Here we are comparing two cameras with different body types: Sony RX1R, which was introduced in June 2013 is a Large Sensor Compact camera with a 24.0MP Full frame sensor whereas Panasonic S1, which was introduced in February 2019 is a Pro Mirrorless camera with a 24.0MP Full frame sensor.
Comparing an interchangeble lens camera to a fixed lens camera is a bit tricky but we will do our best to make this a fair comparison. Fortunately, you can't go wrong with any of these cameras as we rank them amongst Top 10 cameras in their classes. Sony RX1R is ranked #9
out of 57 Large Sensor Compact cameras with an overall score of 73 whereas Panasonic S1 is ranked #9
out of 38 Pro Mirrorless cameras with an overall score of 92.
Let's have a brief look at the main features of Sony RX1R and Panasonic S1 before getting into our more detailed comparison.