RAW shooting capability
RAW files contains much more color information compared to JPEGs, and gives you more room for post processing without significant quality loss. They provide wider dynamic range and option to recover shadow and highlight clipping to some degree.
4.2X Optical Zoom
A Lens with a higher zoom ratio would make it more practical as a carry everywhere camera. Average sized 1″ (13.2 x 8.8 mm) sensor
Canon G5 X's 1″ (13.2 x 8.8 mm) sensor size is ideal for many street photographers as it provides a good level of low-light performance and depth of field control while keeping the camera body small.
Carrying this weight all day may not be very comfortable for you. Body Thickness 44mm
With a thickness of 44mm,Canon G5 X is not a pocketable camera for sure.