Large Full frame (36 x 24 mm) sensor Large sensor in Canon EOS C400 ensures a good low light image quality compared to smaller sensor, and it also provide shallow depth of field and a nice blurry background when needed.
1500g Carrying this weight all day may not be very comfortable for you.
Body Thickness 135mm With a thickness of 135mm,Canon EOS C400 is not a pocketable camera for sure.