro Mirrorless camera with a 24.0MP Full frame 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. Canon 1D X II is ranked #2
out of 34 Pro DSLR cameras with an overall score of 84 whereas Sony A9 is ranked #8
out of 39 Pro Mirrorless cameras with an overall score of 93.
Let's have a brief look at the main features of Canon 1D X II and Sony A9 before getting into our more detailed comparison.