Not OP but I'm a fan of keeping up with camera tech.
dpreview.com is my goto for comparing cameras. There are 7 different RX100's as Sony keeps upgrading it every year - mostly little things - more focus points, faster focus and light metering, higher frames per second... you really can't go wrong just buying the most expensive one in your budget, even the oldest ones will take great pictures -- they'll just be slower.
Also worth looking into, my favorite cameras are 'fixed prime' - there's no zoom so you have to be creative and zoom with your feet, and the lens is matched to the sensor and gives really surprising high quality shots without much effort.
dpreview.com is my goto for comparing cameras. There are 7 different RX100's as Sony keeps upgrading it every year - mostly little things - more focus points, faster focus and light metering, higher frames per second... you really can't go wrong just buying the most expensive one in your budget, even the oldest ones will take great pictures -- they'll just be slower.
Check out
https://www.dpreview.com/reviews/buying-guide-best-pocketabl...
Also worth looking into, my favorite cameras are 'fixed prime' - there's no zoom so you have to be creative and zoom with your feet, and the lens is matched to the sensor and gives really surprising high quality shots without much effort.
https://www.dpreview.com/reviews/buying-guide-best-fixed-pri...
Happy shooting.